Ni/SDC Materials for Solid Oxide Fuel Cell Anode Applications by the Glycine-Nitrate Method

Cui Yang; Ji Gui Cheng; Hai Gen He; Jian Feng Gao

doi:10.4028/www.scientific.net/KEM.434-435.731

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Ni/SDC Materials for Solid Oxide Fuel Cell Anode...

Ni/SDC Materials for Solid Oxide Fuel Cell Anode Applications by the Glycine-Nitrate Method

Abstract:

NiO/Ce0.8Sm0.2O1.9 (NiO/SDC, 65wt.% NiO) composite powders were synthesized by a glycine-nitrate process (GNP) to fabricate Ni/SDC anode-supported solid oxide fuel cell (SOFC). The results show that the composite powders are composed of single cubic phases of NiO and SDC and have a particle size in nanometer range. NiO/SDC ceramics were prepared from the NiO/SDC powders and were converted into Ni/SDC cermets by reduction in H2, which were employed as anode materials for SOFC with SDC electrolyte. It is shown that Ni/SDC cermets from the NiO/SDC composite powders by the GNP have porous and homogeneous microstructures and show good electrical conductivity. A single SOFC based on Ni/SDC anode with about 50µm SDC electrolyte film and about 80µm La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode was constructed. Open circuit voltage (OCV) of the cell is about 0.8V and maximum power density is 361.42 and 394.78 mWcm-2 at 750 and 800°C, respectively.

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Periodical:

Key Engineering Materials (Volumes 434-435)

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731-734

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.731

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Online since:

March 2010

Authors:

Cui Yang, Ji Gui Cheng, Hai Gen He, Jian Feng Gao

Keywords:

Glycine-Nitrate Process, Ni/SDC Anode, Solid Oxide Fuel Cell (SOFC)

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