4.7 Review

Recent advances in the synthesis and catalytic applications of metal-organic framework/covalent organic framework composites

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Article Chemistry, Physical

A Z-scheme heterojunction of porphyrin-based core-shell Zr-MOF@Pro-COF-Br hybrid materials for efficient visible-light-driven CO2 reduction

Jiajia Wang et al.

Summary: Converting CO2 to high value-added products through artificial photosynthesis is promising but efficient photocatalyst fabrication remains challenging. In this study, a series of novel core-shell hybrid materials were constructed by in-situ coating Pro-COF-Br on the NH2-UiO-66 core. The hybrid materials had abundant unsaturated metal sites from the core and high surface area, stability, and CO2 capture capacity from the Pro-COF-Br shell. The addition of a porphyrin structure and C=N covalent bonds improved visible light utilization and electron transfer rate, while a Z-scheme heterostructure enhanced electron-hole separation efficiency and improved visible light-driven CO2 reduction. The synthesized product M@C-Br-1 exhibited the highest CO yield and selectivity, offering a facile and effective strategy for constructing core-shell MOFs@COF photocatalysts.

JOURNAL OF MATERIALS CHEMISTRY A (2023)

Review Chemistry, Multidisciplinary

Rare earth-based MOFs for photo/electrocatalysis

Senyao Meng et al.

Summary: Metal-organic frameworks (MOFs) are porous crystalline materials with potential applications in energy storage, catalysis, and separation. Rare earth MOFs, in particular, have unique optical and electrical properties due to the presence of rare earth metal ions, making them suitable for photocatalytic and electrocatalytic purposes.

MATERIALS CHEMISTRY FRONTIERS (2023)

Article Chemistry, Multidisciplinary

Growing ZIF-8 Seeds on Charged COF Substrates toward Efficient Propylene-Propane Separation Membranes

Yunchuan Pu et al.

Summary: We demonstrate a COF-induced seeding strategy for fabricating MOF membranes, using COF substrate with uniform pore size and abundant functional groups. Charged COF nanosheets were designed to induce the formation of high aspect ratio ZIF-8@COF nanosheet seeds, which could be processed into a compact and uniform seed layer. The resulting ZIF-8 membranes exhibit ultrahigh C3H6/C3H8 separation performance and excellent long-term stability, and this strategy is also applicable to ultrathin ZIF-67 and UiO-66 membranes.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Chemistry, Physical

CeO2 as an electron pump to boost the performance of Co4N in electrocatalytic hydrogen evolution, oxygen evolution and biomass oxidation valorization

Peiyun Zhou et al.

Summary: Developing multifunctional electrocatalysts with excellent hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and 5-hydroxymethylfurfural oxidation reaction (HMFOR) activities is crucial for achieving carbon neutrality. In this study, CeO2 is incorporated into the Co4N system as an electron pump, facilitating electron transfer from Co4N to CeO2. The optimized interface electronic structure of Co4N@CeO2 results in outstanding performance in HER, OER, and HMFOR. The introduction of CeO2 significantly lowers the overpotentials required for HER and OER, and enhances the HMFOR process by improving OH- adsorption.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Physical

Photochemically triggered self-extraction of uranium from aqueous solution under ambient conditions

Yezi Hu et al.

Summary: Photocatalytic extraction of uranium from nuclear wastewater and seawater is a highly effective and promising strategy to avoid environmental pollution and recover uranium resources. This study proposes a novel photochemical approach that can efficiently and selectively extract uranium without the need for additional electron-donor agents, by generating hydrogen peroxide.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Physical

Immobilization of U(VI) onto covalent organic frameworks with the different periodic structure by photocatalytic reduction

Xin Zhong et al.

Summary: In recent years, the D-A covalent organic frameworks (COFs) have been studied for their potential applications in photocatalysis, specifically for the removal of uranium (U(VI)) from wastewater. Three 2D COFs materials (Tp-Tapb, Tp-Taz, and TpTt) with similar structures but different building monomers and acceptor distances were synthesized and compared for their photocatalytic performance and U(VI) removal efficiency. TpTt showed the best performance, attributed to the coexistence of triazine and ketone groups and its high content of heteroatoms.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Multidisciplinary

Ce-doped MIL-125-NH2 coupled Ce4+/Ce3+and Ti4+/Ti3+redox mediators for thermo-enhanced photocatalytic oxidative desulfurization

Kaiyue Zhang et al.

Summary: Photocatalytic oxidative desulfurization (PODS) using efficient Ce-doped MIL-125-NH2 photocatalysts was successfully achieved for the removal of dibenzothiophene (DBT) under mild reaction conditions. The high performance was attributed to the high surface area and the formation of Ce-Ti-oxo clusters, as well as the valence transformation of Ce4 + /Ce3 + and Ti4 + /Ti3 + redox mediators. Increasing the reaction temperature was found to enhance the PODS performance, and a thermo-enhanced PODS mechanism was proposed.

CHINESE CHEMICAL LETTERS (2023)

Review Chemistry, Inorganic & Nuclear

Strategies for enhancing the catalytic activity and electronic conductivity of MOFs-based electrocatalysts

Peiyun Zhou et al.

Summary: In recent years, Metal-Organic Frameworks (MOFs) have been applied as promising electrocatalysts, but their catalytic activity and electronic conductivity remain unsatisfactory. This review summarizes the research efforts to optimize the intrinsic activity and electronic conductivity of MOFs-based electrocatalytic materials. It discusses strategies to enhance the activity of active sites and increase the number of accessible active sites based on the reaction mechanisms of various electrochemical processes. It also outlines strategies to improve electronic conductivity through the design and construction of MOFs derivatives.

COORDINATION CHEMISTRY REVIEWS (2023)

Article Chemistry, Physical

Constructing tightly integrated conductive metal-organic framework/covalent triazine framework heterostructure by coordination bonds for photocatalytic hydrogen evolution

Lu-Hua Shao et al.

Summary: Through a novel coordinating connection mode, a covalent triazine framework (CTF-1) is tightly integrated with a conductive two-dimensional metal-organic framework (Ni-CAT-1), resulting in significantly enhanced visible-light-driven hydrogen evolution. The conductive 2D Ni-CAT-1 effectively facilitates the separation of photogenerated carriers and leads to a remarkable improvement in photocatalytic hydrogen evolution activity. This work provides a novel strategy for constructing tightly integrated MOF/COF hybrid materials.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Chemistry, Physical

Covalently connected core-shell NH2-MIL-125@COFs-OH hybrid materials for visible-light-driven CO2 reduction

Jiajia Wang et al.

Summary: In this study, covalently connected core-shell metal-organic frameworks (MOFs)@covalent-organic frameworks (COFs) hybrid materials were successfully synthesized. The hybrid materials exhibited high surface area and abundant unsaturated metal sites. The COFs shell provided excellent physicochemical stability, visible-light response, and suitable band gaps. The formed heterostructure showed improved CO2 photocatalytic reduction performance by enhancing electron transfer and separation of electron-hole pairs.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Engineering, Chemical

A novel Sunflower-like MOF@COF for improved photocatalytic CO2 reduction

Zhiliang Wu et al.

