Synthesis and characterization of ternary cobalt spinal oxides for photoelectrochemical water splitting to produce hydrogen

Sudhakar Shet, Yanfa Yan, Todd Deutsch, Heli Wang, Nuggehalli Ravindra, John Turner, Mowafak Al-Jassim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an experimental investigation of ternary cobalt spinal oxides for photoelectrochemical water splitting to produce hydrogen. In this study, Co1+δX2-δO4(X = Al, Ga, In) thin films were deposited using RF magnetron reactive co-sputtering system. All the thin films were deposited on silver/stainless steel and on quartz substrate, because of the high temperature (800°C) oxide growth. We found that these thin films show excellent stability in solution and good visible light absorption. However, their performance as photoelectrochemical catalyst is limited by the poor transport properties induced by small polaron mobility.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
Pages268-275
Number of pages8
StatePublished - Dec 1 2010
EventMaterials Science and Technology Conference and Exhibition 2010, MS and T'10 - Houston, TX, United States
Duration: Oct 17 2010Oct 21 2010

Publication series

NameMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
Country/TerritoryUnited States
CityHouston, TX
Period10/17/1010/21/10

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)

Keywords

  • Band gap
  • Cobalt spinal oxides
  • Crystallinity
  • Doping
  • Gas ambient
  • Photoelectrochemical
  • RF power
  • Sputter
  • Substrate temperature

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