Photoassisted Water-Gas Shift Reaction over Platinized TiO2 Catalysts.

Abstract

The reaction of gas phase water with CO (water-gas shift reaction) over platinized, powdered TiO2 is found to be catalytic under UV illumination. The reaction kinetics have been studied at temperatures from 0 to 60 C. At 25 C, the reaction is zero order both in CO and water when p sub CO > or = 0.3 torr and p sub H2O > or = 5 torr and the activation energy is 7.5 kcal/mole. The wavelength dependence of the reaction rate shows a cut-off near, but slightly below, the band gap of titanium oxide. The quantum efficiency of the reaction is about 0.5% at 25 C. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1980
Accession Number
ADA087363

Entities

People

  • J. Michael White
  • Shinri Sato

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Acetic Acid
  • Band Gaps
  • Band Structures
  • Catalysts
  • Chemical Reaction Properties
  • Chemistry
  • Conduction Bands
  • Decomposition
  • Electrochemical Cells
  • Energy Bands
  • Fermi Levels
  • Gases
  • Liquids
  • Materials Science
  • Photodecomposition
  • Quantum Efficiency
  • Water Gases

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Spectroscopy.
  • Thin Film Deposition Science.

Technology Areas

  • Quantum Computing