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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
关键词Xanes Pt Gamma-al2o3
刊名REACTION KINETICS AND CATALYSIS LETTERS
1998-03-01
63期:2页:391-396
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
关键词[WOS]ABSORPTION
英文摘要Pt 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.
语种英语
WOS记录号WOS:000073219500028
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138467
专题中国科学院大连化学物理研究所
作者单位1.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
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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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