Journal
ACS APPLIED ENERGY MATERIALS
Volume 4, Issue 7, Pages 6616-6623Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c00672
Keywords
electrochemical CO2 reduction; nanoarrays electrode; active site; cobalt(II) phthalocyanine; ZnIn2S4
Funding
- Public Projects of Zhejiang Province [2017C33008]
- K. C. Wong Magna Fund in Ningbo University
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The study successfully demonstrated the electrocatalytic reduction of CO2 into value-added fuels by anchoring self-supported cobalt phthalocyanine on chrysanthemum-like ZnIn2S4 nanoarray electrode. Experimental and computational analyses revealed that the active site for CO2 reduction was attributed to Co sites, while for hydrogen evolution reaction, it was mainly ascribed to the S site on the surface of ZIS.
Electrocatalytic CO2 reduction into value-added fuels is a promising and economical strategy to mitigate CO2 emissions. Herein, a self-supported cobalt phthalocyanine anchored on chrysanthemum-like ZnIn2S4 nanoarray electrode was prepared. By integration of experimental analysis and density functional theory calculation, the CoPc molecule was anchored with hexagonal ZnIn2S4 (ZIS) via S-C and Co-S interaction. The active site for CO2RR in ZIS-CoPc was attributed to Co sites. For hydrogen evolution reaction, the active site was mainly ascribed to the S site on the surface of ZIS.
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