Microenvironment Matters: Copper–Carbon Composites Enable a Highly Efficient Carbon Dioxide Reduction Reaction to C₂ Products

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Copper is the catalyst widely used to produce multicarbon products for carbon dioxide reduction reaction (CO2RR). The surrounding microenvironment of copper plays a crucial role in determining its catalytic activity and selectivity. In this study, we compare three electrocatalysts with different microenvironments: pure metallic copper, metal–organic framework (MOF), MOF-derived copper–carbon composite. Operando X-ray absorption spectroscopy, transmission electron microscopy, Raman spectroscopy reveal that composite remains state, encapsulated by matrix. achieves Faradaic efficiency 75.6% C2 products, including ethylene ethanol, at current density 500 mA cm–2, 377.9 cm–2. This performance suppresses which reaches an optimal 64.5% 300 193.5 also significantly overperforms copper-MOF catalyst, shows 52.0% 400 208.0 These findings highlight importance near active sites CO2RR efficiency. We hope our results provide valuable insights advancing design reduction, contributing reduced emissions improved environmental sustainability.

Язык: Английский

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B-site co-doping strategy incubated BaCoO3--based perovskite ceramic membrane with enhanced permeability and stability for oxygen separation

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163267 - 163267

Опубликована: Апрель 1, 2025

Язык: Английский

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A Perspective on Electrochemical Point Source Utilization of CO₂ and Other Flue Gas Components to Value Added Chemicals

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 28, 2024

Abstract Electrochemical CO 2 reduction reaction (eCO RR) has been explored extensively for mitigation of noxious gas generating C 1 and 2+ hydrocarbons oxygenates as value‐added fuels chemicals with remarkable selectivity. The source being a pure feed, it does not fully satisfy the real‐time digestion industrial exhausts. Besides detrimental effect mixture leading to global warming, there is huge capital investment in purifying flue mixtures from industries. presence other impurity gases affects eCO RR mechanism its activity selectivity toward products dwindle drastically. Impurities like NO x , SO O N halide ions present reduce conversion significantly. Instead wiping out these impurities via separation processes, new strategies material chemistry electrochemistry can open avenues turning foes friends! In this perspective, co‐electroreduction will vividly discussed supporting role different heteroatom‐containing highly stable C─N, C─S, C─X bonds, highlight existing limitations providing probable solutions attaining further success field translating exhaust streams.

Язык: Английский

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Directing CO₂ electroreduction to ethanol via delicate geometrical modification of copper-based alloys

Materials Horizons, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This paper describes a detailed simulation approach to simulate the redox process on CuZn alloys, bridging traditional calculations with large-scale, multi-step processes and identifying key active sites for ethanol production.

Язык: Английский

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Recent progresses of plasma-catalytic CH4/CO2 conversion to oxygenates: a short review

Current Opinion in Green and Sustainable Chemistry, Год журнала: 2024, Номер unknown, С. 100989 - 100989

Опубликована: Дек. 1, 2024

Язык: Английский

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