首页|Regulated CO adsorption by the electrode with OH-repulsive property for enhancing C-C coupling

Regulated CO adsorption by the electrode with OH-repulsive property for enhancing C-C coupling

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Electrochemical CO2 reduction driven by renewable electricity is one of the promising strategies to store sus-tainable energy as fuels.However,the selectivity of value-added multi-carbon products remains poor for further application of this process.Here,we regulate CO adsorption by forming a Nafion layer on the copper(Cu)electrode that is repulsive to OH-,contributing to enhanced selectivity of CO2 reduction to C2+products with the suppression of C1 products.The operando Raman spectroscopy indicates that the local OH-would adsorb on part of active sites and decrease the adsorption of CO.Therefore,the electrode with repulsive to OH-can adjust the concentration of OH-,leading to the increased adsorption of CO and enhanced C-C coupling.This work shows that electrode design could be an effective strategy for improving the selectivity of CO2 reduction to multi-carbon products.

CO2 reductionPolymer modified copper electrodeRepulsive to OH-Regulated CO adsorptionEnhancing C-C coupling

Qixing Zhang、Dan Ren、Jing Gao、Zhongke Wang、Juan Wang、Sanjiang Pan、Manjing Wang、Jingshan Luo、Ying Zhao、Michael Gr?tzel、Xiaodan Zhang

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Institute of Photoelectronic Thin Film Devices and Technology,Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin,Ministry of Education Engineering Research Center of Thin Film Photoelectronic Technology,Renewable Energy Conversion and Storage Center,Nankai University,Solar Energy Conversion Center,Nankai University,Tianjin,300350,China

Laboratory of Photonics and Interfaces,Institute of Chemical Sciences and Engineering,école Polytechnique Fédérale de Lausanne(EPFL),1015,Lausanne,Switzerland

INTERNATIONAL COOPERATION Projects of the Ministry of Science and TechnologyStrategic Japanese-Swiss Science and Technology Program from the Swiss National Science FoundationSino-Swiss Science and Technology Cooperation(SSSTC)2016 project from the Swiss National Science FoundationNational Natural Science Foundation of ChinaOverseas Expertise Introduction Project for Discipline Innovation of Higher Education of ChinaTianjin Science and Technology ProjectFundamental Research Fund for the Central Universities of China

2014DFE60170IZJSZ2_180176IZLCZ2_17029461674084B1602718ZXJMTG00220

2023

10.1016/j.gce.2022.07.007

绿色化学工程(英文)
中国科学院过程工程研究所

绿色化学工程(英文)

CSCD
ISSN：
年,卷(期)：2023.4(3)
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