Summary: Metal-organic framework (MOF) and covalent organic framework (COF) hybrid materials, with their complementary advantages and suitable band gap, have attracted significant attention in photocatalysis research. The formation of a novel sunflower-like strong pi-pi bond stacking MOF@COF hybrid platform was achieved by introducing a preformed synthetic COF into the MOF precursor solution and modulating its morphology. The synthesized MOF on the COF hybrid platform exhibited excellent catalytic activity in the photocatalytic CO2 reduction reaction under simulated sunlight, with impressive CH4 yieldrate, apparent quantum yield, and methane selectivity.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Chemistry, Multidisciplinary

Structural Engineering of Ionic MOF@COF Heterointerface for Exciton-Boosting Sunlight- Driven Photocatalytic Filter

Yite Li et al.

Summary: An ionic ZIF-8@iCOF nanocomposite was designed as a sunlight-driven photocatalytic filter, which achieved improved visible light absorption and enhanced ROS generation, resulting in antibacterial efficiency of 99.99999%. Furthermore, the combination of the material with a commercial polymer formed fibrous membranes with high interception efficiency, good biocompatibility, and strong bacteria elimination under sunlight conditions.

ACS NANO (2023)

Article Chemistry, Multidisciplinary

Electrochemical Oxidation of 5-Hydroxymethylfurfural on CeO2-Modified Co3O4 with Regulated Intermediate Adsorption and Promoted Charge Transfer

Gongchi Zhao et al.

Summary: In this study, a heterointerface was constructed by modifying CeO2 nanoparticles on Co3O4 nanowires supported by nickel foam, which facilitated the structural evolution of catalysts and charge transfer. The NF@Co3O4/CeO2 exhibited higher conversion, yield, and efficiency compared to NF@Co3O4 and NF@CeO2 due to the establishment of the heterointerface. Density-functional theory calculations showed that the heterointerface effectively regulated intermediate adsorption and promoted electron transfer, leading to improved performance of electocatalytic 5-hydroxymethylfurfural oxidation reaction (HMFOR).

ADVANCED FUNCTIONAL MATERIALS (2023)

Review Chemistry, Multidisciplinary

Metal-Organic Frameworks for Photocatalytic Water Splitting and CO2 Reduction

Kang Sun et al.

Summary: Photocatalytic water splitting and CO2 reduction using metal-organic frameworks (MOFs) have great potential for addressing energy and environmental issues. This review discusses the semiconductor-like behavior of MOFs and summarizes recent advances in photocatalytic water splitting and CO2 reduction using MOF-based materials. The unique advantage of MOFs in elucidating the structure-property relationship in photocatalysis is highlighted, along with representative characterization techniques for studying the kinetics and reaction intermediates. The challenges and future directions are also proposed.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Environmental Sciences

Covalent organic frameworks@ZIF-67 derived novel nanocomposite catalyst effectively activated peroxymonosulfate to degrade organic pollutants

Yuanyuan Li et al.

Summary: By preparing a novel nanocomposite catalyst (CC@Co3O4) derived from MOFs-COFs and using PMS activation, the catalytic performance for the degradation of bisphenol A (BPA) and rhodamine B (RhB) was significantly improved.

CHEMOSPHERE (2023)

Review Chemistry, Inorganic & Nuclear

Recent advances in thermocatalytic hydrogenation of unsaturated organic compounds with Metal-Organic Frameworks-based materials: Construction strategies and related mechanisms

Danfeng Zhao et al.

Summary: Metal-Organic Frameworks (MOFs) are highly versatile catalytic platforms for hydrogenation reactions due to their tunable pore size, structural diversity, large specific surface area, and functional tunability. MOFs can integrate various hydrogenation active sites, including metal nodes, organic ligands, and diverse pore structure-constrained guest species, such as metal nanoparticles. Additionally, MOFs can serve as templates/precursors for the synthesis of porous carbon materials, metal-based compounds, and their composites, leading to single-atom catalysts with superior activity. This review summarizes the progress in MOFs-based materials for catalytic hydrogenation, focusing on preparation strategies, structural design, and the synergy between active sites and structural properties, as well as the theoretical simulation studies of hydrogenation reaction pathways.

COORDINATION CHEMISTRY REVIEWS (2023)

Article Chemistry, Multidisciplinary

Enhancing Photocatalytic Hydrogen Production via the Construction of Robust Multivariate Ti-MOF/COF Composites

Cheng-Xia Chen et al.

Summary: This study utilized a covalent-integration strategy to construct a series of multivariate Ti-MOF/COF hybrid materials, which exhibited excellent visible-light utilization, suitable band gap, and high surface area for enhanced visible-light-driven photocatalytic H-2 evolution performance. The resulting composites showed significantly improved H-2 evolution rates compared to individual components, suggesting a promising new approach for highly efficient photocatalysts beyond H-2 evolution.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Review Chemistry, Inorganic & Nuclear

Recent advances in Metal-Organic Frameworks-based materials for photocatalytic selective oxidation

Guilong Lu et al.

Summary: The review summarizes strategies for constructing efficient photocatalyst systems and advanced techniques for investigating reaction mechanisms; discusses the application of MOFs in photocatalytic selective oxidation reactions and summarizes the role of reactive oxygen species (ROS) and corresponding regulation strategies; anticipates challenges and future developments of MOFs-based photocatalysts in this research area.

COORDINATION CHEMISTRY REVIEWS (2022)

Review Chemistry, Multidisciplinary

MOF-COF Composite Photocatalysts: Design, Synthesis, Mechanism

Guangsong Yuan et al.

Summary: This paper provides a detailed discussion on the design, synthesis, and mechanistic analysis of MOF-COF photocatalysts. It covers the improvement of photocatalytic properties through MOF-COF heterojunction structures, the synthesis of MOF-COF photocatalysts with different core-shell and non-core-shell structures, and the analysis of photocatalytic mechanisms for hydrogen evolution and photodegradation. The challenges and opportunities of MOF-COF photocatalysts are also discussed.

CRYSTAL GROWTH & DESIGN (2022)

Article Chemistry, Physical

Combining metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs): Emerging opportunities for new materials and applications

Zhixi Li et al.

Summary: This review classifies and summarizes the synthesis strategies of recently reported metal-organic frameworks, covalent organic frameworks, and MOF@COF hybrids based on the integration of metal-ligand coordination and dynamic covalent bonds. The application performances in fields such as adsorption, separation, catalysis, biosensing, and energy storage are discussed and highlighted. Personal insights on remaining challenges and future prospects are provided to inspire more efforts and innovations in this hot research field.

NANO RESEARCH (2022)

Review Chemistry, Multidisciplinary

Process of metal-organic framework (MOF)/covalent-organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Bingbing Cui et al.

Summary: The exploration of electrocatalysts, such as metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and porous-organic polymers, has become a big challenge in the face of the fossil-fuel shortage and severe environmental issues. These materials offer opportunities for the development of various electrocatalysts with large surface area and effective functionalization. The resulting MOF/COF heterostructures can be widely applied in clean energy and energy transfer fields. The hybrids of MOFs and COFs have been utilized as versatile precursors for transition metal catalysts, leading to vast applications in energy transfer and storage.

NANOSCALE (2022)

Review Chemistry, Physical

Heterostructured hybrids of metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs)

Chuanpan Guo et al.

Summary: Metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) possess ordered crystalline structures and superior performance, combining them into one system can generate hybrid nanomaterials with better performance. MOF/COF heterostructures exhibit excellent properties due to the synergistic effects of components, showing a wide range of potential applications.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Review Nanoscience & Nanotechnology

Cooperation between covalent organic frameworks (COFs) and metal organic frameworks (MOFs): application of COFs-MOFs hybrids

Rui Xue et al.

