Please use this identifier to cite or link to this item: https://localhost/jspui/handle/123456789/688
Title: THE ACTIVE PHASE (Ni2+) DISTRIBUTION IN Ni/γ-Al2O3 CATALYSTS PREPARED BY IMPREGNATION OF BIS(ETHYLENEDIAMINE)NICKEL(II) COMPLEXES
Authors: Ponminiessary P, Robinson
K K M, Yusuff
Chenampilly Ummer, Aniz
Vasudevan, Arun
Keywords: Cyclohexanol decomposition
Distribution profile
Ethylene diamine complexes
Impregnation
Viscosity
Issue Date: 19-Jan-2012
Publisher: Taylor & Francis
Citation: THE ACTIVE PHASE (Ni2+) DISTRIBUTION IN Ni/γ-Al2O3 CATALYSTS PREPARED BY IMPREGNATION OF BIS(ETHYLENEDIAMINE)NICKEL(II) COMPLEXES Ponminiessary P. Robinson , Vasudevan Arun , Karukapadath K. Abdul Rashid , Chennampilly Ummer Aniz & Karukapadath K. M. Yusuff Pages 321-334 | Published online: 19 Jan 2012 Download citation https://doi.org/10.1080/00986445.2011.591615
Abstract: Pore volume and wet impregnations were carried on γ-Al2O3 support spheres using [Ni(H2O)6](NO3)2 and [Ni(en)2(H2O)2]X2 complexes, where en = ethylenediamine and , Cl−, or CH3COO−. The distribution of nickel on the support was studied by optical microscopy and SEM-EDX. The use of ethylenediamine complexes leads to samples with nearly uniform profiles. The distribution is dependent on interaction of complexes with alumina, changes in viscosity during drying, and crystallization volume. Redistribution during drying is minimal for the ethylenediamine complexes. The study illustrates that increase in viscosity retards the convection distribution to outward migration. Cyclohexanol decomposition was studied as a test reaction and the results demonstrate that the macrodistribution of nickel oxide phase influences the product distribution.
URI: http://localhost:8080/xmlui/handle/123456789/688
Appears in Collections:5. Chemistry Research Publications

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