Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/20737
DOI:
10.1149/2.0651609jes
Author(s):
Ohhun Kwon, Sivaprakash Sengodan, Chaehyun Lim, Hu Young Jeong, Jeeyoung Shin, Young-Wan Ju, Guntae Kim
Publisher(s):
The Electrochemical Society, ELECTROCHEMICAL SOC INC
Tags:
Materials Science, Energy, Physics and Astronomy, Chemistry, ceramic anode, fuel cells, sulfur tolerance, surface modification
article description
In this work, we report on a BaZrO(BZO) modified NiO-YSZ anode fabricated by co-sintering of NiO-YSZ and BaCOfor 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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