期刊
JOURNAL OF POWER SOURCES
卷 328, 期 -, 页码 65-74出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.07.075
关键词
Cermet anode; Ceria; SOFC; Metal-supported fuel cell; Impedance spectroscopy; Sulfur poisoning
资金
- Christian Doppler Laboratories
- Austrian Bundesministerium fur Wissenschaft, Forschung und Wirtschaft (BMWFW)
For optimization of ageing behavior, electrochemical performance, and sulfur tolerance of metal supported solid oxide fuel cells a new anode concept is introduced, which is based on a Ni/GDC cermet replacing the established Ni/YSZ anodes. In the present work optimized processing parameters compatible with MSC substrates are specified by doing sintering studies on pressed bulk specimen and on real porous anode structures. The electrochemical performance of the Ni/GDC anodes was characterized by means of symmetrical electrolyte supported model-type cells. In this study, three main objectives are pursued. Firstly, the effective technical realization of the Ni/GDC concept is demonstrated. Secondly, the electrochemical behavior of Ni/GDC porous anodes is characterized by impedance spectroscopy and compared with the current standard Ni/YSZ anode. Further, a qualitative comparison of the sulfur poisoning behavior of both anode types is presented. Thirdly, preliminary results of a successful implementation of the Ni/GDC cermet into a metal-supported single cell are presented. (C) 2016 Elsevier B.V. All rights reserved.
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