NiO-SDC Powder for Solid Oxide Fuel Cell Anode Applications by Buffer Solution Method

Abstract:

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NiO-Samaria-Doped-Ceria (NiO-SDC) composite powders with nanometer particle size were synthesized by an improved co-precipitation method, called the buffer solution method. NiO/SDC ceramics were then prepared from the NiO-SDC composite powders and were converted into Ni/SDC cermets, which were tested as the anode materials for solid oxide fuel cell (SOFC) with SDC electrolytes. Microstructure observation showed that the NiO/SDC ceramics and Ni/SDC cermets fabricated from the NiO-SDC composite powders have more uniform and finer grain and pore size than those prepared from the mechanically mixed NiO-SDC powders, and the resulting Ni/SDC cermets also showed higher electrical conductivity than those of Ni/SDC cermets from the mechanically mixed NiO-SDC powders. Furthermore, SOFC based on the buffer solution Ni/SDC anodes exhibited higher open circuit voltage (OCV) and maximum power density.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

440-443

DOI:

10.4028/www.scientific.net/KEM.336-338.440

Citation:

J. G. Cheng et al., "NiO-SDC Powder for Solid Oxide Fuel Cell Anode Applications by Buffer Solution Method", Key Engineering Materials, Vols. 336-338, pp. 440-443, 2007

Online since:

April 2007

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Price:

$35.00

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