Open AccessSurface decorated Ni sites for superior photocatalytic hydrogen production
Author(s) -
Huang Wenhuan,
Bo Tingting,
Zuo Shouwei,
Wang Yunzhi,
Chen Jiamin,
OuldChikh Samy,
Li Yang,
Zhou Wei,
Zhang Jing,
Zhang Huabin
Publication year - 2022
Publication title -
susmat
Language(s) - English
Resource type - Journals
ISSN - 2692-4552
DOI - 10.1002/sus2.76
Subject(s) - photocatalysis , hydrogen production , materials science , nanowire , adsorption , hydrogen , semiconductor , dispersion (optics) , chemical engineering , absorption (acoustics) , catalysis , nanotechnology , electron transfer , photochemistry , chemical physics , chemistry , optoelectronics , optics , biochemistry , physics , organic chemistry , engineering , composite material
Abstract Precise construction of isolated reactive centers on semiconductors with well‐controlled configurations affords a great opportunity to investigate the reaction mechanisms in the photocatalytic process and realize the targeted conversion of solar energy to steer the charge kinetics for hydrogen evolution. In the current research, we decorated isolated Ni atoms on the surface of CdS nanowires for efficient photocatalytic hydrogen production. X‐ray absorption fine structure investigations clearly demonstrate the atomical dispersion of Ni sites on the surface of CdS nanowires. Experimental investigations reveal that the isolated Ni atoms not only perform well as the real reactive centers but also greatly accelerate the electron transfer via direct Ni–S coordination. Theoretical simulation further documents that the hydrogen adsorption process has also been enhanced over the semi‐coordinated Ni centers through electronic coupling at the atomic scale.