Kinetics of Sulfur Transfer from H2S to Alpha-Ag2+xS

V. K. Pareek, T. A. Ramanarayanan, J. D. Mumford

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The rate of sulfur transfer across the gas/solid interface involving H2S(g) and α-Ag2+xS surface has been investigated using resistance relaxation measurements at 300°C. The rate of the oxidation reaction incorporating sulfur into Ag2+x.S has been found to decrease with sulfur activity in the sample as (αs)-1/2 while the rate of the reduction reaction corresponding to the sulfur loss is found to increase with the sulfur activity as (αs)1/2. The rate-limiting step has been identified to be H2S + 2e-= S2-(ad) + H2.

Original languageEnglish (US)
Pages (from-to)1784-1788
Number of pages5
JournalJournal of the Electrochemical Society
Issue number6
StatePublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry


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