Summary: The application and development of porous materials have a long history. COFs and MOFs, as typical representatives, have great application potential in adsorption, catalysis, and separation analysis. COFs-MOFs hybrid materials combine the advantages of both materials and have potential applications in multiple fields.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

Article Nanoscience & Nanotechnology

Rational Design of Novel COF/MOF S-Scheme Heterojunction Photocatalyst for Boosting CO2 Reduction at Gas-Solid Interface

Qing Niu et al.

Summary: Solar-driven photoreduction of CO2 into valuable fuels is a sustainable technology to address the energy crisis and greenhouse effect. Researchers have proposed a novel COF/MOF heterojunction photocatalyst through interfacial engineering, achieving efficient reduction of CO2 to CO.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Chemistry, Multidisciplinary

Semiconducting Metal-Organic Frameworks Decorated with Spatially Separated Dual Cocatalysts for Efficient Uranium(VI) Photoreduction

Kaifu Yu et al.

Summary: In this study, a new heterostructured photocatalyst was developed for efficient U(VI) photoreduction by achieving effective charge separation and utilization, resulting in high removal efficiency.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Applied

A stable MOF@COF-Pd catalyst for C-C coupling reaction of pyrimidine sulfonate and arylboronic acid

Quanlu Yang et al.

Summary: A novel porous composite material MOF@COF has been successfully constructed and applied in the field of catalysis, showing high stability and catalytic activity, making it an excellent catalyst support material.

APPLIED ORGANOMETALLIC CHEMISTRY (2022)

Article Engineering, Environmental

Covalently connected core-shell NH2-UiO-66@Br-COFs hybrid materials for CO2 capture and I2 vapor adsorption

Jiajia Wang et al.

Summary: In this study, a novel core-shell NH2-UiO-66@Br-COFs hybrid material was successfully prepared by growing a Br-COFs shell on the surface of NH2-UiO-66 core. The unique structure generated at the core-shell interface, which could be effectively adjusted by the coating amount of Br-COFs, contributed to the increased ultramicropore volume. These ultramicropores positively impacted the CO2 capacity, surpassing that of the single MOF and COF.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Materials Science, Multidisciplinary

Highly dispersed Pd clusters/nanoparticles encapsulated in MOFs via in situ auto-reduction method for aqueous phenol hydrogenation

Xiubing Huang et al.

Summary: In this work, a novel in situ auto-reduction strategy was developed to encapsulate uniformly dispersed Pd clusters/nanoparticles in MIL-125-NH2. The amino groups in MIL-125-NH2 can react with formaldehyde to form novel reducing groups (-NH-CH2OH), which can in situ auto-reduce the encapsulated Pd2+ ions to metallic Pd clusters/nanoparticles. This strategy limits the aggregation and migration of Pd clusters and the formation of large Pd nanoparticles by controlling the amount of Pd2+ precursor. When applied as catalysts in the hydrogenation of phenol in the aqueous phase, the obtained Pd(1.5)/MIL-125-NH-CH2OH catalyst exhibited excellent performance with high phenol conversion and cyclohexanone selectivity, as well as remarkable reusability due to the highly dispersed Pd clusters/nanoparticles and their stability within the MIL-125-NH-CH2OH framework.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

Article Engineering, Chemical

Excellent photoreduction performance of U(VI) on metal organic framework/covalent organic framework heterojunction by solar-driven

Xin Zhong et al.

Summary: This study investigated the photocatalytic reduction of U(VI) using MOF photocatalysts. The results showed that the NH2--MIL-125(Ti)@TpPa-1 heterojunction had better photoreduction efficiency and could convert U(VI) into U(IV). Photogenerated electrons and superoxide radicals played important roles in the photoreduction process. The hybridization of MOF@COF acted synergistically in the adsorption-photocatalytic reduction of U(VI).

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Confining Metal-Organic Framework in the Pore of Covalent Organic Framework: A Microscale Z-Scheme System for Boosting Photocatalytic Performance

Yang Deng et al.

Summary: A novel COF@MOF micro/nanopore network is constructed by confining metal-organic framework (MOF) in the 1D channel of the 2D covalent organic framework (COF). The hierarchical porous structure endows the material with superior adsorption capacity and the integration of COF and MOF forms a Z-scheme photocatalytic system, significantly improving the photocatalytic activity.

SMALL METHODS (2022)

Review Chemistry, Multidisciplinary

2D Covalent Organic Frameworks Toward Efficient Photocatalytic Hydrogen Evolution

Yang Li et al.

Summary: Efficiently producing clean energy is crucial for sustainable environmental development. Solar-driven water splitting for hydrogen production plays an important role in renewable energy technologies. 2D covalent organic frameworks (COFs) have gained widespread interest as photocatalysts due to their tunable optical properties and excellent stability. However, there are still challenges to be addressed in practical applications.

CHEMSUSCHEM (2022)

Review Chemistry, Inorganic & Nuclear

Porphyrin and phthalocyanine based covalent organic frameworks for electrocatalysis

Shengsheng Huang et al.

Summary: Covalent organic frameworks (COFs) are a rapidly growing class of crystalline porous polymers that have a wide range of applications due to their unique features. By incorporating porphyrin (Por-) and phthalocyanine (Pc-) building units into COFs, they acquire unique structural characteristics and excellent optical and electrical properties. Recent progress has been made in the rational design and construction of Por- and Pc-based COFs for electrocatalytic water splitting, CO2 reduction, and oxygen reduction. This article provides a summary of the synthetic strategies of Por- and Pc-based COFs, an overview of their applications in electrocatalytic reactions, and discusses the current challenges and directions for further development.

COORDINATION CHEMISTRY REVIEWS (2022)

Review Chemistry, Analytical

Combination of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs): Recent advances in synthesis and analytical applications of MOF/COF composites

Mingcai Ma et al.

Summary: Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are materials with tunable structures, high specific surface area, and ordered pores. MOF/COF composites, prepared by combining MOFs and COFs, have potential applications in fields such as analytical chemistry, catalysis, and energy storage. However, there are challenges associated with the future development of MOF/COF composites.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Core-Shell Carbon-Based Bifunctional Electrocatalysts Derived from COF@MOF Hybrid for Advanced Rechargeable Zn-Air Batteries

Wei Li et al.

Summary: A core-shell structured carbon-based hybrid electrocatalyst with excellent catalytic properties has been successfully fabricated for Zn-air batteries, demonstrating high power-density and stable rechargeability.
Article Multidisciplinary Sciences

Linking oxidative and reductive clusters to prepare crystalline porous catalysts for photocatalytic CO2 reduction with H2O

Jie Zhou et al.

Summary: This study reports the development of a crystalline hetero-metallic cluster catalyst, MCOF-Ti6Cu3, based on the cooperation between MOF and COF. The catalyst exhibits efficient coupling of photocatalytic CO2 reduction and H2O oxidation by utilizing dynamic covalent bonds between clusters to promote photo-induced charge separation and transfer. The MCOF-Ti6Cu3 catalyst shows fine activity in the conversion of CO2 and water into HCOOH.

NATURE COMMUNICATIONS (2022)

Article Chemistry, Multidisciplinary

Facet Engineering of a Metal-Organic Framework Support Modulates the Microenvironment of Palladium Nanoparticles for Selective Hydrogenation

Ming-Liang Gao et al.

