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首页> 外文期刊>Journal of power sources >Highly durable polybenzimidazole composite membranes with phosphonated graphene oxide for high temperature polymer electrolyte membrane fuel cells
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Highly durable polybenzimidazole composite membranes with phosphonated graphene oxide for high temperature polymer electrolyte membrane fuel cells

机译：高度耐久的带有膦化氧化石墨烯的聚苯并咪唑复合膜用于高温聚合物电解质膜燃料电池

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摘要

Polymer electrolyte membranes with highly stable phosphoric acid loading continue to pose a challenge for the development of durable high temperature polymer electrolyte membrane fuel cells. A new class of highly conductive and durable composite membranes is prepared for high temperature fuel cell application under anhydrous conditions. 2,6-Pyridine functionalized polybenzimidazole (Py-PBI) is used as substrate for hosting phosphoric acid moiety. A highly dispersible phosphonated graphene oxide (PGO) introduced to Py-PBI substrate at different levels prior to acid doping and conductivity, durability and fuel cell performance of developed membranes are evaluated. A proton conductivity as high as 76.4 x 10(-3)S cm(-1) is achieved at 140 degrees C under anhydrous condition. A strong correlation is found between the content of PGO and the stability of the acid content despite similarity in doping level. In general, the conductivity is obviously more stable in the PGO containing membranes. A Pt-catalyzed fuel cell using the developed composite membranes show a peak power density 359 mW cm(-2) at 120 degrees C under anhydrous condition which is above 75% improvements compared to the membranes without the phosphonated filler. This work demonstrates that the adopted membrane preparation strategy and their observed properties pave the way for highly conductive and durable proton conducting membranes.
机译：具有高度稳定的磷酸负载的聚合物电解质膜继续对开发耐用的高温聚合物电解质膜燃料电池提出挑战。为无水条件下的高温燃料电池应用准备了新型的高导电性和耐用性复合膜。 2,6-吡啶官能化的聚苯并咪唑（Py-PBI）被用作承载磷酸部分的底物。在酸掺杂之前，以不同的水平将高分散性膦酸氧化石墨烯（PGO）引入Py-PBI基材中，并评估了已开发膜的导电性，耐久性和燃料电池性能。在无水条件下于140摄氏度下可获得高达76.4 x 10（-3）S cm（-1）的质子传导率。尽管掺杂水平相似，但在PGO的含量和酸含量的稳定性之间发现了很强的相关性。通常，在含PGO的膜中，电导率显然更稳定。使用已开发的复合膜的Pt催化燃料电池在无水条件下于120℃时显示的峰值功率密度> 359 mW cm（-2），与不使用磷化填料的膜相比，提高了75％以上。这项工作表明，采用的膜制备策略及其观察到的性能为高导电性和耐用性的质子导电膜铺平了道路。

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  • 来源
    《Journal of power sources》 |2019年第1期|238-245|共8页
  • 作者

    Abouzari-Lotf Ebrahim; Zakeri Masoumeh; Nasef Mohamed Mahmoud; Miyake Mikio; Mozarmnia Pooria; Bazilah Nur Anati; Emelin Noor Fatina; Ahmad Arshad;

  • 作者单位

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Dept Chem Engn, Johor Baharu 81310, Malaysia;

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Petronas, Dept Chem Engn, Seri Iskandar 32610, Perak, Malaysia;

    Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia|Univ Teknol Malaysia, Dept Chem Engn, Johor Baharu 81310, Malaysia;

  • 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

    Phosphonated graphene oxide; Pyridine functionalized PBI; High-temperature PEM; Durability;

    机译：氧化石墨烯;吡啶官能化PBI;高温PEM;耐久性;

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