In Situ FTIR Study of the Adsorption Geometry of Bisulfate Ions on a Platinum Electrode

Abstract

It is shown that a better understanding of the geometry of adsorbed bisulfate species on the surface is gained by simultaneously monitoring more than one vibrational mode of the molecule. We propose that in the double layer region the bisulfate ions are adsorbed via an oxygen atom of its SO3 unit with the Pt-O-S linkage along the surface normal. In the oxide region the bisulfate ions are adsorbed on the oxygen covered surface of the platinum electrode via the hydrogen atom by hydrogen bonding with the hydrogen bond showing a significant tilt (approximately 60 deg). (JS)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1990
Accession Number
ADA229793

Entities

People

  • Hajime Seki
  • Keiji Kunimatsu
  • Mahesh G. Samant
  • Michael R. Philpott

Organizations

  • International Business Machines Corporation (Armonk, NY)

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Absorption Spectra
  • Adsorption
  • Dipole Moments
  • Electric Fields
  • Electrodes
  • Frequency
  • Geometry
  • Hydrogen
  • Hydrogen Bonds
  • Hydrogen Electrodes
  • Intensity
  • Military Research
  • Molecules
  • Orientation (Direction)
  • Platinum
  • Spectra
  • United States

Readers

  • Analytical Chemistry
  • Geodesy
  • Quantum Chemistry