Summary: The exposed facets of supported catalysts are crucial in catalysis, but they are usually ignored. This study demonstrates that crystal facet engineering of supports can modulate the microenvironment and electronic state of supported metal nanoparticles, leading to enhanced catalysis.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Article Chemistry, Physical

Constructing Cu ion sites in MOF/COF heterostructure for noble-metal-free photoredox catalysis

Wei Han et al.

Summary: In this study, a multifunctional MOF/COF heterostructured photocatalyst was reported, which successfully achieved efficient separation of photogenerated charges and utilized immobilized Cu ions as active sites, resulting in high photocatalytic activity and selectivity.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

The excellent photocatalytic overall water splitting activity of TpPa-1-COF excited via MOF derived FeP-PC and a-Fe2O3 dual cocatalysts

Mei-Ling Xu et al.

Summary: Covalent organic frameworks (COFs) show great potential in the field of photocatalysis. However, the rapid charge recombination and insufficient redox catalytic capacity hinder the overall water splitting performance of COF-based photocatalysts. In this study, a novel Fe-MOF-derived dual co-catalyst was designed to enhance charge carrier separation and utilization, resulting in improved water splitting performance. The construction of Z-scheme heterostructures facilitated charge separation and transport.

APPLIED SURFACE SCIENCE (2022)

Article Engineering, Environmental

Construction of covalent-integrated MOFs@COFs composite material for efficient synergistic adsorption and degradation of pollutants

Liujun Yang et al.

Summary: In this paper, a covalent-integrated strategy is adopted to construct a MOFs@COFs Z-scheme heterojunction composite material consisting of Ti-MOFs and COFs. This material exhibits a broader visible light response range and higher adsorption and degradation performance, making it a promising photocatalytic material.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Configuration of hetero-framework via integrating MOF and triazine-containing COF for charge-transfer promotion in photocatalytic CO2 reduction

Lei Wang et al.

Summary: Photocatalytic CO2 reduction into high value-added chemicals can be improved by engineering heterostructures. In this study, three metal organic frameworks (MOFs) were grown on a triazine-containing covalent framework, resulting in high catalytic performance for CO2 reduction.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Selective and Efficient Photoextraction of Aqueous Cr(VI) as a Solid-State Polyhydroxy Cr(V) Complex for Environmental Remediation and Resource Recovery

Ling Yao et al.

Summary: A catalyst-free strategy for aqueous Cr(VI) extraction is developed, achieving efficient extraction and recovery of chromium resources through the formation of a polyhydroxy Cr(V) complex.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Chemistry, Physical

Accelerating the Fe(III)/Fe(II) cycle via enhanced electronic effect in NH2-MIL-88B(Fe)/TPB-DMTP-COF composite for boosting photo-Fenton degradation of sulfamerazine

Xiaolong Hu et al.

Summary: In this study, NH2-MIL-88B(Fe) (NM88) was modified and constructed with 3,5-diaminobenzoic acid (DB) and TPB-DMTP-COF (COF-OMe) to form NM88(DB)0.85/COF-OMe composite for photo-Fenton degradation of sulfamerazine (SMR). The modified composite exhibited higher degradation rates and good reusability compared to other reported catalysts, showing promising potential for practical applications.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Materials Science, Multidisciplinary

Graphene oxide modified UiO-66-NH2/COF for promoting photocatalytic H-2 evolution

Guangsong Yuan et al.

Summary: By modifying UiO-66-NH2/TAPT-TP-COF organic frameworks with graphene oxide, the photocatalytic activity was significantly improved, mainly due to the interfacial contact between graphene oxide and UiO-66-NH2.

MATERIALS LETTERS (2022)

Review Chemistry, Multidisciplinary

Progress in Hybridization of Covalent Organic Frameworks and Metal-Organic Frameworks

Yang Deng et al.

Summary: Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) hybrid materials are porous crystalline materials with hierarchical pore structures that integrate the characteristics of MOFs and COFs. The field is rapidly advancing and finding applications in diverse areas. Studies have shown that different MOF/COF hybrid materials with diverse structures and properties can be synthesized through various chemical reactions, offering potential for addressing energy and environmental challenges. It is important to accurately trace the developments in this area and explore the structural design and potential applications of MOF/COF hybrid materials.
Article Engineering, Environmental

ZIF-8/covalent organic framework for enhanced CO2 photocatalytic reduction in gas-solid system

Rui-Gang Yang et al.

Summary: A photocatalyst TpPa/ZIF-8 composed of a Schiff-based covalent organic framework (TpPa-1) and a metal-organic framework (ZIF-8) was explored and evaluated for its photocatalytic performance towards CO2. The experimental results showed that TpPa/ZIF-8 exhibited excellent photocatalytic activity, especially in a 10% CO2 environment. The presence of hydroxyl groups in TpPa-1 was found to play a crucial role in enhancing the photoreduction of CO2.

CHEMICAL ENGINEERING JOURNAL (2022)

Review Chemistry, Inorganic & Nuclear

Covalent organic frameworks and their composites as multifunctional photocatalysts for efficient visible-light induced organic transformations

Guang-Bo Wang et al.

Summary: Light-involved catalysis, especially photocatalysis and photothermal catalysis, is a promising alternative to traditional thermocatalysis. Highly efficient photocatalysts are crucial for the development of light-mediated catalysis. Covalent organic frameworks (COFs) are crystalline molecular solids with designable structures, light-harvesting, and semiconducting properties. The recent development of COFs has brought opportunities for visible-light induced organic transformations. This review comprehensively summarizes and discusses the applications of COFs in selective light-initiated organic transformations, provides an overview of COF-based photocatalysts, and discusses the limitations, challenges, and future perspectives of COF photocatalysis and photothermal catalysis.

COORDINATION CHEMISTRY REVIEWS (2022)

Review Chemistry, Physical

Recent advances in metal-organicframework-based catalysts for thermocatalytic selective oxidation of organic substances

Zhenyu Wu et al.

Summary: This review summarizes recent advances in the use of metal-organic frameworks (MOFs) as heterogeneous catalysts for thermocatalytic selective oxidation of organic molecules. The application of different types of materials at different sites is discussed, with a particular emphasis on recent strategies to increase the number of active sites, shape/size selectivity, and long-term stability.

CHEM CATALYSIS (2022)

Article Chemistry, Multidisciplinary

Single-atom substitution in donor-acceptor covalent organic frameworks for tunable visible light photocatalytic Cr(vi) reduction

Jie-Yu Yue et al.

Summary: Se-doped PYE-COF exhibited enhanced photocatalytic performance with 100% reduction ratio of Cr(VI) and at least 5 cycles of recyclability, indicating the potential for high-performance photocatalysts through single-atom substitution in acceptors.

MATERIALS CHEMISTRY FRONTIERS (2022)

Review Chemistry, Multidisciplinary

MOF/COF hybrids as next generation materials for energy and biomedical applications

Cigdem Altintas et al.

Summary: The rapid development of metal organic frameworks and covalent organic frameworks has led to groundbreaking applications in materials science and engineering. The new MOF/COF hybrid materials exhibit excellent properties and offer promising performances in various fields including catalysis, energy storage, gas separation, and nanomedicine.

