Stable and efficient solar-driven photoelectrochemical water splitting into H2 and O2 based on a BaTaO2N photoanode decorated with CoO microflowers

Stable and efficient photoelectrochemical water splitting has been achieved using a BaTaO2N photoanode decorated with CoO microflowers. The CoO microflowers effectively collect holes from BaTaO2N which kinetically protects BaTaO2N against photocorrosion. A Faraday efficiency of almost unity (99.2%)...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-05, Vol.57 (36), p.4412-4415
Main Authors: Shunhang Wei, Chang, Shufang, Yang, Fan, Fu, Zhengping, Liu, Gang, Xu, Xiaoxiang
Format: Article
Language:English
Subjects:
Absorption spectra
Oxidation
Photoanodes
Photoelectric effect
Photoelectric emission
Water splitting
X ray absorption
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Summary:Stable and efficient photoelectrochemical water splitting has been achieved using a BaTaO2N photoanode decorated with CoO microflowers. The CoO microflowers effectively collect holes from BaTaO2N which kinetically protects BaTaO2N against photocorrosion. A Faraday efficiency of almost unity (99.2%) has been recorded for O2 evolution reactions. The tips of the CoO microflowers are the most active sites for water oxidation reactions.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc07778j