Manganese oxide catalysts for secondary zinc air batteries: from electrocatalytic activity to bifunctional air electrode performance
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- 作者：Aroa R. Mainara ; b ; ; Luis C. Colmenaresa ; Olatz Leoneta ; Francisco Alcaidea ; Juan J. Iruinb ; Stephan Weinbergerc ; Viktor Hackerc ; Elena Iruina ; Idoia Urdanpilletaa ; J. Alberto Blazqueza ; ablazquez@cidetec.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bifunctional air electrode ; Secondary zinc-air battery ; Manganese oxide based catalysts (MnxOy) ; Oxygen evolution reaction (OER) ; Oxygen reduction reaction (ORR)
- 刊名：Electrochimica Acta
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：217
- 期：Complete
- 页码：80-91
- 全文大小：3419 K
文摘
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The novelty of this work originates from the combination of synthesizing manganese oxide based catalysts with different morphologies, physicochemical properties and electrocatalytic characteristics towards ORR and OER and the characterization thereof.
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The most promising MnxOy catalysts were selected and incorporated in bifunctional air electrodes as Gas Diffusion Electrode (GDE).
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The most promising α-MnO2 catalyst has been tested in a rechargeable Zn-Air battery cell showing more than 200 charge/discharge cycles, capacity retention above 95%, round-efficiency about 53% and ΔV ORR-OER ca. 1.0 V.