New redox deposition-precipitation method for preparation of supported manganese oxide catalysts

被引：40

作者：

Barrio, I

Legórburu, I

Montes, M

Domínguez, MI

Centeno, MA

Odriozola, JA

机构：

[1] Univ Basque Country, Fac Quim San Sebastian, Dept Quim Aplicada, Grp Ingn Quim, San Sebastian 20018, Spain

[2] Univ Seville, Dept Quim Inorgan, Seville 41092, Spain

[3] Univ Seville, CSIC, Ctr Mixto, Inst Ciencia Mat Sevilla, Seville 41092, Spain

来源：

CATALYSIS LETTERS | 2005年 / 101卷 / 3-4期

关键词：

metallic monoliths; supported MnOx catalysts; VOCs abatement; redox deposition-precipitation synthesis;

D O I：

10.1007/s10562-005-4882-6

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：

A new preparation method has been developed to produce homogeneous coatings of manganese compounds on alumina-coated monoliths by redox deposition-precipitation using acetone as solvent. The deposition is produced by reduction of manganese permanganate with ethanol. The Lewis acid sites on the alumina catalyze this reaction. Thus, the precipitation is produced preferentially on the surface of the monolith and not in the bulk of the solution. Monoliths prepared by this method are very active for the complete oxidation of oxygenated volatile organic compounds (VOCs). These monoliths consist of a mixture of complex phases including aluminum, sulfated alumina, potassium sulfate and manganese oxide.

引用

页码：151 / 157

页数：7

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