The role of gallium oxide in methane partial oxidation catalysts: an experimental and theoretical study

Cooper, Christopher Anthony, Hammond, Charles R., Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Willock, David James ORCID: https://orcid.org/0000-0002-8893-1090 and Tabata, Kenji 2001. The role of gallium oxide in methane partial oxidation catalysts: an experimental and theoretical study. Studies in Surface Science and Catalysis 136 , pp. 319-324.

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Abstract

We present new results on the activation of methane over pure and doped gallium oxide catalysts. This material was selected from our earlier work on methane to methanol conversion over mixed oxide systems. Calculations show that for defect free surfaces of the β-Ga2O3 phase only the (010) and (001) facets are stable, suggesting that the real crystal surfaces will be defective. We have attempted to increase the surface concentration of defects further by doping with divalent cations. Zn doping leads to a reduction in the temperature required for methane oxidation over β-Ga2O3 while Mg doping increases the intrinsic activity.

Item Type:	Article
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	gallium, analytic method; catalysis; combustion; conference paper; crystal structure; decomposition; oxidation; phase separation; reaction analysis; structure analysis; thermal analysis; thermodynamics
Additional Information:	cited By (since 1996) 2 Natural Gas Conversion 6
Publisher:	Elsevier
ISSN:	0167-2991
Last Modified:	05 Jan 2023 14:21
URI:	https://orca.cardiff.ac.uk/id/eprint/10301

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