Synthesis and Characterization of Molecular Sieve SBA-15 and Catalysts Co/SBA-15 and Ru/Co/SBA-15

Abstract:

A series of mesoporous materials have been synthesized in an acid medium, with various structures, such as SBA-15. These materials have many properties which make them potential catalysts. Among these we highlight their high surface areas and pore walls relatively thick, resulting in a greater hydrothermal stability. This work aims at the synthesis and characterization of molecular sieve SBA-15 with molar composition: 1.0 TEOS: 0.017 P123: 5.7 HCl: 193 H₂O and Co/SBA-15 and catalysts for the reaction of Ru/Co/SBA-15 Fischer Tropsch process. The materials were characterized by the techniques of X-ray diffraction (XRD), chemical analysis by X-ray spectrometry, energy dispersive (EDX) and Nitrogen adsorption (BET method). X-ray diffraction showed that the calcined cobalt catalyst did not modify the structure of SBA-15 and that Co was present under the form of Co3O4 in the catalyst. The addition of cobalt in the SBA-15 decreased the specific superficial area of the molecular sieve.

• Periodical: Materials Science Forum (Volumes 798-799)
• Pages: 100-105
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.798-799.100
• Online since: June 2014
• Authors: Jocielys Jovelino Rodrigues*, Liliane Andrade Lima, Gustavo Medeiros de Paula, Meiry Glaúcia Freire Rodrigues
• Keywords: Cobalt, Heterogeneous Catalyst, Ruthenium, SBA-15

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