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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Study of LaCoO_3 as a cathode catalyst for a membraneless direct borohydride fuel cell
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Study of LaCoO_3 as a cathode catalyst for a membraneless direct borohydride fuel cell

机译：LaCoO_3作为无膜直接硼氢化物燃料电池阴极催化剂的研究

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摘要

In this paper, the perovskite-type oxide LaCoO_3 was studied as a cathode catalyst for use in a direct borohydride fuel cell (DBFC). The experimental results demonstrated that the LaCoO_3-catalysed cathode not only shows good electrocatalytic activity for oxygen reduction in alkaline solutions, but also shows good resistance to poisoning from BH_4~- ions originating from the fuel during discharge performance. Based on this new type of catalyst, a membraneless fuel cell was designed with a hydrogen storage alloy used as the anode catalyst. The maximal current density of 220 mA cm"2 and power density of 65 mWcm~(-2) were obtained at ambient conditions.
机译：本文研究了钙钛矿型氧化物LaCoO_3作为直接硼氢化物燃料电池（DBFC）中使用的阴极催化剂。实验结果表明，LaCoO_3催化的阴极不仅对碱性溶液中的氧还原具有良好的电催化活性，而且对放电过程中源自燃料的BH_4〜-离子中毒表现出良好的抵抗力。基于这种新型催化剂，设计了一种以氢存储合金为阳极催化剂的无膜燃料电池。在环境条件下获得的最大电流密度为220 mA cm•2，功率密度为65 mWcm〜（-2）。

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