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Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications

Solís, José; Rodríguez, Juan; Estrada, Walter (Lima (Perú)PE, 2005-08)
Acceso abierto

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 ...