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首页> 外文期刊>International journal of hydrogen energy >Graphene modified fluorinated cation-exchange membranes for proton exchange membrane water electrolysis
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Graphene modified fluorinated cation-exchange membranes for proton exchange membrane water electrolysis

机译：石墨烯修饰的氟阳离子交换膜质子交换膜水电解

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摘要

One of major current technical challenges in proton exchange membrane water electrolysis (PEMWE) is the limited proton conductivity. Nowadays, graphene is considered one of the most promising candidates for improving the ionic transport properties, isotopic selectivity and proton conductivity throughout the unique two-dimensional structure. In this paper, we report on the development of graphene modified commercial membranes (Fumapem (R)) containing different graphene loadings for PEMWE applications. The membranes are characterized by Scanning Electron Microscopy (SEM) and thermo-gravimetrical and differential thermal analysis (TGA-DSC). Properties of composite membranes are investigated, including water uptake and ion-exchange capacity (IEC). In plane four-electrode arrangement is used to determine the proton conductivity of the composite membranes. It is found that composite membranes show an improved behaviour when compared to pristine commercial membranes and graphene loading can improve proton conductivity. In our conditions, the calculated activation energy (E-a) for proton conduction is found to be about 3.80 kJ mol(-1) for the composite Fumapem (R)/graphene membrane with 10 mg graphene loading, lower than of the pristine polymer proton exchange membrane. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：质子交换膜水电解（PEMWE）中当前的主要技术挑战之一是有限的质子传导率。如今，石墨烯被认为是在整个独特的二维结构中改善离子传输性能，同位素选择性和质子传导性的最有希望的候选者之一。在本文中，我们报道了在PEMWE应用中含有不同石墨烯负载量的石墨烯改性商业膜（Fumapem（R））的发展。该膜通过扫描电子显微镜（SEM）以及热重和差热分析（​​TGA-DSC）进行表征。研究了复合膜的性能，包括吸水率和离子交换容量（IEC）。平面四电极布置用于确定复合膜的质子传导率。发现与原始商业膜相比，复合膜表现出改善的行为，并且石墨烯负载可以改善质子传导性。在我们的条件下，对于具有10 mg石墨烯负载的复合Fumapem（R）/石墨烯膜，计算出的质子传导的活化能（Ea）约为3.80 kJ mol（-1），低于原始聚合物质子交换的膜。 （C）2019氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《International journal of hydrogen energy》 |2019年第21期|10190-10196|共7页
  • 作者

    Ion-Ebrasu Daniela; Pollet Bruno G.; Spinu-Zaulet Adnana; Soare Amalia; Carcadea Elena; Varlam Mihai; Caprarescu Simona;

  • 作者单位

    Natl Ctr Hydrogen & Fuel Cells, Natl Inst Cryogen & Isotop Technol ICSI Rm Valcea, Uzinei Str 4, Ramnicu Valcea 240050, Romania;

    Norwegian Univ Sci & Technol NTNU, Dept Energy & Proc Engn, Fac Engn, NO-7491 Trondheim, Norway;

    Natl Ctr Hydrogen & Fuel Cells, Natl Inst Cryogen & Isotop Technol ICSI Rm Valcea, Uzinei Str 4, Ramnicu Valcea 240050, Romania;

    Natl Ctr Hydrogen & Fuel Cells, Natl Inst Cryogen & Isotop Technol ICSI Rm Valcea, Uzinei Str 4, Ramnicu Valcea 240050, Romania;

    Norwegian Univ Sci & Technol NTNU, Dept Energy & Proc Engn, Fac Engn, NO-7491 Trondheim, Norway;

    Natl Ctr Hydrogen & Fuel Cells, Natl Inst Cryogen & Isotop Technol ICSI Rm Valcea, Uzinei Str 4, Ramnicu Valcea 240050, Romania;

    Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Dept Inorgan Chem Phys Chem & Electrochem, Bucharest, Romania;

  • 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

    Membrane; Graphene; Fumapem (R); Electrolysis; Proton conductivity;

    机译：膜;石墨烯;Fumapem（R）;电解;质子传导率;

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