Nanosized iron and iron-cobalt spinel oxides as catalysts for methanol decomposition

被引:98
作者
Manova, E
Tsoncheva, T
Estournès, C
Paneva, D
Tenchev, K
Mitov, I
Petrov, L
机构
[1] Bulgarian Acad Sci, Inst Catalysis, BU-1113 Sofia, Bulgaria
[2] Bulgarian Acad Sci, Inst Organ Chem, BU-1113 Sofia, Bulgaria
[3] Univ Toulouse 3, CNRS, UPS, INP,PNF2,CIRIMAT,UMR 5085, F-31062 Toulouse 04, France
关键词
nanoparticles; iron and/or cobalt oxide catalysts; Mossbauer spectroscopy; methanol decomposition; magnetism;
D O I
10.1016/j.apcata.2005.11.005
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nanosized iron and mixed iron-cobalt oxides supported on activated carbon materials and their bulk analogues prepared by thermal synthesis are studied by X-rays diffraction, Mossbauer spectroscopy, magnetic measurements and temperature programmed reduction. Their catalytic behavior in methanol decomposition to H-2, CO and methane is tested. Phase transformations in the metal oxides affected by the reaction medium are also investigated. Changes in the reaction mechanism of the methanol decomposition after the metal oxides deposition on the support as compared to the bulk phases are discussed. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:170 / 180
页数:11
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