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题名: Effect of Pd loading and precursor on the catalytic performance of Pd/WO3-ZrO2 catalysts for selective oxidation of ethylene
作者: Wang, Lixia1, 2;  Xu, Shuliang1, 2;  Chu, Wenling1;  Yang, Weishen1
关键词: Pd/WO3-ZrO2 ;  Pd loading ;  Pd precursors ;  Polytungstates ;  Pd species
刊名: CATALYSIS TODAY
发表日期: 2010-01-15
DOI: 10.1016/j.cattod.2009.02.041
卷: 149, 期:1-2, 页:163-166
收录类别: SCI ;  ISTP
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The structure and properties of Pd/WO3-ZrO2 (W/Zr=0.2) catalysts with different Pd loadings and precursors were investigated. The results indicate that Pd/WO3-ZrO2 prepared from a PdCl2 precursor was optimum for high activity and selectivity. Moreover, ethylene conversion increased with the Pd loading The structure and nature of the catalysts were characterized using X-ray diffraction, BET N-2 adsorption, H-2 temperature-programmed reduction and H-2 pulse adsorption techniques The results reveal that the higher catalytic performance of Pd/WO3-ZrO2 prepared from PdCl2 could be related to the formation of polytungstate species and the existence of well-dispersed Pd particles. (C) 2009 Elsevier B.V All rights reserved
关键词[WOS]: ACETIC-ACID ;  SOL-GEL ;  PALLADIUM ;  ISOMERIZATION ;  PD/AL2O3
语种: 英语
WOS记录号: WOS:000274145600026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141845
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Lixia,Xu, Shuliang,Chu, Wenling,et al. Effect of Pd loading and precursor on the catalytic performance of Pd/WO3-ZrO2 catalysts for selective oxidation of ethylene[J]. CATALYSIS TODAY,2010,149(1-2):163-166.
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