Journal
ACS CATALYSIS
Volume 9, Issue 11, Pages 10440-10447Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.9b02443
Keywords
carbon dioxide; electroreduction; core-shell; hybrid catalyst; concentration effect
Categories
Funding
- National Key Research and Development Program of China [2017YFA0206901, 2018YFA0209401]
- National Natural Science Foundation of China [21975051, 21773036]
- Science and Technology Commission of Shanghai Municipality [17JC1400100]
- Shanghai Shu-Guang Program [15SG01]
- Natural Sciences and Engineering Research Council of Canada [RGPIN-2016-05494]
- China Scholarship Council [201606050046]
Ask authors/readers for more resources
Electrochemical CO2 reduction reaction (CO2RR) is a promising technology to use renewable electricity to convert CO2 into value-added carbon-based products. The low-cost, active, selective, and stable catalysts will play a key role in achieving industrialized CO2RR. The electrolyte assists a catalyst in achieving all its latent capability. Here the concentration effect of KHCO3 in CO2RR was systematically investigated on the low-cost core-shell structured Cu(2)OgSnO(x) nanoparticle-derived hybrid catalyst. An HCO3--involved proton-coupled electron transfer was confirmed as the rate-determining step for CO2RR on the hybrid catalyst in aqueous KHCO3 solution based on the analysis of the reaction order and Tafel slope. The nearly 100% selectivity for CO was achieved in a highly concentrated KHCO3 solution accompanied by a high cathodic energetic efficiency of 71.8%. It was attributed to the combined concentration effect of KHCO3 with the related pH effect.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available