Quantitative Detection of Photothermal and Photoelectrocatalytic Effects Induced by SPR from Au@Pt Nanoparticles

作者：Hao Yang, Lanqi He, Yuwen Hu, Xihong Lu, Gao‐Ren Li, Bi-Ju Liu, Bin W. Ren, Yexiang Tong, Ping‐Ping Fang · 发表于：Angewandte Chemie International Edition · 年份：2015 · DOI：10.1002/anie.201505985 · 被引用次数：207 · 研究领域：Gold and Silver Nanoparticles Synthesis and Applications、Advanced Nanomaterials in Catalysis、Nanocluster Synthesis and Applications

The surface plasmon resonance (SPR) induced photothermal and photoelectrocatalysis effects are crucial for catalytic reactions in many areas. However, it is still difficult to distinguish these two effects quantitatively. Here we used surface-enhanced Raman scattering (SERS) to detect the photothermal and photoelectrocatalytic effects induced by SPR from Au core Pt shell Nanoparticles (Au@Pt NPs), and calculated the quantitative contribution of the ratio of the photothermal and photoelectrocatalysis effects towards the catalytic activity. The photothermal effect on the nanoparticle surface after illumination is detected by SERS. The photoelectrocatalytic effect generated from SPR is proved by SERS with a probe molecule of p-aminothiophenol (PATP).