English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17443
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Citado 0 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL

Combustion synthesis and EIS characterization of TiO2–SnO2 system

AutorChinarro Martín, Eva; Moreno Burriel, Berta; Jurado Egea, José Ramón
Palabras clavePowders-chemical preparation
Electrical conductivity
Fecha de publicación2007
CitaciónJournal of the European Ceramic Society 27 (2007) 3601–3604
ResumenTiO2 is an insulator, but using specific dopants, can modify sharply its electronic structure towards semiconducting behavior. This type of response is widely applied in many electrochemical and electrocatalytical devices, namely chlorine production, hydrocarbon oxidation, CO and CO2 hydrogenation and as electroactive substrata for biological cell growth. Combustion synthesis is a very simple, rapid and clean method for material preparation, which will be used in the preparation of the (1−x)TiO2–xSnO2, x = 0.05–0.3. Tin oxalate and titanium isopropoxide are used as precursors for the synthesis. The as-prepared powders are fine and homogeneous, the average particle size is in the range of 5–10 nm, powders and ceramic compact bodies are characterized by DRX, SEM–TEM–EDX, DTA–TG and EIS. The impedance spectroscopy of the sample 10 mol% of SnO2 indicates the presence of several phases which promote a matrix composite based in an electrical TiO2 insulator compatible with an electronic conducting phase tin rich. This could be attributed to the spinodal decomposition effect observed in TiO2–SnO2 system.
Versión del editordoi:10.1016/j.jeurceramsoc.2007.02.011
Aparece en las colecciones: (ICV) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.