CRYSTENGCOMM (2022)

Article Chemistry, Multidisciplinary

Semi-hydrogenation of α,β-unsaturated aldehydes over sandwich-structured nanocatalysts prepared by phase transformation of thin-film Al2O3 to Al-TCPP

Bin Chen et al.

Summary: Researchers designed a sandwich-structured nanocatalyst for highly selective hydrogenation of unsaturated aldehydes to unsaturated alcohols. The nanocatalyst consisted of accessible platinum nanoparticles sandwiched between MOF layers. The results showed that the sandwich structure enhanced both selectivity and catalytic activity compared to conventional Pt catalysts.

NANOSCALE (2022)

Article Chemistry, Multidisciplinary

Application of MOFs and COFs for photocatalysis in CO2 reduction, H2 generation, and environmental treatment

Yifeng Zhang et al.

Summary: MOFs and COFs, as important photocatalytic materials, have high physical/chemical stability and structural diversity, and are widely used in CO2 reduction, H2 generation, and environmental pollution treatment. By summarizing the methods and mechanisms to improve their photocatalytic performance, the development of the photocatalysis field is expected to be further promoted.

ENERGYCHEM (2022)

Article Chemistry, Inorganic & Nuclear

Chemical conversion of metal-organic frameworks into hemi-covalent organic frameworks

Xinxin Wang et al.

Summary: Chemical conversion between metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) has been achieved by reacting Ni-3(HITP)(2) with 1,1,3,3-tetramethoxypropane. The resulting P-Ni-3(TAA)(3) exhibits improved chemical stability and enhanced catalytic properties.

INORGANIC CHEMISTRY FRONTIERS (2022)

Article Chemistry, Physical

Boosting photocatalytic hydrogen evolution of covalent organic frameworks by introducing 2D conductive metal-organic frameworks as noble metal-free co-catalysts

Ping Xue et al.

Summary: Covalent organic frameworks (COFs) have attracted significant interest as new photocatalysts for hydrogen evolution. In this study, a series of Tp-Pa-2-COF-based photocatalysts with a noble metal-free co-catalyst Cu-3(HHTP)(2) was successfully prepared. The optimized Tp-Pa-2/Cu-3(HHTP)(2) composite exhibited the highest hydrogen evolution rate under visible-light irradiation, which can be mainly attributed to the porous crystalline Cu-3(HHTP)(2) co-catalyst that efficiently promotes the utilization rate of photogenerated charge-carriers.

CATALYSIS SCIENCE & TECHNOLOGY (2022)

Article Chemistry, Physical

Constructing Synergistic Zn-N4 and Fe-N4O Dual-Sites from the COF@MOF Derived Hollow Carbon for Oxygen Reduction Reaction

Qiyang Miao et al.

Summary: In this study, a synergistic bimetal atomic electrocatalyst based on a core-shell hybrid of COF and MOF is demonstrated, which exhibits high catalytic activity for ORR with highly dense Zn and Fe sites. Operando experiments and DFT calculations confirm the active centers of Zn and Fe sites in the catalyst and demonstrate the synergistic effect to enhance the activity of ORR.

SMALL STRUCTURES (2022)

Article Chemistry, Applied

A new strategy for the fabrication of covalent organic framework-metal-organic framework hybrids via in-situ functionalization of ligands for improved hydrogen evolution reaction activity

Ling-Ling Zheng et al.

Summary: This study presents a novel covalent organic framework-metal-organic framework (COF-MOF) material designed through an in-situ ligand self-assembly method. The material exhibits excellent performance and stability in photocatalytic hydrogen production. The study provides a universal method for the construction of highly efficient and stable COF/MOF materials.

CHINESE JOURNAL OF CATALYSIS (2022)

Article Chemistry, Applied

Synthesis of Co-MOF/COF nanocomposite: application as a powerful and recoverable catalyst in the Knoevenagel reaction

Ensiyeh Rahmati et al.

Summary: The novel mesoporous composite, consisting of cobalt-based metal-organic framework (Co-MOF) and covalent organic framework (COF) based on melamine and terephthaldehyde, exhibited outstanding catalytic performance for Knoevenagel condensation reaction. The recoverability, reusability and durability of Co-MOF/COF have also been investigated under applied conditions.

JOURNAL OF POROUS MATERIALS (2021)

Article Chemistry, Multidisciplinary

An Imine-Linked Metal-Organic Framework as a Reactive Oxygen Species Generator

Xiaomin Li et al.

Summary: A new metal-organic framework (MOF) with both coordination and covalent linkages has been prepared, demonstrating high efficiency in decomposing H2O2 and exciting O-2 to generate reactive oxygen species, showing effective photosensitizing activity.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

A ZIF-triggered rapid polymerization of dopamine renders Co/N-codoped cage-in-cage porous carbon for highly efficient oxygen reduction and evolution

Teng Wang et al.

Summary: In this study, a highly efficient bifunctional electrocatalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) was developed via a simple and cost-effective method involving dopamine polymerization triggered by zeolitic imidazolate framework (ZIF). The resulting Co and N codoped cage-in-cage porous carbon exhibited superior ORR and OER performances, attributed to simultaneous compositional and structural tailoring enabled by the judicious polymer coating.

NANO ENERGY (2021)

Article Nanoscience & Nanotechnology

In Situ Fabrication of Porous MOF/COF Hybrid Photocatalysts for Visible-Light-Driven Hydrogen Evolution

Ping Xue et al.

Summary: This study successfully prepared a series of Cu-3 (HHTP)(2)-MOF/Tp-Pa-1-COF hybrids and demonstrated superior photocatalytic performance, achieving efficient hydrogen evolution under visible light irradiation by promoting charge transfer effectively and inhibiting recombination of photogenerated electron-hole pairs.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Multidisciplinary

Controllable Synthesis of COFs-Based Multicomponent Nanocomposites from Core-Shell to Yolk-Shell and Hollow-Sphere Structure for Artificial Photosynthesis

Mi Zhang et al.

Summary: In this study, a strategy called metal organic framework-sacrificed in situ acid-etching (MSISAE) was developed for the continuous synthesis of COF-based nanocomposites, including core-shell, yolk-shell, and hollow-sphere structures. One of the obtained samples with special three components showed high photocatalytic CO2-to-CO conversion efficiency in the gas-solid mode. This strategy allows for precise morphology design and control of multicomponent hybrid composites based on COFs, potentially leading to the development of porous crystalline materials with powerful superstructures for multifunctional catalytic reactions.

ADVANCED MATERIALS (2021)

Article Chemistry, Multidisciplinary

Nature-Inspired Construction of MOF@COF Nanozyme with Active Sites in Tailored Microenvironment and Pseudopodia-Like Surface for Enhanced Bacterial Inhibition

Lu Zhang et al.

Summary: The study presents a high-efficiency peroxidase mimic MOF@COF nanozyme, utilizing the interaction between MOFs and COFs to achieve enhanced bacterial inhibition.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

Heterometallic Mg@Fe-MIL-101/TpPa-1-COF grown on stainless steel mesh: Enhancing photo-degradation, fluorescent detection and toxicity assessment for tetracycline hydrochloride

Mingrui Yang et al.

Summary: The Mg@Fe-MIL-101/TpPa1-COF porous hybrid, grown on stainless steel mesh via the solvothermal method, exhibits excellent efficiency in removing antibiotic wastewater by optimizing electronic structure and porous property, as well as functioning as a probe for quick detection of TCH and reducing aquatic toxicity of TCH solution.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Review Chemistry, Inorganic & Nuclear

Metal-organic frameworks for photocatalytic detoxification of chromium and uranium in water

Vanish Kumar et al.

