Embedding Metal-Organic Frameworks for the Design of Flexible Hybrid Supercapacitors by Electrospinning: Synthesis of Highly Graphitized Carbon Nanofibers Containing Metal Oxide Nanoparticles

Article Nanoscience & Nanotechnology

Sandwich-like MXene/α-Fe2O3-C-MoS2-PEDOT:PSS/MXene Film Electrodes with Ultrahigh Area Capacitance for Flexible Supercapacitors

Chenglong Li et al.

Summary: This study significantly increases the area capacitance of MXene films by introducing FMP and designs a reasonable sandwich structure electrode, showing breakthrough performance in high energy density.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Review Chemistry, Multidisciplinary

Electrospun carbon nanofibers for lithium metal anodes: Progress and perspectives

Hongyang Chen et al.

Summary: Li metal anodes have high theoretical capacity but suffer from dendritic growth and volume change. Electrospun carbon nanofibers (CNFs) have been explored as promising scaffolds to inhibit dendrite growth and accommodate volume change.

CHINESE CHEMICAL LETTERS (2022)

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Article Engineering, Environmental

High performance NiCo-LDH//Fe2O3 asymmetric supercapacitors based on binder-free electrodes with dual conductive networks

Shunhua Jiang et al.

Summary: By designing freestanding and binder-free electrodes with dual conductive networks, using hollow and porous carbon nanofiber cloth and ultrathin graphene layer as the inner and outer conductive layers, the electronic conductivity, electroactive reaction sites, structural stability, and kinetics of asymmetric supercapacitors (ASCs) can be improved. This design enhances the rate capability and cyclic stability of ASCs.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Ultrafast flashlight sintered mesoporous NiO nanosheets for stable asymmetric supercapacitors

Rohan B. Ambade et al.

Summary: Ultrafast flashlight sintering (FLS) was used to fabricate mesoporous ultrathin NiO nanosheets on carbon cloth (CC) as green electrodes for flexible supercapacitors (SCs). The FLS-NiO@i12J electrodes exhibited remarkable specific capacity and outperformed conventional thermally annealed (CTA) NiO electrodes. The flexible FLS-NiO@i12J//rGO asymmetric SCs showed remarkable energy density and cycling stability.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Boosting the energy density of supercapacitors by designing both hollow NiO nanoparticles/nitrogen-doped carbon cathode and nitrogen-doped carbon anode from the same precursor

Chen Huang et al.

Summary: In this study, a hollow NiO/NC electrode material with high electrical conductivity and adsorption energy for OH- was successfully synthesized using the precursor of Ni-based metal-organic complex based on the Kirkendall effect. It showed a high specific capacitance and excellent cycle stability, making it a promising candidate for supercapacitor applications.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Multidisciplinary

Metal-Organic Framework-Derived Graphene Mesh: a Robust Scaffold for Highly Exposed Fe-N4 Active Sites toward an Excellent Oxygen Reduction Catalyst in Acid Media

Jingjing Li et al.

Summary: This study demonstrates the use of a special ultrathin nitrogen-doped graphene nanomesh as a scaffold for highly exposed Fe-N-4 active sites. By adjusting the pore sizes of the nanomesh, highly loaded single-atom catalysts can be synthesized, which exhibit superior performance in oxygen reduction reactions and fuel cell tests. This work provides a novel strategy for constructing highly exposed transition metals and nitrogen co-doped carbon materials catalysts.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Physical

MOF-on-MOF nanoarchitectures for selectively functionalized nitrogen-doped carbon-graphitic carbon/carbon nanotubes heterostructure with high capacitive deionization performance

Ying Zhang et al.

Summary: In this study, a nitrogen-doped carbon heterostructure with well-designed functionalities was synthesized through the use of a MOF-on-MOF nanoarchitecture. The resulting material exhibited high salt adsorption capacity, rapid adsorption rate, and excellent cycling stability, highlighting the significance of carbon-carbon heterostructures in CDI applications and the importance of MOF-on-MOF nanoarchitectures in nanomaterials synthesis chemistry.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Heterointerface optimization in a covalent organic framework-on-MXene for high-performance capacitive deionization of oxygenated saline water

Shuaihua Zhang et al.

