Premium
New Insight into the Role of Gold Nanoparticles in Au@CdS Core–Shell Nanostructures for Hydrogen Evolution
Author(s) -
Ma Xiang,
Zhao Kun,
Tang Hongjie,
Chen Ying,
Lu Chenguang,
Liu Wei,
Gao Yan,
Zhao Huijun,
Tang Zhiyong
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201401494
Subject(s) - hydrogen production , nanoparticle , dispersity , nanotechnology , nanostructure , catalysis , hydrogen , materials science , photocatalysis , computer science , chemistry , organic chemistry , polymer chemistry
Monodisperse Au@CdS core–shell nanostructured hybrids are synthesized and used as an ideal model to investigate the mechanism of photocatalytic hydrogen generation. Au nanoparticle cores act as the hole scavengers, which evidently improves both catalytic activity and catalytic stability of the Au@CdS core–shell nanostructures toward hydrogen production under visible light irradiation. Hot electron transfer from Au to CdS is also observed to be an ineffective way to improve hydrogen evolution.