Fabrication and Fuel Cell Properties of Gd-Doped CeO2 Micro-Tube Ceramics Reactors Prepared by Gel Precursor

Yoshinobu Fujishiro; Kouich Hamamoto; Ramalinga V. Mangalaraja; Masanobu Awano

doi:10.4028/www.scientific.net/KEM.317-318.909

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Sintering and Electronic Conducting Properties of La_0.8Ca_0.2CrO₃ Perovskite-Type Complex Oxides Synthesized by Different Methods
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Magnetic and Electronic Properties of Transition Metal Doped β-SiC - A Diluted Magnetic Semiconductor
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Development of Ferrite Magnetic Materials with High Strength by a Low-Temperature Sintering Method
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Processing and Mechanical Properties of Microcellular Ceramics
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Preparation and Properties of a Novel Anode of Interpenetrating Phase Composite Structure
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Fabrication and Fuel Cell Properties of Gd-Doped CeO₂ Micro-Tube Ceramics Reactors Prepared by Gel Precursor
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Preparation of YSZ Electrolyte for SOFC by Electron Beam PVD
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Effect of Alumina Additions on Mechanical and Electrical Properties of 8mol% Yttria-Stabilized Zirconia Prepared by Spark Plasma Sintering
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Sealing Behavior of Visco-Elastic Composite Seals for SOFC Applications
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Fabrication and Fuel Cell Properties of Gd-Doped CeO₂ Micro-Tube Ceramics Reactors Prepared by Gel Precursor

Abstract:

Micro-tube type Gd-doped CeO2(CGO) reactor were prepared by hydrolysis of metal acetate gel at room temperature. The size of anode tube was ca. 0.8mm in diameter, and length was 20mm after sintering at 1400°C. DC conductivity of the prepared dense CGO cell consisting of 500nm grains was about 10 Ohm-cm at 600°C. Electrical power density of the micro-tube fuel cell, which was coated both CGO electrolyte and CGO/La0.6Sr0.4Co0.2Fe0.8O3 cathode on the surface of 40vol%NiO-CGO anode tube, was about 900mW/cm2 at 600°C under 30ml/min H2 gas flowing.