Summary: This review highlights the potential of metal-organic framework (MOF)-based materials for the photo-reductive demineralization of heavy and radioactive metal(loid) pollutants. It emphasizes on the recent progress in the development of MOF-based photocatalysts for the reduction of Cr(VI) and U(VI) metal(loid)s in water, focusing on key performance metrics and modification strategies. The optimal performers identified were Zn-MOF/BUC-21@titanate nanotube/Ag@Ag3PO4@MIL-125-NH2 and MOF-derived g-C3N4 nanosheets.

COORDINATION CHEMISTRY REVIEWS (2021)

Article Chemistry, Inorganic & Nuclear

Construction of MOF/COF Hybrids for Boosting Sunlight-Induced Fenton-like Photocatalytic Removal of Organic Pollutants

Xiandi Guo et al.

Summary: By hybridizing NH2-MIL88B metal-organic framework (MOF) material with TpPa-1-COF through covalent bonding and utilizing Fenton-like excitation of H2O2, the photocatalytic activity of the hybrid was significantly enhanced compared to its parent MOF and covalent organic framework (COF). This research demonstrates a facile approach to improving the photocatalytic property of MOF materials by forming hybrids with COFs and utilizing Fenton-like excitation of H2O2.

INORGANIC CHEMISTRY (2021)

Article Multidisciplinary Sciences

MOF-in-COF molecular sieving membrane for selective hydrogen separation

Hongwei Fan et al.

Summary: COFs are promising for separation membranes, but MOF-in-COF membranes show significant enhancement in hydrogen selectivity over other gases.

NATURE COMMUNICATIONS (2021)

Review Chemistry, Physical

Strategies and Challenges on Selectivity of Photocatalytic Oxidation of Organic Substances

Lunqiao Xiong et al.

Summary: This review provides an overview of the fundamentals of reactive oxygen species in photocatalytic organic oxidations and discusses strategies to improve the selectivity of high value chemicals. Difficulties and challenges in developing highly selective oxidation photocatalysts are comprehensively discussed to guide future research focus.

ADVANCED ENERGY MATERIALS (2021)

Review Chemistry, Multidisciplinary

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

Gouri Chakraborty et al.

Summary: Porous layered coordination polymers (CPs) in the field of metal-organic frameworks (MOFs) have gained attention for their modular nature and tunable structures, enabling various applications such as gas adsorption, storage, and catalysis. 2D MOFs are known for their ultrathin nanosheets similar to graphene, making them useful for technological applications.

CHEMICAL REVIEWS (2021)

Review Chemistry, Inorganic & Nuclear

Sparks from different worlds: Collaboration of MOFs and COFs

Ming-Xue Wu et al.

Summary: This review comprehensively introduces the recent development of MOFs-COFs composites, including their syntheses and enhanced applications, highlighting the preparation methods, catalytic performance, and potential applications in adsorption and separation, energy storage, and sensing. The opportunities and challenges faced by MOFs-COFs composites are further discussed, with the aim of inspiring the development of these promising but still emerging materials.

COORDINATION CHEMISTRY REVIEWS (2021)

Article Chemistry, Physical

Computational Identification of Connected MOF@COF Materials

Hyunsoo Park et al.

Summary: A computational screening algorithm was developed to allow heteroepitaxial growth of three-dimensional COFs theoretically using MOFs as substrates. The algorithm detailed the interface of MOF@COF at the atomic/molecular level to create 3D COFs using a bottom-up approach. 19 pairs of MOF@COF were selected as candidates for heteroepitaxial growth of 3D COFs on the surface of MOFs.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Chemistry, Multidisciplinary

Covalent-organic frameworks with keto-enol tautomerism for efficient photocatalytic oxidative coupling of amines to imines under visible light

Zhenyu Wu et al.

Summary: The research demonstrates that COF-TpPa exhibits excellent performance in selective photocatalytic oxidative coupling of amines to imines under visible light irradiation, with the participation of three reactive oxygen species. The keto-enol tautomerism favors the adsorption of benzylamine based on characterization results and theoretical calculations.

SCIENCE CHINA-CHEMISTRY (2021)

Article Chemistry, Physical

Atomic Co-N4 and Co nanoparticles confined in COF@ZIF-67 derived core-shell carbon frameworks: bifunctional non-precious metal catalysts toward the ORR and HER

Minghao Liu et al.

Summary: Constructing heterostructures of covalent organic frameworks (COFs) and metal organic frameworks (MOFs) has gained attention for various applications. The core-shell structured carbon frameworks with high density active sites show bifunctional catalytic performance for ORR and HER. The COF@ZIF(800) exhibits potential in electrochemical energy storage and conversion systems.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Inorganic & Nuclear

Porphyrin- and porphyrinoid-based covalent organic frameworks (COFs): From design, synthesis to applications

Minghui Chen et al.

Summary: COFs are a type of structurally ordered porous materials constructed with light atoms through covalent bonds, with recent interest in tetrapyrrolic macrocycle-based COFs using porphyrin and its analogs as building blocks, showing potential applications in diverse fields.

COORDINATION CHEMISTRY REVIEWS (2021)

Article Chemistry, Applied

Determination of trace bisphenols in functional beverages through the magnetic solid-phase extraction with MOF-COF composite

Hai-Long Jiang et al.

Summary: A novel porous composite (Fe3O4@TAPB-COF@ZIF-8) was developed for magnetic solid-phase extraction (MSPE) of bisphenols, achieving low detection limits, wide linear range, good repeatability, and satisfactory recoveries. The method established by optimizing MSPE in combination with high-performance liquid chromatography is convenient and sensitive for bisphenol analysis.

FOOD CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Fabrication of efficient Zn-MOF/COF catalyst for the Knoevenagel condensation reaction

Zahra Rafiee

Summary: A hybrid material composed of zinc-based metal-organic framework (Zn-MOF) and covalent organic framework (COF) was successfully synthesized and employed as a catalyst for the condensation of aldehydes with malononitrile under solvent-free conditions, leading to high yields of benzylidenemalononitrile derivatives. The catalyst showed exceptional catalytic activity, high recyclability, and easy work-up process for the Knoevenagel condensation reaction.

JOURNAL OF THE IRANIAN CHEMICAL SOCIETY (2021)

Article Chemistry, Multidisciplinary

MOF@POP core-shell architecture as synergetic catalyst for high-efficient CO2 fixation without cocatalyst under mild conditions

Yue Zhang et al.

Summary: A bifunctional MOF@POP core-shell catalyst was reported for efficient CO2 fixation with epoxides without homogeneous cocatalyst, achieving high conversion and easy recyclability. This work provides a feasible direction for high-efficient CO2 fixation without cocatalyst under mild conditions.

JOURNAL OF CO2 UTILIZATION (2021)

Article Nanoscience & Nanotechnology

NH2-UiO-66 Coated with Two-Dimensional Covalent Organic Frameworks: High Stability and Photocatalytic Activity

Yongchao Wang et al.

Summary: The coupling of NH2-UiO-66 with COFs can improve its photocatalytic performance and stability, with high stability in alkaline environment and good photocatalytic H-2 evolution rate.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Physical

Conjugated polymer coated MIL-125(Ti) as an efficient photocatalyst for selective oxidation of benzylic C-H bond under visible light

Zhenyu Wu et al.

