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首页> 外文期刊>RSC Advances >Catalytic performance of a pyrolyzed graphene supported Fe-N-C composite and its application for acid direct methanol fuel cells
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Catalytic performance of a pyrolyzed graphene supported Fe-N-C composite and its application for acid direct methanol fuel cells

机译：热解石墨烯的催化性能负载Fe-N-C复合材料及其对酸直甲醇燃料电池的应用

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摘要

In this work, a graphene supported Fe-N-C composite catalyst, synthesized by pyrolysis of graphene oxide (GO), graphitic carbon nitride (g-C3N4), ferric chloride (FeCl3) and carbon black (Vulcan XC-72), was evaluated for oxygen reduction reaction (ORR) in acid media. The introduction of carbon black was to separate the graphene sheets to enhance the specific surface area and thus improve the catalytic activity of the catalyst. The experimental results showed that the composite catalyst could yield an average electron transfer number of 3.85 and its onset and half-wave potentials for acidic ORR were only 56 and 69 mV smaller than those of Pt/C (40 wt% Pt) catalyst, respectively. The as-prepared catalyst was applied in an acid direct methanol fuel cell as the cathode catalyst and a peak power density of 11.72 mW cm(-2) at 30 degrees C was demonstrated when feeding the anode and cathode with a 1 M methanol solution and air, respectively, suggesting its promising application.
机译：在这项工作中，通过石墨烯（GO），石墨氮化碳氮化物（G-C3N4），氯化铁（FECL3）和炭黑（Vulcan XC-72）的热解合成的石墨烯支持的Fe-NC复合催化剂。 酸介质中的氧还原反应（ORR）。 炭黑的引入是将石墨烯片分离以增强比表面积，从而改善催化剂的催化活性。 实验结果表明，复合催化剂可以产生3.85的平均电子转移次数，其发作和酸性ORR的起始和半波电位分别小于Pt / C（40wt％Pt）催化剂的56和69mV 。 当加入阳极和阴极用1M甲醇溶液进料时，在30摄氏度下施加在酸直接甲醇燃料电池中施加在酸直接甲醇燃料电池中，并在30℃下进行11.72mWcm（-2）的峰值功率密度。 空气分别暗示其有前途的应用。

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  • 来源
    《RSC Advances》 |2016年第93期|共9页
  • 作者

    Xi Jingjing; Wang Fang; Mei Riguo; Gong Zhijie; Fan Xianping; Yang Hui; An Liang; Wu Qixing; Luo Zhongkuan;

  • 作者单位

    Zhejiang Univ Dept Mat Sci &

    Engn Zhejiang Calif Int NanoSyst Inst 38 Zhe Da Rd Hangzhou 310000 Zhejiang Peoples R China;

    Shenzhen Univ Coll Chem &

    Environm Engn Shenzhen Key Lab New Lithium Ion Batteries &

    Meso 3688 Nanhai Ave Shenzhen 518060 Peoples R China;

    Shenzhen Univ Coll Chem &

    Environm Engn Shenzhen Key Lab New Lithium Ion Batteries &

    Meso 3688 Nanhai Ave Shenzhen 518060 Peoples R China;

    Zhejiang Univ Dept Mat Sci &

    Engn Zhejiang Calif Int NanoSyst Inst 38 Zhe Da Rd Hangzhou 310000 Zhejiang Peoples R China;

    Zhejiang Univ Dept Mat Sci &

    Engn Zhejiang Calif Int NanoSyst Inst 38 Zhe Da Rd Hangzhou 310000 Zhejiang Peoples R China;

    Zhejiang Univ Dept Mat Sci &

    Engn Zhejiang Calif Int NanoSyst Inst 38 Zhe Da Rd Hangzhou 310000 Zhejiang Peoples R China;

    Hong Kong Polytech Univ Dept Mech Engn Kowloon Hong Kong Peoples R China;

    Shenzhen Univ Coll Chem &

    Environm Engn Shenzhen Key Lab New Lithium Ion Batteries &

    Meso 3688 Nanhai Ave Shenzhen 518060 Peoples R China;

    Zhejiang Univ Dept Mat Sci &

    Engn Zhejiang Calif Int NanoSyst Inst 38 Zhe Da Rd Hangzhou 310000 Zhejiang Peoples R China;

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  • 正文语种 eng
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