Substrate-, Wavelength-, and Time-Dependent Plasmon-Assisted Surface Catalysis Reaction of 4-Nitrobenzenethiol Dimerizing to p,p '-Dimercaptoazobenzene on Au, Ag, and Cu Films

Bin Dong, Yurui Fang, Xiaowei Chen, Hongxing Xu, Mengtao Sun

Research output: Contribution to journalArticlepeer-review

194 Citations (SciVal)

Abstract

In this article, we experimentally investigate the substrate, wavelength, and time dependence of the plasmon-assisted surface-catalyzed dimerization of 4-nitrobenzenethiol to form p,p'-dimercaptoazobenzene on Au, Ag, and Cu films. We provide direct experimental evidence that surface plasmon resonance plays the most important role in these surface-catalyzed reactions. It is found that the reaction is strongly dependent on the substrate, the wavelength of the laser, and the reaction timescales. Our experimental results revealed that optimal experimental conditions can be rationally chosen to control (accelerate or restrain) this reaction. The experimental results are also confirmed by theoretical calculations.
Original languageEnglish
Pages (from-to)10677-10682
JournalLangmuir
Volume27
Issue number17
DOIs
Publication statusPublished - 2011

Subject classification (UKÄ)

  • Condensed Matter Physics

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