DICP OpenIR
Pt L-III-edge XANES and EXAFS studies on gamma-Al2O3 supported Pt catalysts
Jia, JF; Kou, Y; Lin, LW; Xu, ZS; Zhang, T; Niu, JZ; Liang, DB
KeywordXanes Pt Gamma-al2o3
Source PublicationREACTION KINETICS AND CATALYSIS LETTERS
1998-03-01
Volume63Issue:2Pages:391-396
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordABSORPTION
AbstractPt L-M-edge XANES and EXAFS were employed to investigate the nature of Pt/gamma-Al2O3, Pt-Sn/gamma-Al2O3 and Pt-Fe/gamma-Al2O3 catalysts. The results indicated that Pt species on these catalysts were all in the oxidized states before reduction, and in the metallic states after reduction. The dispersity of the Pt species on the catalysts was very high after reduction. The electronic properties of the highly dispersed Pt species were different from that of the bulk Pt in large crystallites. An interaction between Pt and the metal-oxide modified gamma-Al2O3 support is proposed. The interaction improved the dispersity of the Pt species on the catalysts and is thought to be the reason for the enhanced activity and selectivity for dehydrogenation reactions over these catalysts.
Language英语
WOS IDWOS:000073219500028
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138467
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Jia, JF,Kou, Y,Lin, LW,et al. Pt L-III-edge XANES and EXAFS studies on gamma-Al2O3 supported Pt catalysts[J]. REACTION KINETICS AND CATALYSIS LETTERS,1998,63(2):391-396.
APA Jia, JF.,Kou, Y.,Lin, LW.,Xu, ZS.,Zhang, T.,...&Liang, DB.(1998).Pt L-III-edge XANES and EXAFS studies on gamma-Al2O3 supported Pt catalysts.REACTION KINETICS AND CATALYSIS LETTERS,63(2),391-396.
MLA Jia, JF,et al."Pt L-III-edge XANES and EXAFS studies on gamma-Al2O3 supported Pt catalysts".REACTION KINETICS AND CATALYSIS LETTERS 63.2(1998):391-396.
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