A phosphate-derived bismuth catalyst with abundant grain boundaries for efficient reduction of CO 2 to HCOOH

Electroreduction of CO2 to HCOOH with high current densities and efficiencies remains a challenge. Herein, we developed a metallic Bi catalyst with abundant grain boundaries through the electrochemical transformation of BiPO4 nanorods to boost the catalytic performance of the electroreduction of CO2...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-02, Vol.57 (12), p.1502-1505
Main Authors: Xing, Yulin, Chen, Huihuang, Liu, Yan, Sheng, Yelin, Zeng, Jie, Geng, Zhigang, Bao, Jun
Format: Article
Language:English
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Summary:Electroreduction of CO2 to HCOOH with high current densities and efficiencies remains a challenge. Herein, we developed a metallic Bi catalyst with abundant grain boundaries through the electrochemical transformation of BiPO4 nanorods to boost the catalytic performance of the electroreduction of CO2 to HCOOH. The phosphate-derived Bi catalyst (PD-Bi) achieved an FE of 91.9% for HCOOH at a high current density of -600.0 mA cm-2. Mechanistic study revealed that the abundant grain boundaries within PD-Bi promoted the adsorption of CO2 and stabilization of the CO2˙- intermediate, resulting in facilitated CO2 activation and thus enhanced catalytic performance.
ISSN:1359-7345
1364-548X
DOI:10.1039/D0CC06756C