Plasmon-driven catalysis of adsorbed p-nitroaniline (PNA) by surface-enhanced Raman scattering (SERS): Platinum versus silver

Abstract

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights A study of PNA adsorption on Pt nanoparticles is performed by SERS for the first time  Results are discussed and compared with those published and obtained with Ag  Similar SERS spectra were obtained on both metals when O 2 is present  However, different SERS spectra were obtained on both metals if O 2 is absent  Without O 2 no plasmonic catalytic reductive coupling of NO 2 group on Pt fully occurs

Optical Control of the Localized Surface Plasmon Resonance in a Heterotype and Hollow Gold Nanosheet

“…When they are excited by light, SPs will be converted into surface plasmon polaritons (SPPs) and are able to be controlled and localized within a special metallic nanostructure in those certain regions such as the tips, the edges or the gaps [ 3 , 4 , 5 , 6 ]. The localized surface plasmon (LSP) and LSPR can effectively enhance the localized electromagnetic field (LEF), which is thought to be a novel technique that possesses potential applications in many fields such as SERS, SERS sensors, plasmon-mediated chemical reactions and so on [ 4 , 7 , 8 , 9 , 10 ].…”

In situ monitoring of the plasmon catalytic reaction of p-nitroaniline at a gas–liquid–solid three phase interface

“…It has been found that the reaction of PNA is quite different on Ag than on Pt, the reduction process will not occur on the Pt substrate. 30 However, in another situation, PNA would convert into 4,4′-diaminoazobenzena (DAAB) on the graphene-coated Ag nanoparticle hybrids. 31 The reaction results of PNA molecules in different environments are diverse.…”