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首页> 外文期刊>RSC Advances >Novel quaternary ammonium functional addition-type norbornene copolymer as hydroxide-conductive and durable anion exchange membrane for direct methanol fuel cells
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Novel quaternary ammonium functional addition-type norbornene copolymer as hydroxide-conductive and durable anion exchange membrane for direct methanol fuel cells

机译：新型季铵官能加成型降冰片烯共聚物作为氢氧化物 - 导电和耐用的阴离子交换膜，用于直接甲醇燃料电池

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摘要

Novel quaternary ammonium functional addition-type norbornene copolymers (Q(Cn)P(BN/PhBN), n = 1, 6, 10, 12) with different alkyl side chain length comb-shaped structures or different contents of 2-(4-phenyl-butoxymethy-lene)-5-norbornene (PhBN) (22-77%) are synthesized via copolymerization of functionalized norbornenes, and their corresponding hydroxide-conductive anion exchange membranes (AEMs) with effective hydrophilic-hydrophobic separation are prepared and confirmed by TEM or SEM. The achieved AEMs show high ion exchange capacity (1.83 mmol g(-1)), as well as low methanol permeability (1.97-20.4 x 10(-7) cm(2) s(-1)), which are lower than that of Nafion (R). The ionic conductivity increases with the operation temperature increasing and is observed up to 4.14 x 10(-3) S cm(-1). The AEMs exhibit excellent dimensional stability with a swelling degree in plane between 0.9-3.3% and good chemical stability under 6 M NaOH solution even after a month. Membrane electrode assembly (MEA) is fabricated by using the alkalized Q(C12)P(BN/PhBN)-77 as the AEM and tested in an alkaline direct methanol fuel cell. The open circuit voltage (OVC) of 0.54 V and the maximum current density of 66 mW cm(-2) are achieved at 80 degrees C, respectively.
机译：新型季铵官能加成型降冰片烯共聚物（Q（CN）P（BN / PHBN），N = 1,6,10,12），具有不同的烷基侧链长度梳形结构或不同含量的2-（4-通过官能化的脱水冰珠烯酮共聚合成苯基 - 丁氧基甲基-Lene-Lene）-5-降冰片烯（PHBN）（22-77％），并制备具有有效亲水 - 疏水分离的相应氢氧化物阴离子交换膜（AEM）并通过TEM或SEM。达到的AEMS显示出高离子交换能力（1.83mmol G（-1）），以及低甲醇渗透率（1.97-20.4×10（-7）cm（2）厘米（-1）），其低于此nafion（r）。离子电导率随着操作温度的增加而增加，并且观察到高达4.14×10（-3）Cm（-1）。即使在一个月后，AEMS也表现出优异的尺寸稳定性，平面溶胀程度为0.9-3.3％，良好的化学稳定性。通过使用碱化Q（C12）P（BN / PHBN）-77作为AEM并在碱性直接甲醇燃料电池中测试膜电极组件（MEA）。 0.54V的开路电压（OVC）和66mW cm（-2）的最大电流密度分别在80℃下实现。

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  • 来源
    《RSC Advances》 |2015年第78期|共11页
  • 作者

    He Xiaohui; Liu Jingyin; Zhu Hongyu; Zheng Yan; Chen Defu;

  • 作者单位

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Civil Engn &

    Architecture Nanchang 330031 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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