Listar por tema "Proceso de sol-gel"
Mostrando ítems 1-8 de 8
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Efectos del tiempo de peptización en la síntesis sol-gel de nanohilos de TiO2, su caracterización óptica, electrónica y microestructural
(Lima (Perú)PE, 2007-08)Acceso abiertoSe han sintetizado nanoparticulas de TiO2 en forma de hilos a partir de Isopropoxido de titanio por sol-gel usando HClO4 como catalizador y temperatura de hidrólisis de 75 °C. Con el tiempo los nanohilos obtenidos tuvieron ... -
Highly porous thin films obtained by spray-gel technique
(Lima (Perú)PE, 2004-08)Acceso abiertoCombining the spray pyrolysis and the sol-gel techniques (spray-gel) gives the possibility to produce very rough and highly diffuse films, under appropriate conditions. This technique is suitable for producing multifunctional ... -
Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications
(Lima (Perú)PE, 2005-08)Acceso abiertoHighly 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 ... -
Síntesis y caracterización de nanopartículas de peróxido de cinc (ZnO2) obtenidas mediante la técnica de sol-gel
(Instituto Peruano de Energía NuclearPE, 2011-10)Acceso abiertoNanopartículas de peróxido de zinc (ZnO2) fueron sintetizadas mediante la técnica de sol-gel, empleando acetato de zinc di-hidratado (Zn(CH3COO)2.2H2O) y peróxido de hidrógeno (H2O2) al 30 % en un medio acuoso. Durante la ... -
Solar photocatalytic degradation of phenol using pyrolitic TiO2 films deposited inside a tubing
(Lima (Perú)PE, 2005-08)Acceso abiertoSolar photocatalytic degradation of phenol was obtained using TiO2 films deposited inside glass tubing. TiO2 thin films inside tubing were obtained by spray-gel technique using a titanium isopropoxide solution conveniently ... -
Surface morphology engineering of metal-oxide films by chemical spray pyrolysis
(Lima (Perú)PE, 2007-08)Acceso abiertoChemical Spray Pyrolysis Technique and a combination of sol-gel and spray pyrolysis techniques have been used in order to monitor the morphology of metal-oxide-based thin films to be used as functional materials. We can ... -
Synthesis and characterization of rough electrochromic phosphotungstic acid films obtained by spray-gel process
(Lima (Perú)PE, 2003-07)Acceso abiertoRough electrochromic phosphotungstic acid (PWA) films were fabricated by spraying a gel of phosphotungstate anions with a molar ratio of P:W = 1:12 onto glass substrates precoated with transparent and electrically conducting ... -
Titanium dioxide nanoparticles obtained by sol gel method: Effect of the catalyst acids
(Instituto Peruano de Energía NuclearPE, 2010-11)Acceso abiertoTitanium dioxide nanoparticles have been obtained by sol-gel process. Titanium isopropoxide was hydrolized in acidic medium at pH values between 0.5 and 1. The hydrolysis was catalyzed with HCl, HNO3 or HClO4, and studied ...
