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首页> 外文期刊>RSC Advances >Hybrid polymer matrix composite containing polyaniline and Nafion as novel precursor of the enhanced catalyst for oxygen reduction reaction
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Hybrid polymer matrix composite containing polyaniline and Nafion as novel precursor of the enhanced catalyst for oxygen reduction reaction

机译：含有聚苯胺和Nafion的杂化聚合物基质复合材料作为氧还原反应增强催化剂的新型前体

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摘要

A hybrid polymer matrix composite has been synthesized by in situ polymerization of aniline monomers into Nafion framework and characterized by X-ray diffraction and thermo-gravimetric analysis, which serves as a novel nitrogen precursor for metal-nitrogen-doped carbon catalyst. The electrostatic interaction between the amino groups of polyaniline and sulfonate groups of Nafion is found to be helpful for the promotion of thermal stability of the nitrogen precursor, which increases the nitrogen content of the catalyst. High specific surface area can be achieved via the decomposition and volatilization of Nafion in the pyrolysis procedure. The half-wave potential of the Nfn/PA/Fe-2 catalyst is 0.879 V, larger than that of the commercial Pt/C catalyst (E-1/2 = 0.860 V). After 5000 cycles in alkaline media, the half-wave potential of Nfn/PA/Fe-2 decreases by 19 mV, which exhibits the excellent electrochemical durability and promising application in fields of metal-air batteries and alkaline fuel cells.
机译：通过将苯胺单体的原位聚合合成了杂化聚合物基质复合材料，该组合为Nafion框架，其特征在于X射线衍射和热重分析，其用作金属 - 氮掺杂碳催化剂的新型氮前体。发现聚苯胺和磺酸盐基团的氨基之间的静电相互作用有助于促进氮前体的热稳定性，这增加了催化剂的氮含量。通过在热解过程中的Nafion的分解和挥发可以通过分解和挥发来实现高比表面积。 NFN / PA / Fe-2催化剂的半波电位为0.879V，大于商业Pt / C催化剂（E-1/2 = 0.860V）的0.879V。在碱性介质中5000次循环后，NFN / PA / FE-2的半波电位减少了19 MV，其在金属 - 空气电池和碱性燃料电池领域中表现出优异的电化学耐久性和有希望的应用。

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  • 来源
    《RSC Advances》 |2016年第65期|共9页
  • 作者

    Fu Xudong; Wang Suli; Li Huanqiao; Xia Zhangxun; Jiang Luhua; Sun Gongquan;

  • 作者单位

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

    Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy Div Fuel Cell &

    Battery Zhongshan Rd 457 Dalian 116023 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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