Low-temperature Processed Anode for Solid Oxide Fuel Cells

Abstract

A composite Ni-Y doped ZrO2 (YSZ) composite was prepared by depositing a 1-50 µm thick coating of YSZ particles from a colloidal suspension (initial YSZ particle size ~100 nm) onto a sapphire substrate followed by impregnation by Ni polymer precursors into the coating and annealing at 800°C. The electrical conductivity at 700°C of the composite Ni-YSZ was 0.1 S cm-1 in air and above 100 S cm-1 in reducing atmosphere. Redox cycle and life time testing showed stable performance and the conductivity at 800°C was as high as 300 S cm-1 after 800 h operation in reducing atmosphere. These results suggest that the Ni-YSZ composite can be a potential candidate for use as an anode in solid oxide fuel cells.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Electron Guns; Energy Efficiency; Field Emission Gun

International Standard Serial Number (ISSN)

1099-0062

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2005 the Electrochemical Society (ECS), All rights reserved.

Publication Date

01 Jul 2005

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