Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 12, Pages 1502-1505Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06756c
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Funding
- NSFC [U1932146, U19A2015, U1732272, 21673214]
- National Key Research and Development Program of China [2019YFA0405600, 2019YFA0405602, 2017YFA0403402]
- Key Research Program of Frontier Sciences of the CAS [QYZDB-SSW-SLH017]
- National Science Fund for Distinguished Young Scholars [21925204]
- Fundamental Research Funds for the Central Universities
- USTC Research Funds of the Double First-Class Initiative [YD2340002002]
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The metallic Bi catalyst PD-Bi, developed through electrochemical transformation, demonstrated high efficiency in electroreduction of CO2 to HCOOH at a high current density. The abundant grain boundaries within PD-Bi facilitated CO2 adsorption and stabilization of the CO2- intermediate, leading to enhanced catalytic performance.
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.
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