DICP OpenIR
Interaction of NiO with gamma-Al2O3 supporter of NiO/gamma-Al2O3 catalysts
Zhang, YH; Xiong, GX; Sheng, SS; Liu, SL; Yang, WS
KeywordSol-gel Method Nio/gamma-al2o3 Ni Species Interaction Between Nio And Gamma-al2o3
Source PublicationACTA PHYSICO-CHIMICA SINICA
1999-08-01
DOI10.3866/PKU.WHXB19990813
Volume15Issue:8Pages:735-741
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordNICKEL
AbstractA 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.
Language英语
WOS IDWOS:000082370900013
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138539
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
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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