Listar por tema "Difracción de rayos X"
Mostrando ítems 21-23 de 23
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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 ... -
The influence of the ethanol/water molar ratio in the precursor solution on morphology and photocatalytic activity of pyrolytic ZnO films
(Lima (Perú)PE, 2005-08)Acceso abiertoZinc oxide films were fabricated by a home made spray pyrolysis system equipped with an optical set-up ensuring the in-situ control of the film growth. 0.1 M of zinc acetate diluted in a mixture of ethanol and water was ... -
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 ...