Summary: Selective oxidation of saturated C-H bonds to value-added chemicals is important in the chemical community. In this work, conjugated polymer-coated MIL-125(Ti) composites with type I heterojunction structure were prepared for efficient oxidation of benzylic C-H bonds. Through optimization, the photocatalytic activity was enhanced, leading to efficient conversion of fluorene to aldehydes and ketones.

APPLIED SURFACE SCIENCE (2021)

Article Engineering, Environmental

Magnetic amino-functionalized-MOF(M = Fe, Ti, Zr)@COFs with superior biocompatibility: Performance and mechanism on adsorption of azo dyes in soft drinks

Qinzhi Wang et al.

Summary: The study demonstrated the synthesis of Fe3O4@MOF(M = Fe, Ti, Zr)@COFs composites for efficient adsorption of azo dyes in soft drinks. These composites showed high adsorption capacities and good biocompatibility, making them potential effective adsorbents for azo dyes removal.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Yolk-Shell-Structured Covalent Organic Frameworks with Encapsulated Metal-Organic Frameworks for Synergistic Catalysis

Qiang Dang et al.

Summary: Yolk-shell-structured COF@MOF nanocomposites were successfully synthesized through a rational design, with COF as the external shell and MOF as the inner yolk, forming a hollow cavity under specific conditions. The study integrates the structural tunability and functionality of both COFs and MOFs, which can be regulated and optimized by metal ions and organic building blocks.

CHEMISTRY OF MATERIALS (2021)

Article Engineering, Environmental

Zn-based metal organic framework-covalent organic framework composites for trace lead extraction and fluorescence detection of TNP

Wei-Tao Li et al.

Summary: The novel dual functional composite MOFL-TpBD showed excellent Pb2+ ions separation and stable TNP fluorescence detection performance. It exhibited good adsorption capacity, detection limit, precision, and recoveries in practical sample analysis.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Chemistry, Multidisciplinary

Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst

Shaojun Li et al.

Summary: This study introduces a new eco-friendly method for rapid and selective extraction of uranium from aqueous solutions under visible light without solid materials, showing great potential for applications in environmental protection and resource recovery.

SCIENCE CHINA-CHEMISTRY (2021)

Review Chemistry, Physical

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

Xiubing Huang et al.

Summary: Ceria-based catalysts have attracted significant attention in catalytic organic synthesis for their advantages of reversible redox pairs and surface properties, making them effective in achieving efficient organic transformations.

ACS CATALYSIS (2021)

Article Chemistry, Multidisciplinary

Visible-Light-Induced Selective Oxidation of Amines into Imines over UiO-66-NH2@Au@COF Core-Shell Photocatalysts

Kaiyue Zhang et al.

Summary: Efficient and stable UiO-66-NH2@Au@COF core-shell nanocomposites were demonstrated for visible-light-driven aerobic selective oxidation of amines to imines. Introduction of Au and COF not only broadened the visible-light absorption band but also enhanced the separation of photoinduced charge carriers, leading to improved photocatalytic performance. The rational mechanism involving localized surface plasmon resonance effect of nanoparticles was explored to elucidate the photocatalytic reaction process.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

Review Chemistry, Physical

Metal-organic frameworks-derived heteroatom-doped carbon electrocatalysts for oxygen reduction reaction

Wendan Xue et al.

Summary: The development of stable, adequate, and cost-effective catalysts for fuel cells is urgent. Heteroatom-doped carbons and metal-organic frameworks (MOFs) are promising materials for electrocatalytic oxygen reduction reaction (ORR). Component manipulation, morphological control, and structural engineering play important roles in improving the ORR performance of these materials.

NANO ENERGY (2021)

Review Chemistry, Multidisciplinary

Hybrid Porous Crystalline Materials from Metal Organic Frameworks and Covalent Organic Frameworks

Ziman Chen et al.

Summary: MOFs and COFs are two frontier crystalline porous framework materials, each with its own advantages and shortcomings for specific applications. However, combining the complementary properties of the two materials allows for the creation of new classes of hybrid porous crystalline materials with superior properties. The rapid evolution of MOF/COF hybrids since their first report in 2016 has led to diverse applications in various fields.

ADVANCED SCIENCE (2021)

Article Chemistry, Multidisciplinary

Construction of Core-Shell MOF@COF Hybrids with Controllable Morphology Adjustment of COF Shell as a Novel Platform for Photocatalytic Cascade Reactions

Meng-Yao Zhang et al.

Summary: A successful strategy was proposed to enhance the photocatalytic performance by synthesizing Ti-MOF@TpTt hybrids, which demonstrated the potential in improving the photocatalytic ability of MOF@COF hybrid materials.

ADVANCED SCIENCE (2021)

Article Chemistry, Multidisciplinary

Thermo-enhanced photocatalytic oxidation of amines to imines over MIL-125-NH2@Ag@COF hybrids under visible light

Xiangjun Li et al.

Summary: The study successfully synthesized MIL-125-NH-CH2OH@Ag@COF hybrids using thermo-enhanced photocatalysis technology, with the best photocatalytic performance observed at 60 degrees Celsius. The material achieved nearly 100% conversion of benzylamine and demonstrated good stability.

NANOSCALE (2021)

Article Chemistry, Physical

A new strategy for constructing covalently connected MOF@COF core-shell heterostructures for enhanced photocatalytic hydrogen evolution

Hong-Yu Zhang et al.

Summary: A new strategy for constructing covalently linked MOF-COF hybrid materials by post-synthetic modification of metal nodes has been developed in this work, leading to enhanced efficiency of photocatalytic hydrogen evolution.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Materials Science, Multidisciplinary

Integration of metal-organic frameworks and covalent organic frameworks: Design, synthesis, and applications

Yang Li et al.

Summary: Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), which are porous crystalline materials, can be intermeshed into MOF/COF hybrids to enhance performance and extend applications.

MATTER (2021)

Article Chemistry, Physical

Hierarchical confinement of PtZn alloy nanoparticles and single-dispersed Zn atoms on COF@MOF-derived carbon towards efficient oxygen reduction reaction

Yu Guo et al.

Summary: Covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) have been extensively studied for their designable and controllable structures, which can be used in a wide range of applications. A new COF@MOF-derived catalyst with high stability and catalytic activity for oxygen reduction reaction has been successfully synthesized, demonstrating excellent long-term stability.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Chemistry, Multidisciplinary

A 2D porphyrin-based covalent organic framework with TEMPO for cooperative photocatalysis in selective aerobic oxidation of sulfides

Keyu Feng et al.

Summary: 2D covalent organic frameworks (2D COFs) have attracted increasing attention in photocatalysis, and combining them with redox mediators can significantly enhance the catalytic efficiency, leading to a cooperative photocatalysis process. This study highlights the potential of 2D COFs as a unique platform for constructing cooperative photocatalysts with redox mediators.

MATERIALS CHEMISTRY FRONTIERS (2021)

Article Chemistry, Multidisciplinary

Hybridization of MOFs and ionic POFs: a new strategy for the construction of bifunctional catalysts for CO2 cycloaddition

Kang Liu et al.

