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Effects of Pretreatment Methods on Electrodes and SOFC Performance

Author

Listed:
  • Guo-Bin Jung

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Li-Hsing Fang

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Min-Jay Chiou

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Xuan-Vien Nguyen

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Ay Su

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

  • Win-Tai Lee

    (Taiwan Power Company, New Taipei City 23847, Taiwan)

  • Shu-Wei Chang

    (Taiwan Power Company, New Taipei City 23847, Taiwan)

  • I-Cheng Kao

    (Taiwan Power Company, New Taipei City 23847, Taiwan)

  • Jyun-Wei Yu

    (Department of Mechanical Engineering & Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan)

Abstract

Commercially available tapes (anode, electrolyte) and paste (cathode) were choosen to prepare anode-supported cells for solid oxide fuel cell applications. For both anode-supported cells or electrolyte-supported cells, the anode needs pretreatment to reduce NiO/YSZ to Ni/YSZ to increase its conductivity as well as its catalytic characteristics. In this study, the effects of different pretreatments (open-circuit, closed-circuit) on cathode and anodes as well as SOFC performance are investigated. To investigate the influence of closed-circuit pretreatment on the NiO/YSZ anode alone, a Pt cathode is utilized as reference for comparison with the LSM cathode. The characterization of the electrical resistance, AC impedance, and SOFC performance of the resulting electrodes and/or anode-supported cell were carried out. It’s found that the influence of open-circuit pretreatment on the LSM cathode is limited. However, the influence of closed-circuit pretreatment on both the LSM cathode and NiO/YSZ anode and the resulting SOFC performance is profound. The effect of closed-circuit pretreatment on the NiO/YSZ anode is attributed to its change of electronic/pore structure as well as catalytic characteristics. With closed-circuit pretreatment, the SOFC performance improved greatly from the change of LSM cathode (and Pt reference) compared to the Ni/YSZ anode.

Suggested Citation

  • Guo-Bin Jung & Li-Hsing Fang & Min-Jay Chiou & Xuan-Vien Nguyen & Ay Su & Win-Tai Lee & Shu-Wei Chang & I-Cheng Kao & Jyun-Wei Yu, 2014. "Effects of Pretreatment Methods on Electrodes and SOFC Performance," Energies, MDPI, vol. 7(6), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:6:p:3922-3933:d:37378
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    References listed on IDEAS

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    1. Yan, Wei-Mon & Wang, Xiao-Dong & Lee, Duu-Jong & Zhang, Xin-Xin & Guo, Yi-Fan & Su, Ay, 2011. "Experimental study of commercial size proton exchange membrane fuel cell performance," Applied Energy, Elsevier, vol. 88(1), pages 392-396, January.
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    Cited by:

    1. Nguyen, Xuan-Vien & Chang, Chang-Tsair & Jung, Guo-Bin & Chan, Shih-Hung & Yeh, Chia-Chen & Yu, Jyun-Wei & Lee, Chi-Yuan, 2018. "Improvement on the design and fabrication of planar SOFCs with anode–supported cells based on modified button cells," Renewable Energy, Elsevier, vol. 129(PB), pages 806-813.
    2. Xuan-Vien Nguyen & Chang-Tsair Chang & Guo-Bin Jung & Shih-Hung Chan & Wilson Chao-Wei Huang & Kai-Jung Hsiao & Win-Tai Lee & Shu-Wei Chang & I-Cheng Kao, 2016. "Effect of Sintering Temperature and Applied Load on Anode-Supported Electrodes for SOFC Application," Energies, MDPI, vol. 9(9), pages 1-13, August.

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