Characterization of surface water on Au core Pt-group metal shell nanoparticles coated electrodes by surface-enhanced Raman spectroscopy

Chem Commun (Camb). 2007 Nov 28:(44):4608-10. doi: 10.1039/b711218a. Epub 2007 Oct 9.

Abstract

We utilized the strategy of 'borrowing SERS activity', by chemically coating several atomic layers of a Pt-group metal on highly SERS-active Au nanoparticles, to obtain the first SERS (also Raman) spectra of surface water on Pt and Pd metals, and propose conceptual models for water adsorbed on Pt and Pd metal surfaces.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrodes
  • Gold / chemistry*
  • Metal Nanoparticles / chemistry*
  • Platinum / chemistry*
  • Sensitivity and Specificity
  • Spectrum Analysis, Raman / methods*
  • Surface Properties
  • Water / chemistry

Substances

  • Water
  • Platinum
  • Gold