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Morphology Control of the Electrode for Solid Oxide Fuel Cells by Using Nanoparticles

Authors:	Fukui Takehisa Ohara Satoshi Naito Makio Nogi Kiyoshi

Institution:	(1) Research and Development Laboratory, Japan Fine Ceramics Center (JFCC), 2-4-1 Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan;(2) Joining and Welding Research Institute (JWRI), Osaka University, 11-1 Mihogaoka, Ibaraki, 567-0047, Japan

Abstract:	LSM(La(Sr)MnO₃)/YSZ(Y₂O₃ stabilized ZrO₂) composite cathode for Solid Oxide Fuel Cells (SOFCs) was fabricated by using the composite particle consisting of well-dispersed nano-size grains of LSM and YSZ. The composite cathode had a porous structure as well as uniformly dispersed fine LSM and YSZ grains. Such unique morphology of the composite cathode led high electrochemical activity at 800°C. It suggests that the intermediate temperature (less than 800°C) operation of SOFCs will be achieved by using composite particles.

Keywords:	Fuel cells cathode La(Sr)MnO₃ electrochemical activity nanoparticles composite particle
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