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Structural features and catalytic properties of Pt/CeO2 catalysts prepared by modified reduction-deposition techniques
Tang, XL; Zhang, BC; Li, Y; Xu, YD; Xin, Q; Shen, WJ
关键词Complete Oxidation Dme Hcho Liquid Phase Reduction Modified Polyol Method Pt/ceo2
刊名CATALYSIS LETTERS
2004-09-01
97期:3-4页:163-169
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]DIMETHYL ETHER ; OXIDATION ; CO ; NANOPARTICLES ; NANOCLUSTERS ; CEO2 ; GAS ; RU ; PD
英文摘要The structural features and catalytic properties of Pt/CeO2 catalysts prepared by liquid phase reduction-deposition techniques with formaldehyde and ethylene glycol as reducing agents, respectively, were investigated. TPR and CO pulse titration measurements revealed that smaller particle size and uniform dispersion of platinum were achieved by modified polyol preparation process, which is beneficial to generate appropriate Pt-O-Ce chemical bonding. XPS analysis further demonstrated the presence of strong metal-support interaction in above Pt/CeO2 catalyst. It was observed that the reducing ability and the solvent effect play important roles in controlling the formation of nuclei as well as its growth rate. The sample prepared by modified polyol method exhibited higher catalytic activities and longer stability for the complete oxidation of dimethyl ether than Pt/CeO2 catalyst prepared by HCHO liquid phase reduction.
语种英语
WOS记录号WOS:000223403000010
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被引频次:19[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/321008/138461
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Tang, XL,Zhang, BC,Li, Y,et al. Structural features and catalytic properties of Pt/CeO2 catalysts prepared by modified reduction-deposition techniques[J]. CATALYSIS LETTERS,2004,97(3-4):163-169.
APA Tang, XL,Zhang, BC,Li, Y,Xu, YD,Xin, Q,&Shen, WJ.(2004).Structural features and catalytic properties of Pt/CeO2 catalysts prepared by modified reduction-deposition techniques.CATALYSIS LETTERS,97(3-4),163-169.
MLA Tang, XL,et al."Structural features and catalytic properties of Pt/CeO2 catalysts prepared by modified reduction-deposition techniques".CATALYSIS LETTERS 97.3-4(2004):163-169.
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