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Organic Proton-Conducting Molecules as Solid-State Separator Materials for Fuel Cell Applications

机译：有机质子传导分子作为燃料电池应用的固态分离材料

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摘要

Organic proton-conducting molecules are presented as alternative materials to state-of-the-art polymers used as electrolytes in proton-exchanging membrane (PEM) fuel cells. Instead of influencing proton conductivity via the mobility offered by polymeric materials, the goal is to create organic molecules that control the proton-transport mechanism through supramo-lecular order. Therefore, a series of phosphonic acid-containing molecules possessing a carbon-rich hydrophobic core and a hydrophilic periphery was synthesized and characterized. Proton conductivity measurements as well as water uptake and crystallinity studies (powder and single-crystal X-ray analysis) were performed under various conditions. These experiments reveal that proton mobility is closely connected to crystallinity and strongly dependent on the supramolecuiar ordering of the compound. This study provides insights into the proton-conducting properties of this novel class of materials and the mechanisms responsible for proton transport.
机译：有机质子传导分子是作为质子交换膜（PEM）燃料电池中电解质的最先进聚合物的替代材料。目标不是通过聚合物材料提供的迁移率来影响质子传导性，而是要创建通过超分子顺序控制质子传输机制的有机分子。因此，合成并表征了一系列具有富碳疏水核和亲水性外围的含膦酸的分子。在各种条件下进行了质子电导率测量以及吸水率和结晶度研究（粉末和单晶X射线分析）。这些实验表明，质子迁移率与结晶度密切相关，并且强烈依赖于该化合物的超分子顺序。这项研究提供了对这种新型材料的质子传导性质以及负责质子传输的机理的见解。

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  • 来源
    《Advanced Functional Materials》 |2011年第12期|p.2216-2224|共9页
  • 作者

    Lucía Jiménez-Carcía; Anke Kaltbeitzel; Volker Enkelmann; Jochen S. Gutmann; Markus Klapper; Klaus Müllen;

  • 作者单位

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

    Max Planck Institute for Polymer Research Ackermannweg 10, 55128 Mainz, Germany;

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