Combinatorial synthesis and characterization of alkali metal doped oxides for diesel soot combustion

被引：83

作者：

An, HM ^{[1
]}

Kilroy, C ^{[1
]}

McGinn, PJ ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem & Biomol Engn, Ctr Molecularly Engineered Mat, Notre Dame, IN 46556 USA

来源：

CATALYSIS TODAY | 2004年 / 98卷 / 03期

关键词：

combinatorial synthesis; oxide catalysts; diesel soot combustion;

D O I：

10.1016/j.cattod.2004.08.006

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A polymerizable-complex powder synthesis method (PCM) was used in conjunction with automated solution deposition to generate combinatorial libraries of oxide powders doped with alkali metals. Chemical compositions were serially examined with automated thermogravimetric analysis for catalytic activity in the combustion of diesel soot. The relative soot combustion activity of KxLa1-xFeO3, FeO3, A(2x)Cu(1-x)Fe(2)O(4) and A(2x)Co(1-x)Fe(2)O(4) (A = Li, Na, K, Cs) are reported. In both of the alkali-metal doped systems, K was the best promoter of soot oxidation, In all three systems, K-rich samples in the "mixed" range (x = 0.6-0.9) generally show the lowest soot oxidation temperatures. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：423 / 429

页数：7

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