Summary: This study reports a covalent organic framework (COF)-on-MXene heterostructure with heterointerface optimization for high-performance capacitive deionization (CDI) of natural (oxygenated) saline water. The heterostructure inherits the excellent properties of MXene and COF, exhibiting stable cycling performance and high salt adsorption capacity.

MATERIALS HORIZONS (2022)

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Article Chemistry, Multidisciplinary

Two-Dimensional MXene-Polymer Heterostructure with Ordered In-Plane Mesochannels for High-Performance Capacitive Deionization

Qian Li et al.

Summary: The study introduces a novel 2D Ti3C2Tx MXene-polydopamine heterostructure with ordered in-plane mesochannels, which exhibits high-performance characteristics as an electrode material for capacitive deionization (CDI).

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

General fabrication of metal-organic frameworks on electrospun modified carbon nanofibers for high-performance asymmetric supercapacitors

Di Tian et al.

Summary: By utilizing a facile method, Ni-MOFs are prepared with Co nanoparticles modified CNFs, showing excellent electrochemical properties and great potential in supercapacitor applications.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Pulverizing Fe2O3 Nanoparticles for Developing Fe3C/N-Codoped Carbon Nanoboxes with Multiple Polysulfide Anchoring and Converting Activity in Li-S Batteries

Changyu Zhou et al.

Summary: The designed Fe3C/NC carbon nanoboxes exhibit multiple polysulfide anchoring and catalytic conversion activities to suppress the shuttle effect of sulfur, facilitate fast electron transfer, and enhance lithium ion diffusion, leading to improved performance of lithium-sulfur batteries.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

Nickel metal-organic framework (Ni-MOF) derived NiO/C@CNF composite for the application of high performance self-standing supercapacitor electrode

Seoyoon Shin et al.

Summary: The proposed nickel oxide-carbon composite shows potential as a promising electrode material for supercapacitors, with high specific capacitances and rate capability observed in a self-standing electrode structure.

APPLIED SURFACE SCIENCE (2021)

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Article Chemistry, Physical

Polyacrylonitrile (PAN) based electrospun carbon nanofibers (ECNFs): Probing the synergistic effects of creep assisted stabilization and CNTs addition on graphitization and low dimensional electrical transport

A. B. Ali et al.

Summary: This study investigated the fabrication and characterization of PAN-based ECNF reinforced with MWCNTs, as well as the graphitic structure and electrical transport properties of four different ECNF systems. The addition of CNTs improved the graphitic structure of PAN, but the application of creep stress during cyclization resulted in reduced alignment of graphene planes and conductivity in the PAN/CNT system. The findings suggest that electrical transport in carbon nanofibers is a cumulative effect of hopping and band transport along chemically and structurally inhomogeneous ECNFs.

CARBON (2021)

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Article Chemistry, Physical

Core-Shell MOF@COF Motif Hybridization: Selectively Functionalized Precursors for Titanium Dioxide Nanoparticle-Embedded Nitrogen-Rich Carbon Architectures with Superior Capacitive Deionization Performance

Xiaohong Liu et al.

Summary: The directed core-shell motif hybridization of COFs on MOFs results in selectively functionalized carbonaceous precursors, TiO2@COF, with titanium dioxide nanoparticles in the inner core and nitrogen-rich carbon in the outer shell. This design provides abundant faradic active sites and nitrogen dopants, as well as favorable cycling stability and enhanced pseudocapacitive capacity. Additionally, the interconnected COF-derived fibers contribute to increasing electrical conductivity of the material, leading to a high salt adsorption capacity and favorable cycling stability for CDI electrodes.

CHEMISTRY OF MATERIALS (2021)

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Article Engineering, Environmental

Direct Z-scheme CuInS2/Bi2MoO6 heterostructure for enhanced photocatalytic degradation of tetracycline under visible light

Jingru Guo et al.

