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题名: Relationship between adsorption properties of Pt-Cu/SiO(2) catalysts and their catalytic performance for selective hydrodechlorination of 1,2-dichloroethane to ethylene
作者: Li, Lin1;  Wang, Xiaodong1;  Wang, Aiqin1;  Shen, Jianyi2;  Zhang, Tao1
关键词: Microcalorimetry ;  FTIR ;  Pt-Cu/SiO(2) catalysts ;  Hydrodechlorination reaction ;  1,2-Dichloroethane
刊名: THERMOCHIMICA ACTA
发表日期: 2009-10-10
DOI: 10.1016/j.tca.2009.04.025
卷: 494, 期:1-2, 页:99-103
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Microcalorimetric adsorption technique was employed to study the interaction of the reactants and product in the 1,2-dichloroethane hydrodechlorination over Pt/SiO(2). Cu/SiO(2) and Pt-Cu/SiO(2). catalysts in order to understand the high selectivity towards C(2)H(4) on the Pt/SiO(2) catalyst modified by Cu. When the adsorption properties of the reactants and product on bimetallic catalysts were compared with those on monometallic counterparts, significant differences in the strength and number of adsorption sites concerning the reactants and product were evidenced. The adsorption properties of the bimetallic catalysts could be attributed to the change in Pt surface structure modified by Cu, studied by the microcalorimetry and FTIR of CO adsorption. Relating the adsorption properties with high ethylene selectivity on bimetallic catalysts, we inferred that high ethylene selectivity on bimetallic catalysts could be attributed to the moderate adsorption and activation of reactants and product. This work gave the direct evidence of high C(2)H(4) selectivity in 1,2-dichloroethane hydrodechlorination reaction on the Pt-Cu/SiO(2) catalysts from the energetic point of view. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: COGELLED XEROGEL CATALYSTS ;  SOL-GEL CATALYSTS ;  BIMETALLIC CATALYSTS ;  PT-CU/C ;  DECHLORINATION ;  HYDROCARBONS ;  MECHANISM ;  METAL ;  CO ;  ETHYLIDYNE
语种: 英语
WOS记录号: WOS:000270689100014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141381
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.Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China

Recommended Citation:
Li, Lin,Wang, Xiaodong,Wang, Aiqin,et al. Relationship between adsorption properties of Pt-Cu/SiO(2) catalysts and their catalytic performance for selective hydrodechlorination of 1,2-dichloroethane to ethylene[J]. THERMOCHIMICA ACTA,2009,494(1-2):99-103.
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