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Preparation and modification of hybrid silica spheres for catalytic transesterification

Grant number: 16/21033-2
Support type:Scholarships in Brazil - Master
Effective date (Start): April 01, 2017
Effective date (End): March 31, 2019
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Dilson Cardoso
Grantee:Iago William Zapelini
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Biodiesel have been much studied in the last years because of the necessity of alternatives to fossil fuels. Actually, homogeneous catalytic processes are used to produce this biofuel; these processes demand purification and separation steps to remove the soluble catalyst. In this sense, many heterogeneous catalysts are studied to provide the substitution of homogeneous processes, highlighting hybrid silica. The synthesis of mesoporous silica using cationic surfactants can generate strong basic sites, what make this material active in catalytic transesterification, route for biodiesel production.Pretending to increase the activity of mesoporous silica in catalytic transesterification, this project objectives evaluate the effect of tuning on the surface of hybrid silica spheres by different processes. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ZAPELINI, IAGO W.; SILVA, LAURA L.; OLIVEIRA, CRISTIANO L. P.; CARDOSO, DILSON. Enhancing the accessibility to basic sites of as-synthesized silicas applied in catalytic transesterification. Applied Surface Science, v. 507, . (16/21033-2)
BEZERRA, D. M.; ZAPELINI, I. W.; FRANKE, K. N.; RIBEIRO, M. E.; CARDOSO, D.. Investigation of the structural order and stability of mesoporous silicas under a humid atmosphere. MATERIALS CHARACTERIZATION, v. 154, p. 103-115, . (16/21033-2)

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