In:
ChemCatChem, Wiley, Vol. 8, No. 13 ( 2016-07-06), p. 2296-2306
Abstract:
Mn‐doped ceria zirconia thin films (Mn x Ce 1− x − y Zr y O 2 , MCZ) were employed as flat model catalyst surfaces for CH 4 activation. MCZ films exhibit characteristics of single crystal and powder materials, such as smooth surfaces and porosity. From molecular‐beam studies, it has been identified that the oxygen storage capacity increases with Mn content. Mutually exclusive observation of H 2 O or a mixture of products (CO 2 +CO+H 2 ) occurs, when the reactants was allowed to react directly on MCZ, underscoring their formation or prevention (and consumption), respectively. The results suggest that there is competition and cooperation among different elementary reactions under complementary conditions. From a significant partial oxidation of CH 4 through C−H activation, it is found that formation of syngas begins at 700 K and the reaction rate increases with increasing temperature. Kinetic evidences indicate that the reaction proceeds through a combustion–reformation pathway.
Type of Medium:
Online Resource
ISSN:
1867-3880
,
1867-3899
DOI:
10.1002/cctc.201600365
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
2501161-3
