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In Situ Surface Modification of Ni-YSZ with BaZrO3 for Enhancing the Sulfur Tolerance of Ni-YSZ Anode

Authors
Kwon, OhhunSengodan, SivaprakashLim, ChaehyunJeong, Hu YoungShin, JeeyoungJu, Young-WanKim, Guntae
Issue Date
Jul-2016
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.163, no.9, pp.F1055 - F1058
Journal Title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume
163
Number
9
Start Page
F1055
End Page
F1058
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/3342
DOI
10.1149/2.0651609jes
ISSN
0013-4651
Abstract
In this work, we report on a BaZrO3 (BZO) modified NiO-YSZ anode fabricated by co-sintering of NiO-YSZ and BaCO3 for SOFCs. The BZO modified Ni-YSZ anode shows stable electrochemical performance in H2 fuel containing a high level of 100 ppm sulfur for more than 100 hours. On the other hand, an unmodified Ni-YSZ anode degrades significantly in 100 ppm sulfur containing H2 fuel. The obtained results demonstrate that the BZO in the Ni-YSZ is an excellent catalyst for enhancing the sulfur tolerance of the conventional Ni-YSZ anode. Moreover, the surface modification strategy is simple and cost-effective, and thereby can promote commercialization of Ni-YSZ anode supported cells.
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