Catalytic combustion of methane over cobalt doped lanthanum stannate pyrochlore oxide

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	Catalytic combustion of methane over cobalt doped lanthanum stannate pyrochlore oxide
	Cheng, Jie ; Wang, Hailing ; Hao, Zhengping ; Wang, Shaobin
刊名	CATALYSIS COMMUNICATIONS
	2008-03-20
卷号	9 期号:5 页码:690-695
关键词	methane catalytic combustion lanthanum stannate pyrochlore metal ion doping
英文摘要	A series of La2CoxSn2-xO7-delta oxides with pyrochlore structure have been synthesized by the co-precipitation method as high-temperature catalysts for methane combustion. The dopant strongly influences the thermal stability and redox properties of these pyrochlores. IR measurements show that the Sn-O bond strength was weakened with increasing amount of Co doped in the La2Sn2O7, thus promoting the formation of oxygen vacancy. The reduction rates and the amount of oxygen vacancy would significantly affect catalytic activities of La2CoxSn2-xO7-delta in CH4 oxidation. Among the doped pyrochlores, La2Co0.3Sn1.7O7-delta and La2Co0.5Sn1.5O7-delta possessed optimum activities for methane combustion at low and high temperature, respectively. (c) 2007 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000253450900026
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22040]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Cheng, Jie,Wang, Hailing,Hao, Zhengping,et al. Catalytic combustion of methane over cobalt doped lanthanum stannate pyrochlore oxide[J]. CATALYSIS COMMUNICATIONS,2008,9(5):690-695.
APA	Cheng, Jie,Wang, Hailing,Hao, Zhengping,&Wang, Shaobin.(2008).Catalytic combustion of methane over cobalt doped lanthanum stannate pyrochlore oxide.CATALYSIS COMMUNICATIONS,9(5),690-695.
MLA	Cheng, Jie,et al."Catalytic combustion of methane over cobalt doped lanthanum stannate pyrochlore oxide".CATALYSIS COMMUNICATIONS 9.5(2008):690-695.