Wet preparation and characterization of ScSZ thin film electrolyte on micro-cathode supports(<Special Article>The 62th CerSJ Awards for Academic Achievement in Ceramic Science and Technology)

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概要

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• Preparation of a dense Sc_2O_3-doped ZrO_2 (ScSZ) thin film electrolyte on a microtubular cathode support was accomplished using wet coating process and subsequent co-sintering. The microtubular (La,Sr) MnO_3 (LSM) cathode support had a 1.6mm diameter and approximately 30% open porosity. The cell, with 20μm thick ScSZ electrolyte, was electrochemically evaluated in a humidified (3% H_2O) hydrogen atmosphere. The microtubular cells exhibited a stable open circuit voltage above 1.05V in the temperature range from 550 to 750℃. Maximum power densities of 46.5, 163.2 and 452.8mW/cm^2 were generated at 550, 650 and 750℃, respectively. The results indicate that this preparation of a thin film ScSZ electrolyte effectively realized a stable, high performance LSM-supported micro SOFC.

• 社団法人日本セラミックス協会の論文
• 2009-02-01

著者

• Yamaguchi Toshiaki

  National Institute Of Advanced Industrial Science And Technology

関連論文

• Effect of microstructure on the conductivity of porous (La_Sr_)_MnO_3
• Wet preparation and characterization of ScSZ thin film electrolyte on micro-cathode supports(The 62th CerSJ Awards for Academic Achievement in Ceramic Science and Technology)
• Development of Novel Honeycomb SOFCs for Intermediate Temperature Operation
• Low Temperature Operated SOFCs Using Ceria Based Electrolyte

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