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Promotion effects of CeO2 and Pd on Ni/gamma-Al2O3 catalyst
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
2002-04-01
DOI10.3866/PKU.WHXB20020407
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
关键词[WOS]CARBON-DIOXIDE ; PARTIAL OXIDATION ; SYNTHESIS GAS ; NI/AL2O3 CATALYST ; METHANE ; SYNGAS ; METALS ; CONVERSION
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.
语种英语
WOS记录号WOS:000175148800007
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139051
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, Dalian 116023, Peoples R China
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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.
APA Yang, YL,Xu, HY,&Li, WZ.(2002).Promotion effects of CeO2 and Pd on Ni/gamma-Al2O3 catalyst.ACTA PHYSICO-CHIMICA SINICA,18(4),321-325.
MLA Yang, YL,et al."Promotion effects of CeO2 and Pd on Ni/gamma-Al2O3 catalyst".ACTA PHYSICO-CHIMICA SINICA 18.4(2002):321-325.
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