New Insight into the Role of Gold Nanoparticles in Au@CdS Core–Shell Nanostructures for Hydrogen Evolution

作者：Xiang Ma, Kun Zhao, Hongjie Tang, Ying Chen, Chenguang Lu, Wei Liu, Yan Gao, Huijun Zhao, Zhiyong Tang · 发表于：Small · 年份：2014 · DOI：10.1002/smll.201401494 · 被引用次数：151 · 研究领域：Advanced Photocatalysis Techniques、Copper-based nanomaterials and applications、Advanced Nanomaterials in Catalysis

Monodisperse [email protected] 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 [email protected] 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.