Synthesis and characterization of Gd 3+ and Sm 3+ ion doped ceria electrolytes through an in-situ sulphated combustion technique

R. V. Mangalaraja, S. Ananthakumar, Kasimayan Uma, Romel M. Jiménez, S. Uthayakumar, Marta López, Carlos P. Camurri

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

An in-situ sulphated-combustion synthesis is reported to obtain gadolinium [Ce 0.9Gd 0.1O 1.95] and samarium [Ce 0.9Sm 0.1O 1.95] doped ceria electrolytes for solid oxide fuel cells (SOFCs). Nitrate precursors of cerium, gadolinium and samarium reactants were mixed homogenously with a citric acid fuel with an in-situ addition of 10 and 20 mol% ammonium sulphate [(NH4)2SO4]. The mixture was combusted at 500°C and subsequently calcined at 700°C. The influence of the sulphate addition on the morphology of ceria particles has been analyzed. It is seen that the in-situ SO 4 2- ions highly favors the nucleation and growth of doped ceria electrolytes on a nanometer scale with an added advantage of improved crystallinity. TEM analysis indicates loosely agglomerated and nearly spherically shaped ceria nano particles with a maximum particle size of 20 nm.

Idioma originalInglés
Páginas (desde-hasta)15-22
Número de páginas8
PublicaciónJournal of Ceramic Processing Research
Volumen13
N.º1
EstadoPublicada - 2012
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Synthesis and characterization of Gd 3+ and Sm 3+ ion doped ceria electrolytes through an in-situ sulphated combustion technique'. En conjunto forman una huella única.

Citar esto