Enhanced Plasmonic Hot Electron Transfer on Aucore‐Agshell Nanoparticles under Visible‐Light Irradiation.
- Resource Type
- Article
- Authors
- Wang, Ying; Li, Yonglong; Zhang, Zhao; Xie, Wei
- Source
- ChemCatChem. 11/22/2023, Vol. 15 Issue 22, p1-6. 6p.
- Subject
- *HOT carriers
*CHARGE exchange
*PLASMONICS
*CHEMICAL amplification
*GOLD nanoparticles
*SURFACE enhanced Raman effect
- Language
- ISSN
- 1867-3880
Plasmonic photocatalysis under visible‐light irradiation has long been regarded as a very promising strategy for inducing chemical transformations. However, the efficient utilization of these hot electrons on monometallic nanoparticles to induce chemical reaction remains a challenging subject. Here, we study plasmonic hot electron activity of Aucore‐Agshell bimetallic nanoparticles towards the four‐electron reduction of 4‐nitrothiophenol to 4,4′‐dimercaptoazobenzene. Our results show that Aucore‐Agshell nanoparticles possess a higher catalytic activity than pure Au and Ag nanoparticles and the photocatalytic transformation is strongly dependent on the thickness of Ag shell. The plasmonic catalytic activity could be explained by a boosting hot‐electron‐hole separation driven by the contact potential at the bimetallic interface. This work provides new opportunities to enhance the efficient utilization of hot electron for plasmonic photocatalysis reaction. [ABSTRACT FROM AUTHOR]