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题名: Promotion effects of CeO2 and Pd on Ni/gamma-Al2O3 catalyst
作者: Yang, YL;  Xu, HY;  Li, WZ
关键词: Ni/gamma-Al2O3 catalyst ;  CeO2 ;  noble metal Pd ;  carbon deposition by CH4 ;  carbon elimination by Co-2
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2002-04-01
DOI: 10.3866/PKU.WHXB20020407
卷: 18, 期:4, 页:321-325
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
英文摘要: The influence of the addition of n-type semiconductor oxide CeO2 and noble metal Pd to Ni/gamma-Al2O3 catalyst on carbon deposition by CH4 and carbon elimination by CO2 was studied by using a pulse microreaction as well as BET, TPR, CO2-TPSR and hydrogen chemisorption techniques. It was found that, the addition of n-type semiconductor CeO2 to Ni/gamma-Al2O3 catalyst could decrease carbon deposition activity of CH4 and increase carbon elimination ability of CO2; the addition of noble metal Pd could further alter the interaction between support Al2O3, promoter CeO2 and active phase Ni, as a result, the performance of resistance to carbon deposition of Ni/gamma-Al2O3 catalyst was improved. At the same time, a new explanation for the above promoting effect was put forward by the models of carbon deposition by CH4 and carbon elimination by CO2 on the Ni-Ce-Pd/gamma-Al2O3 catalyst.
关键词[WOS]: CARBON-DIOXIDE ;  PARTIAL OXIDATION ;  SYNTHESIS GAS ;  NI/AL2O3 CATALYST ;  METHANE ;  SYNGAS ;  METALS ;  CONVERSION
语种: 英语
WOS记录号: WOS:000175148800007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139051
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, Dalian 116023, Peoples R China

Recommended Citation:
Yang, YL,Xu, HY,Li, WZ. Promotion effects of CeO2 and Pd on Ni/gamma-Al2O3 catalyst[J]. ACTA PHYSICO-CHIMICA SINICA,2002,18(4):321-325.
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