Tuning Metal Catalyst with Metal-C3N4 Interaction for Efficient CO2 Electroreduction

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Zhang, Le
Mao, Fangxin
Zheng, Li Rong
Wang, Hai Feng
Yang, Xiao Hua
Yang, Hua Gui
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2018
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Abstract

Electrochemical CO2 reduction reaction (CO2RR) has attracted significant interest in the storage of renewable solar energy and mitigation of environmental issues. Here, we report a strategy to tune metal electrocatalyst by means of metal-substrate interactions to boost CO2RR process. It was found that carbon nitride (C3N4) supported Au nanoparticles (Au/C3N4) exhibit a better performance than carbon-supported Au nanoparticles (Au/C). The combined experimental and theoretical results evidence that Au-C3N4 interaction induces the formation of negatively charged Au surface, which could stabilize the key intermediateCOOH. Similar enhanced CO2RR performance is also observed on C3N4 supported Ag nanoparticles (Ag/C3N4), demonstrating the universality of this strategy for enhancing CO2RR.

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ACS Catalysis

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8

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12

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Inorganic chemistry

Organic chemistry

Chemical engineering

Science & Technology

Physical Sciences

Chemistry, Physical

CO2 electroreduction

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Zhang, L; Mao, F; Zheng, LR; Wang, HF; Yang, XH; Yang, HG, Tuning Metal Catalyst with Metal-C3N4 Interaction for Efficient CO2 Electroreduction, ACS CATALYSIS, 2018, 8 (12), pp. 11035-11041

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