Configurational Effects in the Adsorption of HD on ZnO

Abstract

Hydrogen deuterate, (HD) adsorption on ZnO surfaces has been studied by infrared spectroscopy as a function of ZnO temperature. It is shown that at 300K, the configuration Zn(H)-O(D) is preferred, as expected on thermodynamic grounds. As the temperature is lowered, the configuration Zn(D)-0(H) becomes preferred on kinetic grounds. We demonstrate that configuration reversal on heating must proceed via HD desorption and subsequent re-adsorption. This behavior is consistent with a model in which the transition state for HD adsorption is characterized by nearly complete dissociation of the H-D bond.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1981
Accession Number
ADA109368

Entities

People

  • G. L. Griffin
  • J. T. Yates Jr.

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adsorbates
  • Adsorption
  • Chemical Engineering
  • Chemistry
  • Desorption
  • Dissociation
  • Energy
  • Infrared Spectroscopy
  • Low Temperature
  • Materials
  • Materials Science
  • Military Research
  • Potential Energy
  • Spectroscopy
  • Transitions
  • United States
  • United States Government

Readers

  • Combustion science or combustion engineering.
  • Geochemistry
  • Semiconductor Device Technology