Review on strategies for improving the added value and expanding the scope of CO₂ electroreduction products

Chemical Society Reviews, Год журнала: 2024, Номер 53(10), С. 5149 - 5189

Опубликована: Янв. 1, 2024

This review summarizes promising strategies including the design of catalysts and construction coupled electrocatalytic reaction systems, aimed at achieving selective production various products from CO 2 electroreduction.

Язык: Английский

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Structuring Cu Membrane Electrode for Maximizing Ethylene Yield from CO₂ Electroreduction

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 20, 2024

Electrocatalytic ethylene (C

Язык: Английский

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Atomically Dispersed Metal Catalysts for the Conversion of CO₂ into High‐Value C₂₊ Chemicals

Advanced Materials, Год журнала: 2024, Номер 36(37)

Опубликована: Май 19, 2024

Abstract The conversion of carbon dioxide (CO 2 ) into value‐added chemicals with two or more carbons (C 2+ is a promising strategy that cannot only mitigate anthropogenic CO emissions but also reduce the excessive dependence on fossil feedstocks. In recent years, atomically dispersed metal catalysts (ADCs), including single‐atom (SACs), dual‐atom (DACs), and single‐cluster (SCCs), emerged as attractive candidates for fixation reactions due to their unique properties, such maximum utilization active sites, tunable electronic structure, efficient elucidation catalytic mechanism, etc. This review provides an overview significant progress in synthesis characterization ADCs utilized photocatalytic, electrocatalytic, thermocatalytic toward high‐value C compounds. To provide insights designing chemical originating from , key factors influence activity selectivity are highlighted. Finally, relevant challenges opportunities discussed inspire new ideas generation ‐based products over ADCs.

Язык: Английский

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Metal‐Organic Frameworks‐Based Copper Catalysts for CO₂ Electroreduction Toward Multicarbon Products

Exploration, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

ABSTRACT Copper (Cu) is the most promising catalyst for electrochemical CO 2 ‐to‐C 2+ conversion, whereas performance remains below practical thresholds due to high energy barrier of C−C coupling and lack effective approaches steer reaction pathway. Recent advances show that metal‐organic frameworks (MOF) could be a platform as support, pre‐catalyst, co‐catalyst modify electronic structure local environment Cu catalysts promoting reduction by virtue their great tunability over compositions pore architectures. In this review, we discussed general design principles, catalytic mechanisms, achievements MOF‐based catalysts, aiming boost refinement steering pathway C products. The fundamentals challenges are first introduced. Then, summarized conceptions from three aspects: engineering properties Cu, regulating environment, managing site exposure mass transport. Further, latest progress products namely Cu‐based MOF, MOF‐derived Cu@MOF hybrid discussed. Finally, future research opportunities strategies suggested innovate rational advanced electrifying transformation.

Язык: Английский

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Advances in rare earth catalysts for small molecule electrosynthesis☆

Journal of Rare Earths, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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Optimizing C─C Coupling on Cu⁰/Cu⁺/Ga Interfaces by Enhancing Active Hydrogen Absorption for Excellent CO₂‐to‐C₂₊ Electrosynthesis

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

The electrocatalytic reduction of CO2 (CO2RR) to high-value chemicals and fuels offers a promising route for clean carbon cycle. However, it often suffers from low catalytic activity poor selectivity. Heterostructure construction has been shown be an effective strategy producing multi-carbon products, but the synergistic mechanisms between multiple active sites resulting reconstruction process remain unclear. In this study, Ga2O3/CuO heterostructure is established via simple sol-gel method produce C2+ products. Experimental results demonstrate that Ga2O3 stabilizes Cu+ form Cu0/Cu+/Ga centers enhances water-splitting ability during reaction. improved hydrogen absorption on Ga site shifts C─C coupling reaction pathway *OCCO asymmetric *OCCHO path with lower energy barrier. As result, catalysts exhibit superior CO2RR performance, achieving 70.1% Faradaic efficiency at -1.2 VRHE in flow cell, ethylene reaching 58.3% remaining stable 10 h.

Язык: Английский

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Switching CO-to-Acetate Electroreduction on Cu Atomic Ensembles

Journal of the American Chemical Society, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

The electrocatalytic reaction pathway is highly dependent on the intrinsic structure of catalyst. CO2/CO electroreduction has recently emerged as a potential approach for obtaining C2+ products, but it challenging to achieve high selectivity single product. Herein, we develop Cu atomic ensemble that satisfies appropriate site distance and coordination environment required CO-to-acetate conversion, which shows outstanding overall performance with an acetate Faradaic efficiency 70.2% partial current density 225 mA cm–2 formation rate 2.1 mmol h–1 cm–2. Moreover, single-pass CO conversion 91% remarkable stability can be also obtained. Detailed experimental theoretical investigations confirm significant advantages ensembles in optimizing C–C coupling, stabilizing key ketene intermediate (*CCO), inhibiting *HOCCOH intermediate, switch reduction from ethanol/ethylene conventional metallic ensembles.

Язык: Английский

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Strategies for overcoming challenges in selective electrochemical CO2 conversion to ethanol

iScience, Год журнала: 2024, Номер 27(8), С. 110437 - 110437

Опубликована: Июль 2, 2024

The electrochemical conversion of carbon dioxide (CO2) to valuable chemicals is gaining significant attention as a pragmatic solution for achieving neutrality and storing renewable energy in usable form. Recent research increasingly focuses on designing electrocatalysts that specifically convert CO2 into ethanol, desirable product due its high-energy density, ease storage, portability. However, high-efficiency ethanol production remains challenge compared ethylene (a competing with similar electron configuration). Existing electrocatalytic systems often suffer from limitations such low efficiency, poor stability, inadequate selectivity toward ethanol. Inspired by recent progress the field, this review explores fundamental principles material advancements electroreduction, emphasizing strategies over ethylene. We discuss electrocatalyst design, reaction mechanisms, challenges, future directions. These aim bridge gap between current industrialized applications technology.

Язык: Английский

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Carbon Nanocage Supported Asymmetrically Coordinated Nickle Single‐Atom for Enhanced CO2 Electroreduction in Membrane Electrode Assembly

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 26, 2024

Designing efficient catalysts for operating CO

Язык: Английский

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Crown ether functionalization boosts CO2 electroreduction to ethylene on copper-based MOFs

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Incorporating crown ether into Cu-based MOFs tailors the microenvironment at electrolyte–catalyst interface, enhancing Faradaic efficiency of electrochemical CO 2 reduction reaction to ethylene (C H 4 ).

Язык: Английский

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