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Characterization and butanol/ethanol sensing properties of mixed tungsten oxide and copper tungstate films obtained by spray-sol-gel
(Lima (Perú), 2003-07)
Mixed WO3 – CuWO4 films have been prepared from aqueous solution of copper sulfate and polytungsten gel with molar ratio Cu/W from 0 to 100 %. These solutions were sprayed onto alumina substrates at 220 ºC. The obtained ...
Diseño y construcción de un sistema para la supervisión in-situ del crecimiento de una película delgada de ZnO fabricada por rociado pirolítico
(Lima (Perú), 2005-08)
Se implementó un sistema que supervisa in-situ el espesor y calcula el perfil de una película delgada fabricada por la técnica de rociado pirolítico. El sistema se basa en la medición de la reflexión de un haz láser que ...
Spray pyrolysis deposited zinc oxide films for photo-electrocatalytic degradation of methyl orange: influence of the pH
(Lima (Perú), 2003-07)
Zinc oxide films were made by spray pyrolysis equipped with an optical system for in-situ thickness measurement; zinc acetate water solution was used as spraying solution. The pH of the spraying solution was modified in ...
Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications
(Lima (Perú), 2005-08)
Highly porous mixed WO3–SnO2 films have been prepared from an aqueous solution of SnCl4.5H2O and polytungsten gel with a molar ratio of Sn/W from 0 to 1. These solutions were sprayed on to alumina substrates at 220 ºC. The ...