等离子体子
光热治疗
电化学
表面等离子体子
电极
表面等离子共振
纳米技术
电催化剂
局域表面等离子体子
材料科学
热电子
光化学
电子
化学
化学物理
光电子学
纳米颗粒
物理
物理化学
量子力学
作者
Weihui Ou,Yulong Fan,Junda Shen,Yunkun Xu,Dongqing Huang,Binbin Zhou,Tsz Wing Lo,Shengliang Li,Yang Yang Li,Dangyuan Lei,Jian Lu
出处
期刊:Nano Letters
[American Chemical Society]
日期:2022-10-03
标识
DOI:10.1021/acs.nanolett.2c01035
摘要
Plasmon-mediated chemical reactions have attracted intensive research interest as a means of achieving desirable reaction yields and selectivity. The energetic charge carriers and elevated local temperature induced by the nonradiative decay of surface plasmons are thought to be responsible for improving reaction outcomes. This study reports that the plasmoelectric potential is another key contributor in plasmon-mediated electrochemistry. Additionally, we disclose a convenient and reliable method for quantifying the specific contributions of the plasmoelectric potential, hot electrons, and photothermal heating to the electroreduction of oxygen at the plasmonic Ag electrode, revealing that the plasmoelectric potential is the dominating nonthermal factor under short-wavelength illumination and moderate electrode bias. This work elucidates novel mechanistic understandings of plasmon-mediated electrochemistry, facilitating high-performance plasmonic electrocatalyst design optimization.
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