Microwave-assisted synthesis of gadolinia-doped ceria powders for solid oxide fuel cells

Gondolini, Angela; Mercadelli, Elisa; Sanson, A.; Albonetti, Stefania; Doubova, L.; Boldrini, S.

doi:10.1016/j.ceramint.2011.01.010

Gadolinia doped ceria (GDC) is an attractive electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) for its high ionic conductivity at low temperature (500-700°C). A number of different methods are currently used to prepare nano-sized doped-ceria powder. Among the others, precipitation in solution remains the best method to obtain well-dispersed particles of controlled properties. In this work, nanocrystalline Ce1-xGdxO2-δ (GDC) particles were produced by polyol microwave assisted method in very mild conditions (170°C, 2h, 1 atm). The as-synthesized powder showed good sinterability and ionic conductivity comparable to the ones of the corresponding nanometric commercial GDC.

Titolo:	Microwave-assisted synthesis of gadolinia-doped ceria powders for solid oxide fuel cells
Autore/i:	GONDOLINI, ANGELA; MERCADELLI, ELISA; A. Sanson; ALBONETTI, STEFANIA; L. Doubova; S. Boldrini
Autore/i Unibo:	GONDOLINI, ANGELA MERCADELLI, ELISA A. Sanson ALBONETTI, STEFANIA L. Doubova S. Boldrini mostra contributor esterni nascondi contributor esterni
Anno:	2011
Rivista:	CERAMICS INTERNATIONAL
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/j.ceramint.2011.01.010
Abstract:	Gadolinia doped ceria (GDC) is an attractive electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) for its high ionic conductivity at low temperature (500-700°C). A number of different methods are currently used to prepare nano-sized doped-ceria powder. Among the others, precipitation in solution remains the best method to obtain well-dispersed particles of controlled properties. In this work, nanocrystalline Ce1-xGdxO2-δ (GDC) particles were produced by polyol microwave assisted method in very mild conditions (170°C, 2h, 1 atm). The as-synthesized powder showed good sinterability and ionic conductivity comparable to the ones of the corresponding nanometric commercial GDC.
Data prodotto definitivo in UGOV:	2013-06-12 09:26:02
Appare nelle tipologie:	1.01 Articolo in rivista

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http://hdl.handle.net/11585/102822

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