Summary: The construction of a Z-scheme CuInS2/Bi2MoO6 heterostructure via in-situ hydrothermal reactions resulted in superior photocatalytic activity towards the degradation of tetracycline under visible light, with 8 and 2.5 times improvements compared to their individual components. The enhanced photocatalytic performance is mainly attributed to effective charge transfer at the interface and the ternary sulfide semiconductor absorbing light in the useful region of the solar spectrum.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Spectroscopy

Laser-induced phonon and magnon properties of NiO nanoparticles: A Raman study

Anoop Sunny et al.

Summary: The influence of laser intensity on phonon and magnon properties of nickel oxide nanoparticles was extensively studied in this research using room temperature Raman spectroscopy. The NiO nanoparticles were synthesized using a simple sol-gel method and their structural and morphological properties were characterized using various techniques. The surface optical phonon modes of NiO nanoparticles were observed and studied, showing a mismatch between experimental and DC model SO phonon wavenumbers due to magnon-induced phonon shift.

JOURNAL OF RAMAN SPECTROSCOPY (2021)

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Article Engineering, Chemical

Highly efficient water desalination by capacitive deionization on biomass-derived porous carbon nanoflakes

Ting Lu et al.

Summary: Capacitive deionization (CDI) utilizes the electrical double layer to separate ions from saline water. There is growing interest in using low-cost, eco-friendly carbon materials derived from abundant biomass for CDI. Carbon nanoflakes prepared from xylose pyrolysis with KHCO3 show promising salt adsorption capacity, indicating potential industrial application for CDI.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

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Review Chemistry, Applied

Carbon-containing electrospun nanofibers for lithium-sulfur battery: Current status and future directions

Zhaoming Tong et al.

Summary: Carbon-containing electrospun nanofibers (CENFs) exhibit superior characteristics in solving issues such as low conductivity of sulfur species, lithium dendrites, shuttle effect of polysulfides and LiPSs/Li2S conversion, showing great potential for application in lithium-sulfur batteries.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Chemistry, Physical

Chemically-confined mesoporous ?-Fe2O3 nanospheres with Ti3C2Tx MXene via alkali treatment for enhanced lithium storage

Junmei Liang et al.

Summary: The Fe2O3@Ti3C2Tx composite prepared by alkali treatment exhibits extremely high reversible capacity and excellent cycle stability in high-performance lithium-ion batteries.

JOURNAL OF POWER SOURCES (2021)

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Article Chemistry, Multidisciplinary

Fabrication of 3D ordered needle-like polyaniline@hollow carbon nanofibers composites for flexible supercapacitors

Xuepeng Ni et al.

Summary: Flexible HCNFs/PANI composites were prepared with high capacity and good cycling stability, showing outstanding electrochemical performance in supercapacitors and potential applications in flexible energy storage devices.

CHINESE CHEMICAL LETTERS (2021)

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Article Electrochemistry

Polypyrrole-encapsulated Fe2O3 nanotube arrays on a carbon cloth support: Achieving synergistic effect for enhanced supercapacitor performance

Yuan Wang et al.

Summary: This study successfully designed and prepared Fe2O3-based nanocomposite anodes for supercapacitors, with high specific capacitance and cycling stability. The surface encapsulation of PPy effectively enhanced the pseudocapacitive performance of Fe2O3. Additionally, the interface between Fe2O3 and PPy constructed more stable Na+ storage sites, significantly enhancing the capacitance energy storage capacity. By interacting with conductive polymers, faster ion transfer, more surface charge storage, and higher structural stability were achieved.

ELECTROCHIMICA ACTA (2021)

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Article Electrochemistry

Sea urchin-shaped Fe2O3 coupled with 2D MXene nanosheets as negative electrode for high-performance asymmetric supercapacitors

Tian-Zhu Shi et al.

Summary: In this study, sea urchin-like 3D Fe2O3 was successfully synthesized via hydrothermal methods, and then assembled with high conductivity 2D Ti2C3Tx MXene nanosheets to enhance electron transport rate. The sea urchin-like structure facilitates rapid electrolyte diffusion and accelerates faradaic reaction, resulting in optimized Fe2O3/MXene composite with high specific capacitance and cycling stability as electrode material for high-performance SCs.

