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.

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

GONDOLINI, ANGELA;MERCADELLI, ELISA;ALBONETTI, STEFANIA;
2011

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.
A. Gondolini; E. Mercadelli; A. Sanson; S. Albonetti; L. Doubova; S. Boldrini
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/102822
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