Electron Paramagnetic Resonance Analysis of La1-xMxMnO3+δ (M = Ce, Sr) Perovskite-Like Nanostructured Catalysts

被引：10

作者：

Oliva, Cesare ^{[1
]}

Allieta, Mattia

Scavini, Marco

Biffi, Cesare

Rossetti, Ilenia

Forni, Lucio

机构：

[1] Univ Milan, Dipartimento Chim, I-20133 Milan, Italy

来源：

INORGANIC CHEMISTRY | 2012年 / 51卷 / 15期

关键词：

THERMOELECTRIC-POWER; FLAME-PYROLYSIS; LANTHANUM MANGANITES; CONDUCTIVITY; TEMPERATURE; COMBUSTION; OXIDES; LA1-XCAXMNO3+DELTA; NONSTOICHIOMETRY; ABSORPTION;

D O I：

10.1021/ic300977e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The physical-chemical properties of some nanostructured perovskite-like catalysts of general formula La1-xMxMnO3+delta (M = Ce, Sr) have been investigated, in particular by using the electron paramagnetic resonance (EPR) technique. We show that the interplay between the -O-Mn3+-O-Mn4+-O- electron double-exchange and the electron mobility is strictly dependent on the dopant nature and the annealing conditions in air. A relationship between the observed properties of these samples and their activity in the methane flameless catalytic combustion is proposed.

引用

页码：8433 / 8440

页数：8

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