ELECTROCHIMICA ACTA (2021)

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Article Engineering, Environmental

Fe3C-porous carbon derived from Fe2O3 loaded MOF-74(Zn) for the removal of high concentration BPA: The integrations of adsorptive/catalytic synergies and radical/non-radical mechanisms

Lu Gan et al.

Summary: Novel Fe3C-porous carbon composites showed excellent catalytic capability for bisphenol A (BPA) removal, with Fe3C-C1000 completely removing 0.1 mM BPA within 10 minutes. The Fe3C-C/PMS system was found to activate PMS via radical and non-radical mechanisms, leading to rapid BPA degradation. This study provides new insights for the design of catalysts for the removal of refractory organic contaminants with high concentrations in water.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Chemistry, Physical

Amorphous carbon/graphite coupled polyhedral microframe with fast electronic channel and enhanced ion storage for potassium ion batteries

Bo Wang et al.

Summary: The N-doped amorphous carbon/graphite coupled polyhedral microframe (NCM) serves as an advanced anode for potassium-ion batteries (KIBs), offering improved rate, capacity, and stability with high reversible capacity, outstanding rate property, and superb cycling performance. The electrode also demonstrates large energy density and good cycling stability when assembled into a K-ion full cell with potassium Prussian blue (KPB).

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Multidisciplinary

A reinforced concrete structure rGO/CNTs/Fe2O3/PEDOT:PSS paper electrode with excellent wettability and flexibility for supercapacitors

Jia Song et al.

Summary: The design and preparation of a reduced graphene oxide paper electrode with a reinforced concrete structure is an effective strategy to improve the mechanical properties of flexible electrodes. By adding PEDOT:PSS, CNTs, and Fe2O3 nanoparticles, a flexible hydrophilic paper electrode with excellent electrochemical performance was successfully prepared.

NEW JOURNAL OF CHEMISTRY (2021)

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Article Chemistry, Multidisciplinary

Graphene-carbon 2D heterostructures with hierarchically-porous P,N-doped layered architecture for capacitive deionization

Jingru Guo et al.

Summary: Through the assembly of metal-organic framework nanoparticles, a hierarchically porous N,P-doped carbon-graphene 2D heterostructure (NPC/rGO) with outstanding deionization performance was fabricated, exhibiting superior performance compared to the commercial benchmark and most previously reported carbon materials in capacitive deionization applications.

CHEMICAL SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Carbon-incorporated Fe3O4 nanoflakes: high-performance faradaic materials for hybrid capacitive deionization and supercapacitors

Lei Chen et al.

Summary: A new synthesis strategy using urea to create carbon-incorporated 2D Fe3O4 nanoflakes under solvothermal conditions has been developed, showing high specific capacitance and energy density. The structural advantages and carbon incorporation enable faster charge transfer, making it suitable for high-performance capacitive applications in supercapacitors and desalination.

MATERIALS CHEMISTRY FRONTIERS (2021)

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Article Chemistry, Multidisciplinary

High-Conductivity-Dispersibility Graphene Made by Catalytic Exfoliation of Graphite for Lithium-Ion Battery

Ran Tao et al.

Summary: Catalytic exfoliation of graphite enables the synthesis of graphene with large lateral size, high conductivity, and excellent water solubility. This high-conductivity-dispersibility graphene can be used broadly for applications such as lithium ion batteries, leading to significantly improved cycling stability and rate performance of electrodes.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

Rational design of novel ultra-small amorphous Fe2O3 nanodots/graphene heterostructures for all-solid-state asymmetric supercapacitors

Chenxiao Wu et al.

Summary: Constructing graphene-based heterostructures with large interfacial area is an efficient approach to enhance the electrochemical performance of supercapacitors, but still faces great challenges in synthesis. The a-Fe2O3 NDs/RGO heterostructure offers a highly interconnected porous conductive network, large heterostructure interfacial area, and plenty of accessible active sites, greatly facilitating electron transfer, electrolyte diffusion, and pseudocapacitive reactions.

NANO RESEARCH (2021)

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Article Engineering, Environmental