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Nickel-Based Anode with Water Storage Capability to Mitigate Carbon Deposition for Direct Ethanol Solid Oxide Fuel Cells

Authors

  • Dr. Wei Wang,

    1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009 (PR China)
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  • Dr. Chao Su,

    1. Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)
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  • Prof. Ran Ran,

    Corresponding author
    1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009 (PR China)
    • Ran Ran, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009 (PR China)===

      Shaomin Liu, Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)===

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  • Bote Zhao,

    1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009 (PR China)
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  • Prof. Zongping Shao,

    1. Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)
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  • Prof. Moses O. Tade,

    1. Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)
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  • Prof. Shaomin Liu

    Corresponding author
    1. Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)
    • Ran Ran, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009 (PR China)===

      Shaomin Liu, Department of Chemical Engineering, Curtin University, Perth, WA6845 (Australia)===

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Abstract

The potential to use ethanol as a fuel places solid oxide fuel cells (SOFCs) as a sustainable technology for clean energy delivery because of the renewable features of ethanol versus hydrogen. In this work, we developed a new class of anode catalyst exemplified by Ni+BaZr0.4Ce0.4Y0.2O3 (Ni+BZCY) with a water storage capability to overcome the persistent problem of carbon deposition. Ni+BZCY performed very well in catalytic efficiency, water storage capability and coking resistance tests. A stable and high power output was well maintained with a peak power density of 750 mW cm−2 at 750 °C. The SOFC with the new robust anode performed for seven days without any sign of performance decay, whereas SOFCs with conventional anodes failed in less than 2 h because of significant carbon deposition. Our findings indicate the potential applications of these water storage cermets as catalysts in hydrocarbon reforming and as anodes for SOFCs that operate directly on hydrocarbons.

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