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首页> 外文期刊>International journal of hydrogen energy >Ultra low loading of anode catalyst for direct methanol fuel cells with ZrO2/ pyrolysed (PANI-melamine) as catalyst support
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Ultra low loading of anode catalyst for direct methanol fuel cells with ZrO2/ pyrolysed (PANI-melamine) as catalyst support

机译：以ZrO2 /热解（PANI-三聚氰胺）为催化剂载体的直接甲醇燃料电池阳极催化剂的超低负荷

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摘要

A new electrochemical methodology is developed for coating ultra-low PtRu catalyst by depositing ZrO2/PANI/Melamine as a strong catalyst support for the electrode. Electrode position of PtRu alloy on the surface of pyrolysed ZrO2/PANI/ Melamine enhances the catalyst utilization (Pt: 78.4 mu g/cm(2), Ru: 0.57 mu g/cm(2)) in the methanol fuel cell. Pyrolysis of PANI and melamine on ZrO2 forms high porous graphene like structure which is identified by XRD/SEM/TEM. The surface composition and chemical oxidation states of Pt, Ru, Zr, C, N, and O are examined by XPS spectra. The DMFC performance has reached a peak power density of 68 mW/cm(2) in 5 M methanol concentration at 100 C with ultra-low catalyst loading in the anode. Comparing with commercial catalyst, 98% of PtRu usage has been reduced in this method which is first of kind ever reported. (c) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：通过沉积ZrO2 / PANI /三聚氰胺作为电极的强催化剂载体，开发了一种用于涂覆超低PtRu催化剂的新电化学方法。 PtRu合金在热解ZrO2 / PANI /三聚氰胺表面上的电极位置提高了甲醇燃料电池中催化剂的利用率（Pt：78.4μg / cm（2），Ru：0.57μg/ cm（2））。 PANI和三聚氰胺在ZrO2上的热解形成了高多孔性的石墨烯状结构，该结构可通过XRD / SEM / TEM鉴定。通过XPS光谱检查了Pt，Ru，Zr，C，N和O的表面成分和化学氧化态。 DMFC的性能在100 M的5 M甲醇浓度下达到了68 mW / cm（2）的峰值功率密度，阳极中的催化剂负载极低。与市售催化剂相比，该方法减少了98％的PtRu用量，这是有史以来首次报道。 （c）2016氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

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