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题名: Studies of CaTiO3 based catalysts for the oxidative coupling of methane
作者: Yu, CY;  Li, WZ;  Martin, GA;  Mirodatos, C
关键词: CaTiO3 based catalysts ;  oxidative coupling of methane ;  electrical conductivity
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 1997-09-25
卷: 158, 期:1-2, 页:201-214
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: A series of Li- and Mg-doped CaTiO3 catalysts were studied and the role of oxygen species, surface basicity, semi-conductivity as well as the mechanism of methyl radical formation were investigated by means of electrical conductivity measurements, oxygen TPD, TP reaction with methane and CH4/CD4 equilibration in relation with the catalytic properties in the oxidative coupling of methane (OCM). A clear relationship between the p-type conductivity, possibly concomitant with anionic conductivity, and catalytic performance was demonstrated, confirming previous hypotheses. Furthermore it was shown that the ability to activate surface oxygen paralleled these parameters. These results combined with the indications yielded by other experiments provided further insights in the nature of sites leading to the selective and unselective reaction.
关键词[WOS]: DOPED SRTIO3 ;  CONVERSION ;  HYDROCARBONS ;  SELECTIVITY ;  TRANSIENT ;  MGO
语种: 英语
WOS记录号: WOS:A1997XY72500016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142786
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.INST RECH CATALYSE, F-69626 VILLEURBANNE, FRANCE
2.CHINESE ACAD SCI, DALIAN INST CHEM PHYS, DALIAN 116023, PEOPLES R CHINA

Recommended Citation:
Yu, CY,Li, WZ,Martin, GA,et al. Studies of CaTiO3 based catalysts for the oxidative coupling of methane[J]. APPLIED CATALYSIS A-GENERAL,1997,158(1-2):201-214.
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