Indium oxide with oxygen vacancies boosts O2 adsorption and activation for electrocatalytic H2O2 production

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(70), P. 9364 - 9367

Published: Jan. 1, 2024

Oxygen reduction reaction

Language: Английский

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Electrochemical CO2 reduction of graphene single-atom/cluster catalysts

Molecular Catalysis, Journal Year: 2024, Volume and Issue: 562, P. 114225 - 114225

Published: May 16, 2024

Language: Английский

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Interfacial modulation of Ru catalysts using B, N co-doped porous carbon-confined MoC quantum dots for enhanced hydrogen evolution reaction performance

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(30), P. 19462 - 19469

Published: Jan. 1, 2024

B, N-doped porous carbon confined MoC quantum dots were engineered as a facile carrier and electronic stimulator to confine Ru clusters for high-performance hydrogen evolution reaction.

Language: Английский

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Boosting the built-in electric field in heterojunctions of 2D and 3D systems to accelerate the separation and transfer of photogenerated carriers for efficient photocatalysis

FlatChem, Journal Year: 2024, Volume and Issue: 47, P. 100718 - 100718

Published: July 26, 2024

Language: Английский

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Fe and Sn Single-Site-Based Electrodes for High-Current CO₂ Reduction in Acid Media and Stable Zn–CO₂ Batteries

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Electrocatalytic CO2 conversion is a promising method for reducing the dependence on fossil fuels and lowering emissions. However, challenges such as suppression of competing hydrogen evolution reaction (HER) long-term stability, especially in acidic media, among others, hinder its industrial application. Herein, Fe Sn single sites supported an N-doped carbon support (FSNC) was prepared by direct pyrolysis selected precursors. XANES EXAFS measurements confirmed presence atoms coordinated to N or O carbon. An analogous material synthesized deposition precursors previously fabricated matrix (FS/NC), followed thermal reduction, rendered Fe–O small clusters atoms. FSNC tested obtaining CO Faradaic efficiency (FE) 92%, while FE FS/NC 63%. We attributed differences selectivity interaction between sites, are inactive this reaction. Double-layer capacitance (CDL) electrochemical impedance spectroscopy (EIS) larger electrochemically active surface area lower charge-transfer resistance, respectively, FSNC. In addition, demonstrated high (90%) under conditions (pH = 2.1), demonstrating that electrocatalyst can effectively suppress HER conditions. Moreover, 5 cm2 electrodes containing were fabricated, their stability 20 h continuous operation flow cell at different current densities (50–350 mA/cm2), improved Finally, FSCN-based cathodes also Zn–CO2 battery, achieving maximum power density 2.54 mW/cm2 0.48 V with 5.2 mA/cm2 outstanding rechargeability upon 50 charge–discharge cycles h.

Language: Английский

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Enhancing *CO intermediate coverage on the CuAlOx catalyst for the CO2 electroreduction to multicarbon products

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121306 - 121306

Published: Feb. 1, 2025

Language: Английский

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Heterogeneous nanoporous organic frameworks-based catalysts for electrochemical CO₂ reduction reaction

Energy Materials, Journal Year: 2025, Volume and Issue: 5(6)

Published: Feb. 24, 2025

Converting captured carbon dioxide (CO2) into valuable chemicals and fuels through electrocatalysis realizing the anthropogenic closed-carbon cycle can provide new solutions to environmental energy problems. Nanoporous organic frameworks, including metal-organic frameworks (MOFs) porous polymers (POPs), as a class of potential electrocatalysts, have made great progress in CO2 reduction reaction due their high porosity, large specific surface area, structural/functionalization diversity. In this review, recent developments pristine MOFs/POPs, MOFs/POPs composite, MOFs-/POPs-derived catalysts are discussed from aspects catalyst design, synthesis strategy, test techniques, performance validation, active sites, basic mechanism. We further summarize challenges prospects MOFs/POPs-based materials practical applications for reactions point out paths future research. This review comprehensive reference advanced design systematic cognition efficient nanoporous framework electrocatalytic reduction.

Language: Английский

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Enhanced electrocatalytic CO2 reduction through surface modification of Cu-based catalysts

Fuel, Journal Year: 2025, Volume and Issue: 392, P. 134576 - 134576

Published: March 5, 2025

Language: Английский

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Synergistic Acceleration of CO₂ Electroreduction Kinetics by Oxygen Vacancy and Heterogeneous Interface for Efficient HCOOH Production

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract Constructing highly efficient bismuth (Bi)‐based catalysts to accelerate the sluggish kinetic process of CO 2 electroreduction HCOOH is crucial for promoting its practical application but also challenging. Herein, cerium oxide catalyst integrated with dual active centers oxygen vacancy and heterogeneous interface fabricated facilitate reduction enhance performance. It revealed that introduction endows a remarkably enhanced adsorption capacity facilitates transfer more electrons * . Furthermore, it even steers reaction pathway favorably toward production. The optimization adsorption, activation, energy barriers expedited HCOOH. As expected, this exhibits catalytic performance Faradaic efficiency 97% at current density 300 mA cm −2 This work highlights significant synergistic advantages vacancies interfaces in optimizing molecular process.

Language: Английский

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Toward unlocking the potential of aqueous Zn-CO2 batteries: What factors affect the electrochemical performance?

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161736 - 161736

Published: March 1, 2025

Language: Английский

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