Electronic and morphological characterization of nanostructured Ni-doped (Ce,Gd)O2-δanodes for IT-SOFCS

We present a new modified sol-gel method to incorporate Ni into the precursors solution. This route produces a powder with a very homogeneous Ni distribution as observed by Scanning electron microscopy (SEM). Transmission electron microscopy. (TEM) and Energy Dispersive Spectroscopy (EDS) analysis i...

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Detalles Bibliográficos
Autores: Fernandez Zuvich, Afra, Soldati, Analía Leticia, Larrondo, Susana Adelina, Saleta, Martin Eduardo, Lamas, Diego Germán, Baque, Laura Cecilia, Caneiro, Alberto, Serquis, Adriana Cristina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/181021
Acceso en línea:http://hdl.handle.net/11336/181021
Access Level:acceso abierto
Palabra clave:SOLID OXIDE FUEL CELL
ANODE
DISPERSIVE XAS
TRANSMISION ELECTRON MICROSCOPY
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
Descripción
Sumario:We present a new modified sol-gel method to incorporate Ni into the precursors solution. This route produces a powder with a very homogeneous Ni distribution as observed by Scanning electron microscopy (SEM). Transmission electron microscopy. (TEM) and Energy Dispersive Spectroscopy (EDS) analysis indicate that this modification resulted in smaller particle sizes with narrower distribution than the commercial cermet. The study of the oxidation state and coordination of Ce and Ni in these cermets, simulating in-operando conditions, is performed using synchrotron Dispersive X-ray absorption spectroscopy (DXAS) technique. A correlation between the catalytic/redox properties with the samplés characteristics (microstructure, Ni distribution, etc.) is discussed.

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