Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell

Yuki Yamada; Ryosuke Okubo; Masahiro Kinoshita; Masashi Yoshinaga; Eiki Niwa; Takuya Hashimoto; Keita Tomomichi; Kazuya Sasaki

doi:10.1149/06801.1391ecst

Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell

Yuki Yamada, Ryosuke Okubo, Masahiro Kinoshita, Masashi Yoshinaga, Eiki Niwa, Takuya Hashimoto, Keita Tomomichi, Kazuya Sasaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The possibility of performance recovery of the sulfurated Ni-yttria stabilized zirconia anode by shifting the anode potential to the stable region, in which nickel exists as metal, is investigated. The effect of controlling the potential of the anode to the stable region to suppress the generation of nickel sulfide is also revealed. The surface of Ni particle reacts with sulfur to form Ni₃S₂ in a low temperature region; however, the nickel is reduced to metallic by shifting the electrode potential to -1.9 V vs reference electrode exposed to O₂. When the potential of the Ni-based anode is maintained at the value of ≤ -1.9 V vs the reference electrode potential, the sulfidation of nickel is inhibited.

Original language	English
Title of host publication	Solid Oxide Fuel Cells 14, SOFC 2015
Editors	K. Eguchi, S. C. Singhal
Publisher	Electrochemical Society Inc.
Pages	1391-1401
Number of pages	11
Edition	1
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06801.1391ecst
Publication status	Published - 2015
Externally published	Yes
Event	14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom Duration: Jul 26 2015 → Jul 31 2015

Publication series

Name	ECS Transactions
Number	1
Volume	68
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country/Territory	United Kingdom
City	Glasgow
Period	7/26/15 → 7/31/15

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1149/06801.1391ecst

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Yamada, Y., Okubo, R., Kinoshita, M., Yoshinaga, M., Niwa, E., Hashimoto, T., Tomomichi, K., & Sasaki, K. (2015). Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 14, SOFC 2015 (1 ed., pp. 1391-1401). (ECS Transactions; Vol. 68, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/06801.1391ecst

Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell. / Yamada, Yuki; Okubo, Ryosuke; Kinoshita, Masahiro et al.
Solid Oxide Fuel Cells 14, SOFC 2015. ed. / K. Eguchi; S. C. Singhal. 1. ed. Electrochemical Society Inc., 2015. p. 1391-1401 (ECS Transactions; Vol. 68, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yamada, Y, Okubo, R, Kinoshita, M, Yoshinaga, M, Niwa, E, Hashimoto, T, Tomomichi, K & Sasaki, K 2015, Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell. in K Eguchi & SC Singhal (eds), Solid Oxide Fuel Cells 14, SOFC 2015. 1 edn, ECS Transactions, no. 1, vol. 68, Electrochemical Society Inc., pp. 1391-1401, 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage, Glasgow, United Kingdom, 7/26/15. https://doi.org/10.1149/06801.1391ecst

Yamada Y, Okubo R, Kinoshita M, Yoshinaga M, Niwa E, Hashimoto T et al. Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell. In Eguchi K, Singhal SC, editors, Solid Oxide Fuel Cells 14, SOFC 2015. 1 ed. Electrochemical Society Inc. 2015. p. 1391-1401. (ECS Transactions; 1). doi: 10.1149/06801.1391ecst

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abstract = "The possibility of performance recovery of the sulfurated Ni-yttria stabilized zirconia anode by shifting the anode potential to the stable region, in which nickel exists as metal, is investigated. The effect of controlling the potential of the anode to the stable region to suppress the generation of nickel sulfide is also revealed. The surface of Ni particle reacts with sulfur to form Ni3S2 in a low temperature region; however, the nickel is reduced to metallic by shifting the electrode potential to -1.9 V vs reference electrode exposed to O2. When the potential of the Ni-based anode is maintained at the value of ≤ -1.9 V vs the reference electrode potential, the sulfidation of nickel is inhibited.",

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AB - The possibility of performance recovery of the sulfurated Ni-yttria stabilized zirconia anode by shifting the anode potential to the stable region, in which nickel exists as metal, is investigated. The effect of controlling the potential of the anode to the stable region to suppress the generation of nickel sulfide is also revealed. The surface of Ni particle reacts with sulfur to form Ni3S2 in a low temperature region; however, the nickel is reduced to metallic by shifting the electrode potential to -1.9 V vs reference electrode exposed to O2. When the potential of the Ni-based anode is maintained at the value of ≤ -1.9 V vs the reference electrode potential, the sulfidation of nickel is inhibited.

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Performance recovery of sulfur poisoning anode and prevention of sulfur poisoning by shifting anode potential for solid oxide fuel cell

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