Summary: A new strategy has been developed to construct a bifunctional catalyst for CO2 cycloaddition by post-synthetically modifying CUS-based metal-organic frameworks (MOFs) with ionic porous organic frameworks (POFs) to form MOF@iPOF core-shell hybrid materials. The newly synthesized Cu-3(BTC)(2)@iPOF-TB-Br- and Cu-3(BTC)(2)@iPOF-TM-Br- exhibit excellent catalytic performance for CO2 cycloaddition under mild conditions and maintain the porosity of hybrid materials for improving mass transfer rate and catalytic efficiency.

GREEN CHEMISTRY (2021)

Review Chemistry, Multidisciplinary

Recent advances of hierarchically porous bifunctional oxygen electrocatalysts derived from metal-organic frameworks for Zn-air batteries

Zihan Meng et al.

Summary: This review discusses the latest developments of hierarchically porous ORR/OER electrocatalysts derived from MOFs for Zn-air batteries, emphasizing the importance of rational design of multiscale transport channels. It introduces the application of hierarchically porous MOF derivatives in oxygen reduction/evolution reactions and Zn-air batteries.

MATERIALS CHEMISTRY FRONTIERS (2021)

Review Chemistry, Multidisciplinary

2D metal-organic framework-based materials for electrocatalytic, photocatalytic and thermocatalytic applications

Yanpeng Xue et al.

Summary: Ultrathin two-dimensional metal-organic frameworks (2D MOFs) have garnered significant interest in catalytic fields due to their thin thickness, large surface area, accessible active sites, and tunable properties. Research is currently focused on developing more stable and conductive materials to enhance their activity. The superior properties and catalytic performance of 2D MOFs, their hybrids, and derivatives compared to 3D MOFs have been highlighted in electrocatalysis, photocatalysis, and thermocatalysis.

NANOSCALE (2021)

Review Chemistry, Physical

Strategies for boosting carbon electrocatalysts for the oxygen reduction reaction in non-aqueous metal-air battery systems

Weijie Li et al.

Summary: Carbon-based materials as ORR catalysts in non-aqueous electrolyte offer unique advantages, with research content covering ORR mechanism, performance modulation strategies, challenges, and solutions.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Multidisciplinary

Green synthesis of covalent organic frameworks based on reaction media

Yan Chen et al.

Summary: The synthesis of COFs has traditionally relied on the solvothermal method using a large amount of organic solvents, but there is a growing interest in green synthesis methods. This Feature Article summarizes the green COF synthesis strategies that aim to reduce or avoid the use of organic solvents and facilitate large-scale synthesis, discussing basic operations, yields, key factors, product qualities, advantageous applications, and limitations.

MATERIALS CHEMISTRY FRONTIERS (2021)

Review Chemistry, Multidisciplinary

Operando spectroscopy of nanoscopic metal/covalent organic framework electrocatalysts

Nikolay Kornienko

Summary: Metal and covalent organic frameworks (MOFs and COFs) are showing great potential in electrocatalytic systems, with operando spectroscopy increasingly used to gain insights into their function and performance.

NANOSCALE (2021)

Article Nanoscience & Nanotechnology

Palladium Nanoclusters Confined in MOF@COP as a Novel Nanoreactor for Catalytic Hydrogenation

Yangyang Zhu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Article Chemistry, Multidisciplinary

Fast and Selective Semihydrogenation of Alkynes by Palladium Nanoparticles Sandwiched in Metal-Organic Frameworks

Kwanghak Choe et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Nanoscience & Nanotechnology

MOF@COFs with Strong Multiemission for Differentiation and Ratiometric Fluorescence Detection

Xin-Yao Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Article Nanoscience & Nanotechnology

Hydrophobic MOFs@Metal Nanoparticles@COFs for Interfacially Confined Photocatalysis with High Efficiency

Dengrong Sun et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Article Chemistry, Multidisciplinary

Synthesis of Robust MOFs@COFs Porous Hybrid Materials via an Aza-Diels-Alder Reaction: Towards High-Performance Supercapacitor Materials

Haijun Peng et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Chemistry, Inorganic & Nuclear

Photocatalytic CO2 reduction over metal-organic framework-based materials

Dandan Li et al.

COORDINATION CHEMISTRY REVIEWS (2020)

Article Multidisciplinary Sciences

Understanding the diversity of the metal-organic framework ecosystem

Seyed Mohamad Moosavi et al.

NATURE COMMUNICATIONS (2020)

Article Chemistry, Multidisciplinary

Regulating Photocatalysis by Spin-State Manipulation of Cobalt in Covalent Organic Frameworks

Yun-Nan Gong et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

Article Chemistry, Physical

Review of recent research work on CeO2-based electrocatalysts in liquid-phase electrolytes

Guilong Lu et al.

JOURNAL OF POWER SOURCES (2020)

Article Chemistry, Multidisciplinary

Construction of a Sandwiched MOF@COF Composite as a Size-Selective Catalyst

Weiqiang Zhou et al.

CELL REPORTS PHYSICAL SCIENCE (2020)

Review Chemistry, Multidisciplinary

Porous organic polymers: a promising platform for efficient photocatalysis

Ting Zhang et al.

MATERIALS CHEMISTRY FRONTIERS (2020)

Article Engineering, Chemical

Mixed matrix membranes containing MOF@COF hybrid fillers for efficient CO2/CH4 separation

Youdong Cheng et al.

JOURNAL OF MEMBRANE SCIENCE (2019)

Article Chemistry, Multidisciplinary

A MOF@COF Composite with Enhanced Uptake through Interfacial Pore Generation

Luis Garzon-Tovar et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Materials Science, Multidisciplinary

Design and synthesis of La3+-, Sb3+-doped MOF-In2S3@FcDc-TAPT COFs hybrid materials with enhanced photocatalytic activity

Ren He et al.

JOURNAL OF MATERIALS SCIENCE (2019)

Article Chemistry, Multidisciplinary

Increasing topological diversity during computational synthesis of porous crystals: how and why

Ryther Anderson et al.

CRYSTENGCOMM (2019)

Article Chemistry, Multidisciplinary

Rational Design of MOF/COF Hybrid Materials for Photocatalytic H2 Evolution in the Presence of Sacrificial Electron Donors

Feng-Ming Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Inorganic & Nuclear

Robust Bifunctional Core-Shell MOF@POP Catalyst for One-Pot Tandem Reaction

Mei-Hong Qi et al.

INORGANIC CHEMISTRY (2018)

Article Chemistry, Multidisciplinary

Hybridization of MOFs and COFs: A New Strategy for Construction of MOF@COF Core-Shell Hybrid Materials

Yongwu Peng et al.

ADVANCED MATERIALS (2018)

Article Nanoscience & Nanotechnology

Nanoparticle-Directed Metal Organic Framework/Porous Organic Polymer Monolithic Supports for Flow-Based Applications

Maria del Mar Darder et al.

ACS APPLIED MATERIALS & INTERFACES (2017)

Review Chemistry, Inorganic & Nuclear

Application of metal and metal oxide nanoparticles@MOFs

Paolo Falcaro et al.

COORDINATION CHEMISTRY REVIEWS (2016)

Article Chemistry, Multidisciplinary

Fabrication of COF-MOF Composite Membranes and Their Highly Selective Separation of H2/CO2

Jingru Fu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

Article Multidisciplinary Sciences

Metal-organic frameworks as selectivity regulators for hydrogenation reactions

Meiting Zhao et al.

NATURE (2016)

Article Multidisciplinary Sciences

Porous, crystalline, covalent organic frameworks

AP Côté et al.

SCIENCE (2005)