YSZ Thin Films Prepared by a Novel Powder Coating Process on Porous NiO-YSZ Cermet

Abstract:

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Dense YSZ thin film with a thickness from 2 to 15 µm on porous Ni-YSZ anode support was fabricated by a novel powder coating process. The performance of the cell with a composite of Sm0.8Sr0.2CoO3- YSZ (40 wt.%) as cathode was examined over a temperature range from 550 to 800 °C, using H2 -3% H2O as fuel and air as oxidant. The maximum power density of the cells was over 300 mW/cm2 at 800 °C. The open circuit voltage of the cells reached 1.1 V at 750 °C, illustrating the full dense of the YSZ electrolyte. The anode-electrolyte interfacial resistances were negligible in comparison with that of cathode-electrolyte, indicating the good coherency of the YSZ electrolyte to the anode support. These results demonstrate the reliability of this novel process for thin electrolyte SOFCs.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

435-438

DOI:

10.4028/www.scientific.net/KEM.280-283.435

Citation:

W. T. Bao et al., "YSZ Thin Films Prepared by a Novel Powder Coating Process on Porous NiO-YSZ Cermet", Key Engineering Materials, Vols. 280-283, pp. 435-438, 2005

Online since:

February 2007

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Price:

$35.00

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