Mechanochemically synthesized nano-dimensional iron-cobalt spinel oxides as catalysts for methanol decomposition

被引：87

作者：

Manova, E

Tsoncheva, T

Paneva, D

Mitov, I

Tenchev, K

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

来源：

APPLIED CATALYSIS A-GENERAL | 2004年 / 277卷 / 1-2期

关键词：

iron-cobalt spinel oxides; nanostructures; mechanosynthesis; Moessbauer spectroscopy; methanol decomposition;

D O I：

10.1016/j.apcata.2004.09.002

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：

Iron-cobalt spinel oxide nanoparticles with different Fe/Co ratios have been prepared by the combination of chemical precipitation with simultaneous ultrasonic treatment and subsequent mechanical milling. For comparison, their analogues obtained by thermal synthesis were also studied. Phase composition and structural properties of iron-cobalt oxides are investigated by X-ray diffraction and Moessbauer spectroscopy. Their catalytic behavior in methanol decomposition to CO and methane is tested. A well-defined effect of the preparation method and Fe/Co ratio on the reduction and catalytic properties of iron-cobalt samples is established. (C) 2004 Elsevier B.V. All rights reserved.

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页码：119 / 127

页数：9

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