Preparation of La-Mn-O Perovskite Catalyst by Microwave Irradiation Method and its Application to Methane Combustion
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- 作者：Yujun Zhu ; Yueqiu Sun ; Xiaoyu Niu ; Fulong Yuan and Honggang Fu
- 关键词：La ; Mn ; O perovskite ; Methane ; Combustion ; Microwave irradiation processing
- 刊名：Catalysis Letters
- 出版年：2010
- 出版时间：March, 2010
- 年：2010
- 卷：135
- 期：1-2
- 页码：152-158
- 全文大小：588.3 KB
文摘
La-Mn-O perovskite catalyst was successfully prepared by microwave irradiation processing using only several minutes for heat treatment, and characterized by XRD, SEM, XPS, H2-TPR and O2-TPD. The catalyst by microwave irradiation processing with 6 min, mainly non-stoichiometric excess oxygen LaMnO3.15 phase, shows excellent catalytic performance. Compared with the sample prepared by conventional method, it possesses relative higher surface area, the increase in Mn4+ and oxygen vacancy content and the enhancement in the mobility of lattice oxygen which play an important part in the methane combustion.