4.8 Article

Conductive metal-covalent organic frameworks as novel catalytic platforms for reduction of nitrate to ammonia

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Fully-Conjugated Covalent Organic Frameworks with Two Metal Sites for Oxygen Electrocatalysis and Zn-Air Battery

Jiawen Li et al.

Summary: In this research, a novel conductive metal-covalent organic framework (M-COFs) with two types of metal active sites was synthesized using a solvothermal method. The M-COFs showed excellent catalytic activity in the oxygen reduction reaction (ORR) and exhibited superior conductivity for electron transfer. The constructed Zn-air battery using M-COFs demonstrated high power density and great cycling stability, surpassing the performance of a commonly used platinum-based catalyst. This work not only presents a novel design concept for electrocatalysts, but also establishes a mechanism platform for single-metal atom electrocatalysis and synergistic effect.

ADVANCED SCIENCE (2023)

Article Chemistry, Multidisciplinary

3.4% Solar-to-Ammonia Efficiency from Nitrate Using Fe Single Atomic Catalyst Supported on MoS2 Nanosheets

Ji Li et al.

Summary: This study presents a novel heterogeneous catalyst based on Fe single-atoms supported on MoS2 for nitrate reduction, showing superior performance and high efficiency in NH3 synthesis. Coupling the catalyst with a solar cell demonstrates high efficiency in converting solar energy to ammonia.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Boosting nitrate electroreduction to ammonia on NbOxvia constructing oxygen vacancies

Xuefei Wan et al.

Summary: The first work on nitrate electroreduction to NH3 over Nb oxides was conducted using NbOx with oxygen vacancies (OVs). It was found that NbOx is a robust non-precious metal catalyst for NH3 synthesis, achieving a faradaic efficiency of 94.5% and an NH3 formation rate of 55.0 μg h(-1) mg(cat)(-1) in a neutral electrolyte. The excellent performance of NbOx is attributed to the intrinsic properties of Nb oxides and the presence of OVs in the catalyst.

GREEN CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Structurally Disordered RuO2 Nanosheets with Rich Oxygen Vacancies for Enhanced Nitrate Electroreduction to Ammonia

Yuting Wang et al.

Summary: Carbon-supported RuO2 nanosheets with adjustable crystallinity show high efficiency and selectivity in nitrate reduction to ammonia, outperforming crystalline counterparts.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Article Chemistry, Physical

High capacity and long-life aqueous zinc-ion battery enabled by improving active sites utilization and protons insertion in polymer cathode

Zhiheng Li et al.

Summary: Rechargeable aqueous zinc-ion batteries using the graphene/aza-fused pi-conjugated microporous polymer composite (G-Aza-CMP) cathode exhibit an ultrahigh theoretical capacity of 602 mAh g(-1). The introduction of graphene enhances the coordination between Aza-CMP and H+/Zn2+ ions, increases the storage of H+ ions for faster kinetics, and enables a redox pseudocapacitance mechanism. The G-Aza-CMP cathode demonstrates an extraordinary specific capacity of 456 mAh g(-1) at 0.05 A g(-1) and excellent cycling stability with 91.2% capacity retention after 9700 cycles at 10 A g(-1). This study provides new insights into the charge storage mechanism and design of high-capacity polymer cathode materials for aqueous zinc-ion batteries.

ENERGY STORAGE MATERIALS (2022)

Article Chemistry, Multidisciplinary

Greatly enhanced electrochemical nitrate-to-ammonia conversion over an Fe-doped TiO2 nanoribbon array

Jie Chen et al.

Summary: Fe doping on TiO2 nanoribbon array supported catalyst greatly enhances the electrocatalytic NO3- to NH3 conversion, achieving a high NH3 yield and faradaic efficiency under alkaline conditions. Theoretical calculations show that Fe doping improves electronic conductivity of TiO2 and optimizes adsorption of reactive species on its surface.

GREEN CHEMISTRY (2022)

Article Chemistry, Physical

Vanadium defect-engineering in molybdenum disulfide for electrochemical nitrate reduction

Miao Yu et al.

Summary: Bio-inspired metalloenzymes MoS2 nanoflowers with defect engineering via vanadium doping exhibit remarkable electrochemical nitrate reduction reaction capability.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Editorial Material Chemistry, Physical

Electrocatalytic Nitrate Reduction for Sustainable Ammonia Production

Phebe H. van Langevelde et al.

Summary: Phebe van Langevelde, Ioannis Katsounaros, and Marc Koper are renowned researchers in the field of electrocatalysis and renewable energy. Their research interests span from fundamental aspects of electrocatalysis to physical electrochemistry and theoretical electrochemistry. They have received various national and international awards for their contributions to the field.

JOULE (2021)

Article Chemistry, Physical

Influence of Carbon Content in Ni-Doped Mo2C Catalysts on CO Hydrogenation to Mixed Alcohol

Zhenjiong Hao et al.

Summary: Nickel-doped Mo2C catalysts were synthesized using a one-pot preparation method to study the effect of carbon atoms in the lattice on CO hydrogenation to mixed alcohol. Nickel doping increased the active surface area of Mo2C, promoted non-dissociative adsorption of CO, and enhanced mixed alcohol selectivity. With increasing nickel content, a volcano-type variation in the number of carbon atoms in the Mo2C lattice on the surface of the catalyst was observed.

