Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7728928 | Journal of Power Sources | 2016 | 8 Pages |
Abstract
Due to its high catalytic activity and convenient fabrication procedure that uses physical vapor deposition (PVD), nanofabricated platinum (Pt) is widely used for low temperature operating solid oxide fuel cells (LT-SOFC). However, the poor thermal stability of nanofabricated Pt accelerates cell performance degradation. To solve this problem, we apply a thermal barrier coating and use the dispersion hardening process for the nanofabrication of Pt by sputter device. Through morphological and electrochemical data, GDC modified nano-porous Pt electrodes shows improved performance and thermal stability at the operating temperature of 500 °C. While the peak power density of pure Pt sample is 6.16 mW cmâ2 with a performance degradation of 43% in an hour, the peak power density of the GDC modified Pt electrodes are in range of 7.42-7.91 mW cmâ2 with a 7-16% of performance degradation.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yoon Ho Lee, Gu Young Cho, Ikwhang Chang, Sanghoon Ji, Young Beom Kim, Suk Won Cha,