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Title Comparison of the structural configuration of Cо nanoparticles on Ti02 and TNT supports
Authors Afolabi, A.S.
Abdulkareem, A.S.
Malose, M.M.
Muzenda, E.
ORCID
Keywords catalyst
configuration
support
Type Conference Papers
Date of Issue 2011
URI http://essuir.sumdu.edu.ua/handle/123456789/20606
Publisher Sumy State University
License
Citation Comparison of the structural configuration of Cо nanoparticles on Ti02 and TNT supports [Текст] / A. S. Afolabi, A. S. Abdulkareem, M. M. Malose, E. Muzenda // Nanomaterials: applications & properties. Proceedings : 1-st International conference, Alushta, Crimea, 27-30 Semptember 2011 / Edited by: A. Pogrebnjak, T. Lyutyy, S. Protsenko. — Sumy : Sumy State University, 2011. — V.2, P.І. — C. 93-100.
Abstract In this study, two cobalt based catalyst samples were prepared on titania and tita- nia nanotubes supports using the deposition precipitation method. Their structural con- figurations were characterized and compared using BET, and TRP analyses. The BET analysis showed that the surface area of TiO2 is much higher than that of TNT which was due to their structural differences. Analyses of the results obtained revealed that the surface area of the 10%Co/TNT catalyst sample is higher than that of the 10%Co/TiO2. The TPR analysis showed that it is much easier to reduce 10%Co/TiO2, than 10%Co/TNT. This is attributed to be due to the fact that the cobalt particles were ad- sorbed on the surface of the TiO2, and formed covalent bonds with TNT. Therefore reduction temperature was higher with TNT than TiO2. The investigation of structural changes of these catalysts when they were coated with carbon, using chemical vapour deposition method was also conducted. The catalyst prepared on TNT support showed better properties in terms of average pore diameter, pore volume and surface area than the catalyst sample prepared on TiO2 support when the two samples were exposed to carbon environment for the same period of time. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/20606
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