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Interaction of NiO with gamma-Al2O3 supporter of NiO/gamma-Al2O3 catalysts
Zhang, YH; Xiong, GX; Sheng, SS; Liu, SL; Yang, WS
关键词Sol-gel Method Nio/gamma-al2o3 Ni Species Interaction Between Nio And Gamma-al2o3
刊名ACTA PHYSICO-CHIMICA SINICA
1999-08-01
DOI10.3866/PKU.WHXB19990813
15期:8页:735-741
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]NICKEL
英文摘要A series of NiO/ gamma-Al2O3 catalysts were prepared by sol-gel method. The effects of the methods of preparation, the nickel content and the calcined temperature on the structure and existing forms of nickel species of NiO/ gamma-Al2O3 catalysts were investigated using XRD, XPS and TPR, The results suggested that the interaction between NiO and gamma-Al2O3 affected the oxidic nickel speies. Nickel oxide was found to appear in the catalysts in three forms, as "free", "dispersed" and "fixed" oxides. The occurrence of the fixed form of the oxide in the catalysts was connected with the formation of nickel aluminate. The effect of the reaction of these different nickel species on the performance of the catalysts was dicussed. For the catalysts prepared by sol-gel method, after calcined at higher temperature, nickel species present as a spinel-like structure solid solution, which could restrain nickel loss and sintering and improve the thermal stability of catalysts.
语种英语
WOS记录号WOS:000082370900013
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被引频次:30[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/321008/138539
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
Zhang, YH,Xiong, GX,Sheng, SS,et al. Interaction of NiO with gamma-Al2O3 supporter of NiO/gamma-Al2O3 catalysts[J]. ACTA PHYSICO-CHIMICA SINICA,1999,15(8):735-741.
APA Zhang, YH,Xiong, GX,Sheng, SS,Liu, SL,&Yang, WS.(1999).Interaction of NiO with gamma-Al2O3 supporter of NiO/gamma-Al2O3 catalysts.ACTA PHYSICO-CHIMICA SINICA,15(8),735-741.
MLA Zhang, YH,et al."Interaction of NiO with gamma-Al2O3 supporter of NiO/gamma-Al2O3 catalysts".ACTA PHYSICO-CHIMICA SINICA 15.8(1999):735-741.
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