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首页> 外文期刊>International journal of hydrogen energy >Carbon-supported Pt-Co nanoparticles as anode catalyst for direct borohydride-hydrogen peroxide fuel cell: Electrocatalysis and fuel cell performance
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Carbon-supported Pt-Co nanoparticles as anode catalyst for direct borohydride-hydrogen peroxide fuel cell: Electrocatalysis and fuel cell performance

机译：碳载Pt-Co纳米颗粒作为直接硼氢化物-过氧化氢燃料电池的阳极催化剂：电催化和燃料电池性能

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摘要

Carbon-supported Pt-Co nanoparticle catalysts (Pt-Co/C) with a mean crystallite size of approximate 2 nm are prepared by a modified NaBH_4 reduction method in aqueous solution at room temperature and employed as anode catalyst for direct borohydride-hydrogen peroxide fuel cell (DBHFC). The physical and electrochemical properties are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), chronoamperometry (CA) and fuel cell test. The results show that Pt-Co/C catalyst presents more excellent performance as DBHFC anode catalyst compared with Pt/C catalyst, especially, Pt_(67)Co_(33)/C catalyst presents the highest catalytic activity for BH_4~- electrooxidation among all as-prepared catalysts. The single DBHFC using Pt_(67)Co_(33)/C as anode catalyst and Pt/C as cathode catalyst obtains the maximum power density as high as 79.7 mW cm~(-2) at 25 ℃.
机译：通过改进的NaBH_4还原法在室温下于水溶液中制备平均晶粒尺寸约为2 nm的碳载Pt-Co纳米颗粒催化剂（Pt-Co / C），并将其用作直接硼氢化物-过氧化氢燃料的阳极催化剂单元（DBHFC）。通过透射电子显微镜（TEM），X射线衍射（XRD），X射线光电子能谱（XPS），循环伏安法（CV），计时电流法（CA）和燃料电池测试研究了物理和电化学性质。结果表明，Pt-Co / C催化剂作为DBHFC阳极催化剂比Pt / C催化剂具有更好的性能，其中Pt_（67）Co_（33）/ C催化剂对BH_4〜-电氧化的催化活性最高。制备的催化剂。以Pt_（67）Co_（33）/ C作为阳极催化剂，Pt / C作为阴极催化剂的单一DBHFC在25℃时获得的最大功率密度高达79.7 mW cm〜（-2）。

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  • 来源
    《International journal of hydrogen energy》 |2012年第17期|p.12650-12658|共9页
  • 作者

    Lanhua Yi; Li Liu; Xue Liu; Xingyan Wang; Wei Yi; Peiying He; Xianyou Wang;

  • 作者单位

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

    Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry,Xiangtan University, Hunan 411105, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    direct borohydride-hydrogen; peroxide fuel cell; Pt-Co/C; anode electrocatalyst; borohydride oxidation; fuel cell performance;

    机译：直接硼氢化物氢;过氧化物燃料电池铂钴/碳;阳极电催化剂硼氢化物氧化燃料电池性能;

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