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.
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页码：8433 / 8440
页数：8
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