Cobalt-Free BaFe0.6Zr0.1Y0.3O3−δ Oxygen Electrode for Reversible Protonic Ceramic Electrochemical Cells
Cobalt-Free BaFe0.6Zr0.1Y0.3O3−δ Oxygen Electrode for Reversible Protonic Ceramic Electrochemical Cells
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DOI：
10.1007/s12209-023-00370-1
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发表时间：
2023-11
影响因子：
7.1
通讯作者：
Chenghao Yang;Jin Li;Ao Hu;J. Pu;Bo Chi
中科院分区：
文献类型：
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作者：
Chenghao Yang;Jin Li;Ao Hu;J. Pu;Bo Chi
可逆质子陶瓷电化学电池（R-PCEC）是理想的高效设备，具有环境友好性和模块化设计。本文研究了BaFe0.6Zr0.1Y0.3O3−δ（BFZY 3）作为高性能R-PCEC的无钴钙钛矿氧电极，其中Y离子掺杂可以增加氧空位浓度，显著提高催化性能。在650 °C下，Ni-BZCYYb/BZCYYb/BFZY 3电池在燃料电池（FC）和电解电池（EC）双模式下表现出良好的性能，在FC模式下极化电阻为0.13 Ω cm 2，峰值功率密度为546.59 mW/cm 2，在EC模式下1.3 V时电流密度为− 1.03 A/cm 2。FC和EC模式之间的交替操作长达8个循环，总共80小时，表明具有BFZY 3的电池在长期内是异常稳定和可逆的。结果表明，BFZY 3作为R-PCEC的空气电极材料具有相当大的潜力，允许有效的氧还原和水裂解。
Reversible protonic ceramic electrochemical cells (R-PCECs) are ideal, high-efficiency devices that are environmentally friendly and have a modular design. This paper studies BaFe0.6Zr0.1Y0.3O3−δ(BFZY3) as a cobalt-free perovskite oxygen electrode for high-performance R-PCECs where Y ions doping can increase the concentration of oxygen vacancies with a remarkable increase in catalytic performance. The cell with configuration of Ni-BZCYYb/BZCYYb/BFZY3 demonstrated promising performance in dual modes of fuel cells (FCs) and electrolysis cells (ECs) at 650 °C with low polarization resistance of 0.13 Ω cm2, peak power density of 546.59 mW/cm2in FC mode, and current density of − 1.03 A/cm2at 1.3 V in EC mode. The alternative operation between FC and EC modes for up to eight cycles with a total of 80 h suggests that the cell with BFZY3 is exceptionally stable and reversible over the long term. The results indicated that BFZY3 has considerable potential as an air electrode material for R-PCECs, permitting efficient oxygen reduction and water splitting.