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THE CHARACTERISTIC BEHAVIOR OF H-2 AND O-2 OVER CeO2 AND Pt/CeO2 CATALYSTS
Chen Yanxin; Li Can; Li Wenzhao; Chen Yixuan
关键词Catalyst Oxidation Ceo2 Pt
刊名ACTA PHYSICO-CHIMICA SINICA
1992
DOI10.3866/PKU.WHXB19920406
8期:4页:452-458
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
英文摘要The characteristic behavior of H-2 and O-2 over CeO2 and Pt/CeO2 was studied by means of TPR,TPD,FTIR and TPEC. The reduction of CeO2 by H-2 is greatly pro moted by supported Pt and highly labile adsorbed species is resulted. The tempera tures of sorption and liberation of H-2 on Pt/CeO2 are lowered by as much as 300 degrees C than on CeO2. The oxygen adsorbed on partially reduced CeO2 exists as dioxygen species(O-2(-),O-2(2-)) at room temperature. On Pt/CeO2 the oxygen species is altered and the dissociated species is formed even at ambient condition. The adsorbed oxygen on cerium oxide catalysts desorbs partly while the temperature is elevated and the retained oxygen is transformed into lattice oxygen ion above 170 degrees C.
语种英语
WOS记录号WOS:000207574400006
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139424
专题中国科学院大连化学物理研究所
作者单位Acad Sinica, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Chen Yanxin,Li Can,Li Wenzhao,et al. THE CHARACTERISTIC BEHAVIOR OF H-2 AND O-2 OVER CeO2 AND Pt/CeO2 CATALYSTS[J]. ACTA PHYSICO-CHIMICA SINICA,1992,8(4):452-458.
APA Chen Yanxin,Li Can,Li Wenzhao,&Chen Yixuan.(1992).THE CHARACTERISTIC BEHAVIOR OF H-2 AND O-2 OVER CeO2 AND Pt/CeO2 CATALYSTS.ACTA PHYSICO-CHIMICA SINICA,8(4),452-458.
MLA Chen Yanxin,et al."THE CHARACTERISTIC BEHAVIOR OF H-2 AND O-2 OVER CeO2 AND Pt/CeO2 CATALYSTS".ACTA PHYSICO-CHIMICA SINICA 8.4(1992):452-458.
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