Catalytic properties of La0.8Sr0.2Co0.5M0.5O3 (M Co, Ni, Cu) in methane combustion1

被引：0
|
作者：
Wu Yue-hui
Luo Lai-tao
Liu Wei
机构：
[1] Nanchang Hangkong University,Department of Materials Chemistry
[2] Nanchang University,Institute of Applied Chemistry
来源：
Russian Journal of Physical Chemistry A | 2010年 / 84卷
关键词：
Perovskite; Temperature Program Reduction; Catalytic Combustion; Methane Combustion; Perovskite Type;
D O I：
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中图分类号：
学科分类号：
摘要：
A set of perovskite-type catalysts of general formula La0.8Sr0.2Co0.5M0.5O3 (M = Co, Ni, Cu) were prepared by alanine solution combustion method and used successfully for the methane combustion. The property of these materials were characterized by XRD, and TPR measurements. The effects of transition-metal ions on site B on structure and performance of the catalysts were studied. The result indicated that the structure and catalytic activities of the catalysts can remarkably affect by transition-metal ions on site B, the decrease of the electrons filled in d orbitals in the atom on site B is propitious to increase the catalytic activity for methane combustion, and the sequences of catalysts activities are La0.8Sr0.2CoO3 τ; Ce0.8Sr0.2CoO3 τ; Nd0.8Sr0.2CoO3.
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页码：405 / 408
页数：3
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