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Issue 1, 2017
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Zr and Y co-doped perovskite as a stable, high performance cathode for solid oxide fuel cells operating below 500 °C

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Abstract

Zr and Y co-doped perovskite BaCo0.4Fe0.4Zr0.1Y0.1O3−δ (BCFZY0.1) was recently developed as a promising new cathode for protonic ceramic fuel cells (PCFCs). Here, it is applied for the first time as a cathode for low-temperature solid oxide fuel cells (LT-SOFCs). It exhibits large lattice parameters, high oxygen reduction reaction (ORR) activity, exceptional low-temperature performance, long-term stability, and excellent chemical compatability with ceria-based SOFC electrolytes. When BCFZY0.1 is used as the cathode in Ce0.8Gd0.2O2−δ (GDC20)-based SOFCs, it enables a peak power density of 0.97 W cm−2 at 500 °C with 2500 hours stable performance and complete recoverability without any degradation after more than 80 fast thermal ramping cycles. Even at 350 °C, peak power density reaches 0.13 W cm−2. It also shows good H2O and CO2 tolerance.

Graphical abstract: Zr and Y co-doped perovskite as a stable, high performance cathode for solid oxide fuel cells operating below 500 °C

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Publication details

The article was received on 04 Jul 2016, accepted on 07 Oct 2016 and first published on 07 Oct 2016


Article type: Paper
DOI: 10.1039/C6EE01915C
Citation: Energy Environ. Sci., 2017,10, 176-182
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    Zr and Y co-doped perovskite as a stable, high performance cathode for solid oxide fuel cells operating below 500 °C

    C. Duan, D. Hook, Y. Chen, J. Tong and R. O'Hayre, Energy Environ. Sci., 2017, 10, 176
    DOI: 10.1039/C6EE01915C

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