Electrochemical adsorption of rhodium on platinum

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Abstract

Electrosorption of rhodium on a polycrystalline platinum surface has been studied. It has been found that a complete Rh-coverage can be obtained by spontaneous adsorption via the ionization of preadsorbed hydrogen. Underpotential deposition of rhodium has been observed both in 0.5 M H2SO4 and 0.2 M HCl supporting electrolytes. The value of the underpotential shift was found to be about 100-120 mV.

Original languageEnglish
Pages (from-to)103-107
Number of pages5
JournalJournal of Electroanalytical Chemistry
Volume547
Issue number1
DOIs
Publication statusPublished - Apr 24 2003

Keywords

  • Adsorption
  • Platinum
  • Rhodium
  • Underpotential deposition

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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