Please use this identifier to cite or link to this item: http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1283
MS-1-P-2892 Microstructure Study of W1-xMox O3 0.33H2O for Tunable Wavelength Absorption
ALEJANDRO ARZOLA RUBIO
WILBER ANTUNEZ FLORES
VIRGINIA HIDALINA COLLINS MARTINEZ
FRANCISCO PARAGUAY DELGADO
Acceso Abierto
Sin Derechos Reservados
Microstructure study
Hydrated tungsten oxide WO3 0.33H2O has been studied extensively due to its electronic and optoelectronic properties, it has has an enormous potential application ranging from condensed-matter physics to solid-state chemistry [1], such as photo-electrochemical energy conversion, gas sensors, photocatalysis, lithium-ion batteries, solar cells [2]. Tremendous effort has been dedicated to the synthesis, solid solution mechanism and property investigation of W1-xMox O3 0.33H2O over the past years. This material showed improved electrochromic, gas sensing, catalytic, lithium ion transport, and photocatalytic properties [3] when compared with their single oxide WO3 and MoO3. Recently, Zhou et al. were capable of modulate the band gaps of the W1-xMox O3 0.33H2O materials with different Mo/W ratio values [4]. We synthesized a series of W1-xMoxO3 0.33H2O nano/microstructures with controlled stoichiometry (x = 0, 0.25, 0.50, 0.75). With gradual increase of Mo content, we narrowed the band gap from 2.61 to 2.10 eV. This result is better than Zhou et al. but in our case, we use friendly to the environment chemical precursors such as ammonium heptamolybdate and ammonium metatungstate instead of metal powders.
2015
Memoria de congreso
Inglés
OTRAS
Versión revisada
submittedVersion - Versión revisada
Appears in Collections:Artículos en Congresos

Upload archives


File SizeFormat 
2892 Arzola IMC2014.pdf654.43 kBAdobe PDFView/Open