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

Zhandong Ren; Lingzhi Jin; Jie Gao; Hanruo Chen; Conghui Zhai; Lingjun Tan; Ning Cong; Hua Fang; Xiaorong Zhou; Yuchan Zhu

doi:10.1039/c9cc06530j

A nano AuTiO_2-x composite with electrochemical characteristics of under-potential deposition of H (H-UPD) as a highly efficient electrocatalyst for hydrogen evolution

Chem Commun (Camb). 2019 Oct 17;55(84):12695-12698. doi: 10.1039/c9cc06530j.

Authors

Affiliation

¹ School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China. zhuyuchan@163.com.

PMID: 31588458
DOI: 10.1039/c9cc06530j

Abstract

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.