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首页> 外文期刊>International Journal of Heat and Mass Transfer >Improving the wetting properties of separator to enhance the performance of microbial fuel cells
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Improving the wetting properties of separator to enhance the performance of microbial fuel cells

机译：改善隔板的润湿性能，以提高微生物燃料电池的性能

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摘要

This work is concerned with the mass transfer in the separators and tries to improve proton transfer efficiency while decreasing the oxygen permeation by improving the wetting properties of separators. In this work, the effect of the wetting properties of separators on the performance of microbial fuel cells (MFCs) is investigated through electrochemical performance tests. The expanded polytetrafluroethylene (ePTFE) membrane is modified into hydrophilic surface by adhesive poly solution, which is an easy method prepared by ferric hydroxide (Fe(OH)_3) colloidal solution and acrylic acid (C_3H_4O_2). Untreated and treated ePTFE membranes are checked and loaded into a single-chamber air-cathode microbial fuel cells for the electrochemical performance tests. It is demonstrated that the inserted hydrophilic ePTFE membrane as the separator between anodic solution and catalyst layer substantially enhances the overall electrical conduction, power generation and organic substrate removal in MFCs. The theoretical and experimental results show that improving the wetting properties of the separator is useful for the performance improvement of MFCs. Improving the wetting properties of separators to achieve the purpose of highly proton transfer efficiency and lowly oxygen permeation, maybe offer a new way for solving the paradox between the proton transfer and the oxygen permeation in separator selection and practical application of MFCs.
机译：这项工作涉及隔板中的传质，并试图通过改善隔板的润湿性来提高质子传递效率，同时降低氧的渗透。在这项工作中，通过电化学性能测试研究了隔板的润湿性能对微生物燃料电池（MFCs）性能的影响。膨胀的聚四氟乙烯（ePTFE）膜通过胶粘剂溶液被改性为亲水性表面，这是一种由氢氧化铁（Fe（OH）_3）胶体溶液和丙烯酸（C_3H_4O_2）制备的简便方法。检查未经处理和经过处理的ePTFE膜，并将其装入单室空气阴极微生物燃料电池中，以进行电化学性能测试。事实证明，插入的亲水性ePTFE膜作为阳极溶液和催化剂层之间的分隔物，可以大大增强MFC中的整体导电性，发电能力和去除有机底物的能力。理论和实验结果表明，改善隔板的润湿性能有助于提高MFC的性能。改善隔板的润湿性能，以达到高质子传递效率和低氧渗透的目的，也许为解决质子传递与氧渗透之间的矛盾提供了一种新的方法，以解决隔膜的选择和MFCs的实际应用。

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  • 作者

    Sen Yao; Ya-Ling He; Bing-Ye Song; Huan Xi; Xiao-Yue Li;

  • 作者单位

    Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China;

    Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China;

    Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China;

    Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China;

    Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microbial fuel cell; Expanded polytetrafluroethylene membrane; Capillary phenomenon; Hydrophilic modified;

    机译：微生物燃料电池;膨胀的聚四氟乙烯膜;毛细管现象;亲水改性;

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