Methane complete and partial oxidation catalyzed by Pt-doped CeO 2

Tang, Wei, Hu, Zhenpeng, Wang, Miaojun, Stucky, Galen D., Metiu, Horia and McFarland, Eric W. (2010) Methane complete and partial oxidation catalyzed by Pt-doped CeO 2. Journal of Catalysis, 273 2: 125-137. doi:10.1016/j.jcat.2010.05.005


Author Tang, Wei
Hu, Zhenpeng
Wang, Miaojun
Stucky, Galen D.
Metiu, Horia
McFarland, Eric W.
Title Methane complete and partial oxidation catalyzed by Pt-doped CeO 2
Journal name Journal of Catalysis   Check publisher's open access policy
ISSN 0021-9517
1090-2694
Publication date 2010-07-28
Sub-type Article (original research)
DOI 10.1016/j.jcat.2010.05.005
Open Access Status
Volume 273
Issue 2
Start page 125
End page 137
Total pages 13
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Abstract We have studied catalytic activity of Pt-doped CeO2 for the oxidation and the dry reforming of methane. The catalyst was prepared by three methods resulting in ceria containing different ratios of ionic Pt versus Pt0. We show that these materials have different catalytic activity for methane oxidation and dry reforming and that they are more active when the fraction of ionic Pt is increased. Density functional theory was used to help understand the role of Pt dopant. It was found that the presence of Pt activates the oxygen atoms next to it in the surface layer and this decreases the activation energy for dissociative adsorption of methane (which is the rate-limiting step in the reaction).
Keyword Doped metal oxide
Dry reforming
Methane activation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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