Promotion of CO2 Electroreduction on Bismuth Nanosheets with Cerium Oxide nanoparticles.
Chem Asian J
; 19(17): e202400296, 2024 Sep 02.
Article
em En
| MEDLINE
| ID: mdl-38889347
ABSTRACT
Formic acid (HCOOH) is a highly energy efficient product of the electrochemical CO2 reduction reaction (CO2RR). Bismuth-based catalysts have shown promise in the conversion of CO2 to formic acid, but there is still a great need for further improvement in selectivity and activity. Herein, we report the preparation of Bi nanosheets decorated by cerium oxide nanoparticles (CeOx) with high Ce3+/Ce4+ ratio and rich oxygen vacancies. The CeOx nanoparticles affect the electronic structures of bismuth, enhance CO2 adsorption, and thus promote the CO2RR properties of Bi nanosheets. Compared with elemental Bi nanosheets, the hetero-structured CeOx/Bi nanosheets exhibit much higher activity over a wide potential window, showing a current density of 16.1â
mA cm-2 with a Faradaic efficiency of 91.1% at -0.9â
V vs. reversible hydrogen electrode.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Chem Asian J
Ano de publicação:
2024
Tipo de documento:
Article