A nano AuTiO2−x composite with electrochemical characteristics of under-potential deposition of H (H-UPD) as a highly efficient electrocatalyst for hydrogen evolution

An obvious H-UPD for a nano AuTiO2−x composite has been found for the first time in terms of the electrochemical characteristics of the Au composite. The electronic effect between Au and TiO2 and the oxygen vacancy defect would change the adsorption energy of H and HER activity. The HER activity of...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019, Vol.55 (84), p.12695-12698
Main Authors: Ren, Zhandong, Jin, Lingzhi, Gao, Jie, Chen, Hanruo, Zhai, Conghui, Tan, Lingjun, Cong, Ning, Fang, Hua, Zhou, Xiaorong, Zhu, Yuchan
Format: Article
Language:English
Subjects:
Electrodes
Hydrogen evolution
Titanium dioxide
Underpotential deposition
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Summary:An obvious H-UPD for a nano AuTiO2−x composite has been found for the first time in terms of the electrochemical characteristics of the Au composite. The electronic effect between Au and TiO2 and the oxygen vacancy defect would change the adsorption energy of H and HER activity. The HER activity of the AuTiO2−x electrode is 6.44 times that of the Au electrode.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc06530j