Preparation and modification of hybrid silica spheres for catalytic transesterification

• Grant number: 16/21033-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: April 01, 2017
• End date: March 31, 2019
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Dilson Cardoso
• Grantee: Iago William Zapelini
• Host 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)

Scientific publications

(4)

(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, MAR 30 2020. (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, AUG 2019. (16/21033-2)

ZAPELINI, IAGO WILLIAM; SILVA, LAURA LORENA; CARDOSO, DILSON. The role of alcohols on the accessibility of basic =SiO- sites in hybrid silicas for catalytic transesterification. Brazilian Journal of Chemical Engineering, v. N/A, p. 8-pg., 2023-06-23. (16/21033-2)

SILVA, LAURA L.; ZAPELINI, IAGO W.; CARDOSO, DILSON. Catalytic transesterification by hybrid silicas containing C(n)TA(+) surfactants. CATALYSIS TODAY, v. 356, p. 7-pg., 2020-10-01. (16/21033-2)