Synthesis and comparison of the activities of a catalyst supported on two silicate materials

Author(s)

Vieira, Eduardo G. ; Silva, Rafael O. ; do Carmo, Devaney R. ; Junior, Enes F. ; Dias Filho, Newton L.

• Document type: Journal article
• Source: Materials Chemistry and Physics; v. 191, p. 197-205, APR 15 2017.
• Web of Science Citations: 2

Abstract

The focus of this work is inspecting the synthesis and comparison of the activities of a catalyst supported on two silicate materials in the epoxidation of 1-octene. The two new catalyst materials were characterized by infrared spectroscopy, elemental analysis, solid-state Si-29 and C-13 nuclear magnetic resonance, scanning electronic microscope (SEM) and analysis of nitrogen. Lastly, the two new catalysts, SilsesqTCA-1(W(CO)(3)I-2)(3)] and Silica-TCA-{[}W(CO)(3)I-2] were tested as catalysts in reactions of epoxidation of 1octene and compared with their analogue not supported {[}W(C0)3I2(thiocarbamide)]. After an extensive literature search, we verified that our work is the first that has reported the immobilization process of {[}W(C0)(3)I-2(NCCH3)(2)] on silsesquioxane and silica gel functionalized with propyl-thiocarbamide groups and their applications as catalysts of reactions of catalytic epoxidation of 1-octene. (C) 2017 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 14/05566-5 - Study of the reactions of immobilization of tungsten and molybdenum organometallic complexes on the polyhedral oligomeric silsesquioxanes for application in catalysis
• Grantee: Eduardo Guimarães Vieira
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 13/24602-0 - Synthesis and characterization of polyhedral oligomeric silsesquioxanes and their applications in process of adsorption and catalysis
• Grantee: Newton Luiz Dias Filho
• Support Opportunities: Regular Research Grants