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 (2011). Microwave-assisted synthesis of gadolinia-doped ceria powders for solid oxide fuel cells. CERAMICS INTERNATIONAL, 37, 1423-1426 [10.1016/j.ceramint.2011.01.010].
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
