Hydrogen Photo-production from Ethanol and Water over Au/TiO2 Rutile Single Crystal

Abstract

This project in its final form has focused on hydrogen production from ethanol and water-ethanol mixtures over a range of different gold-titania photocatalysts. Gold supported on a commercial anatase: rutile mixture has been found to be 3 times more active for hydrogen production than the previously reported gold on anatase photocatalysts. Other products detected were ethene and acetaldehyde; these products were enhanced in the presence of water. In-situ EPR spectroscopy was used to show that the gold nanoparticles act as sinks for electrons produced in the conduction band of the titania. Experiments with gold supported on Brookite showed that this support was comparable in activity with anatase, although a Brookite: anatase mixed phase support gave higher activity than either pure Brookite or pure anatase.

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Document Details

Document Type
Technical Report
Publication Date
Mar 26, 2014
Accession Number
ADA605992

Entities

People

  • Hicham Idriss
  • Russell F. Howe

Organizations

  • University of Aberdeen

Tags

Communities of Interest

  • Advanced Electronics
  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Alkenes
  • Conduction Bands
  • Department Of Defense
  • Electron Transfer
  • Energy Bands
  • Engineering
  • Ethylenes
  • High Resolution
  • Hydroxyl Radical
  • Metallic Nanoparticles
  • Nanoparticles
  • Particle Size
  • Particles
  • Production Rate
  • Spectroscopy
  • Statistical Analysis
  • Students

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science
  • Organic Chemistry

Technology Areas

  • Biotechnology
  • Microelectronics