首页|Few-Atom Copper Catalyst for the Electrochemical Reduction of CO to Acetate:Synergetic Catalysis between Neighboring Cu Atoms

Few-Atom Copper Catalyst for the Electrochemical Reduction of CO to Acetate:Synergetic Catalysis between Neighboring Cu Atoms

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Single-atom catalysts(SACs)are gaining increasing recognition because of their superior catalytic prop-erties for various reactions.However,the performance of SACs is often limited by the lack of neighboring metal centers to cooperate in catalysis.Herein,a synergetic interaction between neighboring Cu atoms of a few-atom catalyst(FAC)on graphdiyne(GDY)is found to greatly enhance the production of acetate in the CO electroreduction reaction relative to Cu SACs.In a 1.0 M KOH electrolyte,this Cu FAC exhibits an acetate Faradaic efficiency of 53.8±1.5％,an ultrahigh relative purity of up to 97 wt％for liquid products,and excellent stability over 23 h continuous electrolysis at-0.8 V versus reversible hydrogen electrode.Theoret-ical studies suggest that the intersite catalytic com-munication between two neighboring metal atoms confined in each pore of GDY facilitates the formation of acetic acid through either stepwise hydrogenation of CH2CO*or the direct reaction of H2O with CH2CO*.Our study demonstrates the unprecedented synerget-ic catalysis of Cu FAC in promoting the selective CO electroreduction toward acetate production.

CO electroreductionsynergetic catalysisfew-atom catalystgraphdiyneacetate

Weifeng Rong、Haiyuan Zou、Sha Tan、Enyuan Hu、Fan Li、Chao Tang、Hao Dai、Shuting Wei、Yongfei Ji、Lele Duan

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Shenzhen Grubbs Institute and Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong 518055

School of Chemical Engineering,Shandong University of Technology,Zibo,Shandong 255049

Chemistry Division,Brookhaven National Laboratory,Upton,New York 11973

School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou,Guangdong 510006

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国家自然科学基金国家自然科学基金国家自然科学基金Shenzhen Research and Development fundStable Support Plan Program of Shenzhen Natural Science Fund广东省教委项目Assistant Secretary for Energy Efficiency and Renewable Energy,Vehicle Technology Office of the US Department of Energy(DOE)Brookhaven National Laboratory

217710982190301621901110KQTD20180411143418361202009251527420032020KTSCX121DE-SC0012704DE-SC0012704

2023

10.31635/ccschem.022.202201910

中国化学会会刊(英文)

中国化学会会刊(英文)

CSCD
ISSN：
年,卷(期)：2023.5(5)
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