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Ohhun Kwon, Sivaprakash Sengodan, Chaehyun Lim, Hu Young Jeong, Jeeyoung Shin, Young-Wan Ju, Guntae Kim
The Electrochemical Society, ELECTROCHEMICAL SOC INC
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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