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Single-Chamber SOFCs Using Dimethyl Ether and Ethanol

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2007Publisher:The Electrochemical SocietyJournal:Journal of The Electrochemical Society, volume 154, page B865 (issn: 0013-4651,

Authors: Masaya Yano; Mitsuru Sano; Atsuko Tomita; Masahiro Nagao; Kohsuke Okamoto; Takashi Hibino; Takanori Kawai;

doi: 10.1149/1.2747326

Single-Chamber SOFCs Using Dimethyl Ether and Ethanol

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Abstract

An anode-supported single-chamber solid oxide fuel cell (SC-SOFC), consisting of a Ce 0.9 Gd 0.1 O 19 electrolyte, a Ni-Ce 0.8 Sm 0.2 O 1 (SDC) cermet anode, and a Sm 0.5 Sr 0.5 CoO 3 cathode, was operated in a mixture feed of dimethyl ether (DME), ethanol or butane, and air at a furnace temperature of 300°C. This SC-SOFC showed comparatively poor performance for DME and ethanol fuels when compared to the performance for butane fuel, resulting from the relatively small difference in catalytic activity for DME and ethanol oxidation between the anode and the cathode. An effective improvement was achieved by attaching Ru/SDC/Ni and Cu/Zn/Al catalyst layers for DME and ethanol, respectively, on the anode surface. As a result, peak power densities of 64 and 117 mW cm -2 were obtained for DME and ethanol, respectively.

Related Organizations

Nagoya University
Japan
Nagoya University
Japan

Keywords

cerium compounds, strontium compounds, solid oxide fuel cells, catalysis, oxidation, gadolinium compounds, nickel, samarium compounds

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