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Ethanol electrooxidation on Pt-Sn and Pt-Sn-W bulk alloys
(Sociedade Brasileira de Química, 2008)
Ethanol oxidation has been studied on Pt-Sn and Pt-Sn-W electrodes prepared in an arc-melting furnace. Different electrochemical techniques like cyclic voltammetry and chronoamperometry were used to evaluate the catalytic ...
Synthesis, characterization and evaluation of the photocatalytic properties of WO3 obtained through the polyol methodSíntese, caracterização e avaliação das propriedades fotocatalíticas do WO3 obtido através do método poliol
(2021-01-01)
This work shows a synthetic route mediated by tetraethylene glycol (P. E. 325 ° C) in which tungstic acid is used as the starting material. The formation of a stable blue suspension was observed during the course of the ...
Síntesis, caracterización y evaluación catalítica en la HDS de DBT de catalizadores de NiMoW soportados en HMS pura y modificada con aluminio
(Universidad Michoacana de San Nicolás de Hidalgo, 2012-03)
Materials were prepared hexagonal mesoporous silica (HMS) and modified pure aluminum (Al-HMS) and used as supports for hydrotreating catalysts based on nickel, molybdenum and tungsten. The catalysts were prepared by the ...
Extensión del uso de catalizadores superácidos para la transformación de hidrocarburos pesados
(2009-06-26)
La Tesis Doctoral estudia el desarrollo de alternativas para extender el uso de catalizadores superácidos a la transformación de cortes de hidrocarburos parafínicos pesados, provenientes de diversas fuentes como son los ...
In situ quantification of the active acid sites of H6P2W18O62·nH 2O heteropoly-acid through chemisorption and temperature programmed surface reaction of isopropanol
(Elsevier Science, 2004-06)
Isopropanol chemisorption and temperature programmed surface reaction analyses were used to determine the nature, amount and acid strength of the active sites of bulk WO3, monolayer supported tungsten oxide over titania ...