Oxygen vacancies in Bi2WO6 enable robust nitrate reduction reaction catalysis

The faradaic efficiency of Bi2WO6 is 62.0% at −0.3 V vs. RHE, an improvement of 1.4- and 1.8-times relative to Bi2O3 and WO3 for the nitrate reduction reaction. In addition, the catalysis occurring on Bi2WO6 follows the pathway: *NO3–*NO2–*NO–*NOH–*HNOH–*H2NOH–*NH3, as verified by operando Raman spe...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-10, Vol.60 (83), p.11968-11971
Main Authors: Ren, Qing, Zhou, Cong, Feng, Yumei, Li, Yifei, Xie, Yuhua, Yu, Yingjie, Li, Chunsheng, Chen, Yazhou, Sun, Yan, Luo, Fang
Format: Article
Language:English
Subjects:
Ammonia
Bismuth compounds
Bismuth trioxide
Catalysis
Chemical reduction
Nitrogen dioxide
Raman spectroscopy
Tungstates
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Summary:The faradaic efficiency of Bi2WO6 is 62.0% at −0.3 V vs. RHE, an improvement of 1.4- and 1.8-times relative to Bi2O3 and WO3 for the nitrate reduction reaction. In addition, the catalysis occurring on Bi2WO6 follows the pathway: *NO3–*NO2–*NO–*NOH–*HNOH–*H2NOH–*NH3, as verified by operando Raman spectroscopy and theoretical calculations.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc04193c