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Esterificação de glicerol com ácido benzoico sobre zeólitas H-ZSM-5 hierárquicas incorporadas com Zr ou Nb
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2020-03-19)
Acid zeolites are microporous aluminosilicates, which exhibit negative charged AlO4- tetrahedrons in its lattice balanced by protons (H+), generating Brønsted acid sites (BAS). The Lewis acidity of zeolites is commonly ...
Síntese de um novo organocatalisador derivado da d-galactose e aplicação em reação do tipo Michael
(Universidade Federal de Juiz de ForaBrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em QuímicaUFJF, 2016)
Abordagem organocatalítica, utilizando o (+/-)-ácido canforsulfônico, para a síntese de dipeptídeos através de azalactonas
(Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de FarmáciaPrograma de Pós-graduação em Ciências FarmacêuticasUFJF, 2016)
Assessment of surface acidity in mesoporous materials containing aluminum and titanium
(Elsevier Science, 2009-04-01)
The surface acidity of mesoporous molecular sieves of aluminum and titanium was evaluated using four different techniques: n-butylamine volumetry, cyclohexylamine thermodesorption, temperature-programmed desorption of ...
Tailored Brønsted and Lewis surface acid sites of the phosphotungstic Wells Dawson heteropoly-acid
(Elsevier Science, 2019-11)
The synthesis of transition metals Wells Dawson heteropoly salts along with their elemental composition, water content, structure and specific surface area were thoroughly investigated. Additionally, the use of a molecular ...
Catalytic activity for synthesis of isomerized products from benzene over platinum supported sulfated zirconia
(Elsevier Science, 2001-12)
The catalytic activity of Pt/SO42-/ZrO2 in the benzene hydrogenation and isomerization reaction at 250°C is superior to that of other Pt/conventional solid acid catalysts such as Pt/HY-zeolite and Pt/H-mordenite. The ...