CATALYSTS (2021)

Article Chemistry, Multidisciplinary

Efficient Nitrogen Fixation to Ammonia through Integration of Plasma Oxidation with Electrocatalytic Reduction

Laiquan Li et al.

Summary: The process of converting N-2 to NH3 can be decoupled into a two-step process for efficient and selective ammonia production, utilizing air and water as low-cost raw materials. Surface boron-rich nickel boride electrocatalyst plays a key role in enhancing activity, selectivity, and stability, resulting in significant ammonia production with nearly 100% Faradaic efficiency.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

Ammonia and Nitric Acid Demands for Fertilizer Use in 2050

Jeonghoon Lim et al.

Summary: Access to nitrogen-based fertilizers is crucial for maximizing agricultural yield, but the production process contributes significantly to carbon emissions. The market size and value of ammonia and nitric acid will be heavily influenced by the growing global population and food demand over the next three decades. Developing carbon-free technologies for nitrogen and nitrate reduction to meet fertilizer manufacturing demands is essential to address the environmental impact of current production methods.

ACS ENERGY LETTERS (2021)

Article Chemistry, Multidisciplinary

Boosting NH3 production from nitrate electroreduction via electronic structure engineering of Fe3C nanoflakes

Yuanyuan Wang et al.

Summary: This study demonstrates that N-doped carbon nanosheets supported Fe3C nanoflakes exhibit excellent NO3RR performance, mainly due to their optimized electronic structures that enhance nitrate adsorption and reaction kinetics. Mechanistic investigations reveal a reaction pathway of NO3- -> NO2- -> NH3.

GREEN CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Schiff-base molecules and COFs as metal-free catalysts or silver supports for carboxylation of alkynes with CO2

Lin Zhang et al.

Summary: This article demonstrated the effectiveness of transition-metal-free organocatalysts for the carboxylation of terminal alkynes with CO2. The catalysts, derived from Tp, showed potential for CO2 conversion reactions.

GREEN CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

High-efficiency electrochemical nitrite reduction to ammonium using a Cu3P nanowire array under ambient conditions

Jie Liang et al.

Summary: The study introduces a Cu3P nanowire array supported on copper foam as an efficient electrocatalyst for nitrite-to-ammonium conversion in neutral media. This catalyst demonstrates high ammonium yield rates, Faradaic efficiencies, and stability.

GREEN CHEMISTRY (2021)

Review Chemistry, Multidisciplinary

Nitrate electroreduction: mechanism insight, in situ characterization, performance evaluation, and challenges

Yuting Wang et al.

Summary: Excessive nitrate ions in the environment pose a significant threat to human health by disrupting the natural nitrogen cycle. Nitrate electroreduction, utilizing green electrons as reductants, shows promise due to its ability to operate under ambient conditions. Understanding the nitrate reaction mechanism is crucial for designing efficient electrocatalysts for selective nitrate reduction.

CHEMICAL SOCIETY REVIEWS (2021)

Article Chemistry, Multidisciplinary

Direct Electrochemical Ammonia Synthesis from Nitric Oxide

Jun Long et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Chemistry, Multidisciplinary

Metal-Covalent Organic Frameworks (MCOFs): A Bridge Between Metal-Organic Frameworks and Covalent Organic Frameworks

Jinqiao Dong et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Chemistry, Physical

A Roadmap to the Ammonia Economy

Douglas R. MacFarlane et al.

JOULE (2020)

Article Chemistry, Multidisciplinary

Surface Plasmon Enabling Nitrogen Fixation in Pure Water through a Dissociative Mechanism under Mild Conditions

Canyu Hu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Review Chemistry, Physical

Atomic-Local Environments of Single-Atom Catalysts: Synthesis, Electronic Structure, and Activity

Wei-Hong Lai et al.

ADVANCED ENERGY MATERIALS (2019)

Review Chemistry, Multidisciplinary

Electrochemical nitrogen fixation and utilization: theories, advanced catalyst materials and system design

Wenhan Guo et al.

CHEMICAL SOCIETY REVIEWS (2019)

Article Chemistry, Physical

Single-atom catalysts templated by metal-organic frameworks for electrochemical nitrogen reduction

Rui Zhang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

Article Chemistry, Multidisciplinary

Van der Waals Heterostructures Comprised of Ultrathin Polymer Nanosheets for Efficient Z-Scheme Overall Water Splitting

Lei Wang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Review Chemistry, Multidisciplinary

Topochemical synthesis of 2D materials

Xu Xiao et al.

CHEMICAL SOCIETY REVIEWS (2018)

Article Chemistry, Physical

Salt-templated synthesis of defect-rich MoN nanosheets for boosted hydrogen evolution reaction

Jie Xiong et al.

JOURNAL OF MATERIALS CHEMISTRY A (2017)

Review Chemistry, Multidisciplinary

Single-Atom Electrocatalysts

Chengzhou Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

Article Chemistry, Multidisciplinary

Salt-Templated Synthesis of 2D Metallic MoN and Other Nitrides

Xu Xiao et al.

ACS NANO (2017)

Article Multidisciplinary Sciences

Scalable salt-templated synthesis of two-dimensional transition metal oxides

Xu Xiao et al.

NATURE COMMUNICATIONS (2016)

Review Chemistry, Multidisciplinary

Nitrogen Cycle Electrocatalysis

Victor Rosca et al.

CHEMICAL REVIEWS (2009)