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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
KeywordCatalyst Oxidation Ceo2 Pt
Source PublicationACTA PHYSICO-CHIMICA SINICA
1992
DOI10.3866/PKU.WHXB19920406
Volume8Issue:4Pages:452-458
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
AbstractThe 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.
Language英语
WOS IDWOS:000207574400006
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139424
Collection中国科学院大连化学物理研究所
AffiliationAcad Sinica, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
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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