Compositional Effect of Thin Electrode Functional Layers on the Performance of Solid Oxide Fuel Cells
Anode supported solid oxide fuel cells (SOFC) were fabricated by addition of various metal oxides such as Fe2O3, Co 3O4 and TiO2 to thin anode functional layers between the electrolyte (yttria-stabilized zirconia, YSZ) and electrode materials (anode support: YSZ-NiO). Effect of the additives on the power density and impedance spectra of SOFC was studied. It was found that addition of Co3O4 to anode functional layer was most effective towards improvement of power densities and reduction of the total ohmic resistance as well as the area specific resistance of the cells, while addition of TiO 2 to anode functional layer resulted in lower power densities. Possible mechanisms on the relationship between the additives in electrode functional layers and the cell performance were briefly discussed.
H. Park and F. Dogan, "Compositional Effect of Thin Electrode Functional Layers on the Performance of Solid Oxide Fuel Cells," Journal of Fuel Cell Science and Technology, vol. 8, no. 6, pp. 061002-1-061002-6, American Society of Mechanical Engineers(ASME), Dec 2011.
The definitive version is available at http://dx.doi.org/10.1115/1.4004470
Materials Science and Engineering
Keywords and Phrases
Anode functional layer; Anode supported solid oxide fuel cells; Anode-support; Area-specific resistances; Cell performance; Compositional effects; Electrode material; Functional layer; impedance spectroscopy; Impedance spectrum; Metal oxides; Ohmic resistance; Power densities; Thin electrode; TiO; Hydrogen; Ohmic contacts; Solid oxide fuel cells (SOFC); Titanium dioxide; Yttria stabilized zirconia; Anodes
International Standard Serial Number (ISSN)
Article - Journal
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