Buscar
Mostrando ítems 21-30 de 76
Acidic V-MCM-41 catalysts for the liquid-phase ketalization of glycerol with acetone
(Elsevier Science, 2019-01)
SiMCM-41 and V-MCM-41 were hydrothermally synthesized with different quantities of vanadium, characterized by small angle X-ray scattering, nitrogen physisorption, and the insertion of vanadium was assessed by temperatur ...
Thermal stability and the magnetic properties of hybrid vanadium oxide-tetradecylamine nanotubes
(AMER INST PHYSICSMELVILLE, 2012)
Vanadium oxide nanotubes (NTs) were synthesized by the sol-gel method followed by a long-term hydrothermal treatment. The obtained nanotubes have a multiwall structure, and 70% of vanadium ions are in the V4+ state. This ...
Effect of iron and vanadium on the phase transition of titanium dioxide obtained by polymeric precursor method
(2017-01-01)
The titanium dioxide phase formation is dependent on the synthesis method, temperature of calcination and modifiers insertion. By using chemical methods, such as Polymeric Precursor Method, the organic impurities or extrinsic ...
Reações de valorização do glicerol utilizando sílica mesoporosa modificada com vanádio
(Universidade Estadual Paulista (Unesp), 2019-03-29)
SiMCM-41 e V-MCM-41 foram sintetizados por via hidrotérmica com diferentes quantidades de vanádio. As caracterizações foram realizadas por Espalhamento de raios X a ângulo pequeno (SAXS), Fisissorção de nitrogênio, Ressonância ...
Síntese, caracterização e avaliação biológica de complexos de vanádio e de ouro com bases de Schiff e benzimidazóis
(Universidade Federal de Juiz de ForaBrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em QuímicaUFJF, 2016)
High throughput approaches to unravel the mechanism of action of a new vanadium-based compound against Trypanosoma cruzi
(Hindawi, 2020)
Treatment for Chagas disease, a parasitosis caused by Trypanosoma cruzi, has always been based on two drugs, nifurtimox and benznidazole, despite the toxic side effects described after prolonged prescription. In this work, ...