Alumina-supported manganese- and manganese-palladium oxide catalysts for VOCs combustion

被引:129
作者
Alvarez-Galván, MC
O'Shea, VADP
Fierro, JLG
Arias, PL
机构
[1] Univ Basque Country, Sch Engineers, Dept Environm Chem & Engn, Bilbao 48013, Spain
[2] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain
关键词
D O I
10.1016/S1566-7367(03)00037-2
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
Alumina-supported manganese- and palladium-manganese oxide catalysts were prepared and tested in the combustion of formaldehyde. Total combustion of formaldehyde/methanol was achieved at 220degreesC over a 18.2% Mn/Al2O3 catalyst. This temperature decreased either to 90 or 80 upon adding 0.1% or 0.4% Pd, respectively, to the base 18.2% Mn/Al2O3 catalyst. The combined use of X-ray diffraction, temperature-programmed reduction and photoelectron spectroscopy (XPS) techniques revealed that a Mn4+/Mn3+ oxide(s) and PdOx species are present on the surface of the fresh catalysts and remain along the catalytic reaction. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:223 / 228
页数:6
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