An analytical model for the conductivity of polymeric sulfonated membranes

被引:22
|
作者
Pisani, L. [1 ]
Valentini, M. [1 ]
Hofmann, D. H. [1 ]
Kuleshova, L. N. [1 ]
D'Aguanno, B. [1 ]
机构
[1] CRS4, Parco Sci & Technol, I-09010 Pula, CA, Italy
关键词
proton conductivity; PEMFC; modeling;
D O I
10.1016/j.ssi.2008.03.029
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this work, we present a new approach to model the conductivity of polymeric sulfonated membranes. In the first part, we develop a model for the proton conductivity in a bulk acid solution. The model describes the vehicular and structural diffusion mechanisms at different proton concentrations as a function of four parameters with well defined physical meanings. These parameters are adjusted by fitting the experimental proton conductivity in a hydrochloric acid solution. In the second part, the effects of the presence of the porous membrane on the proton conductivity are added to the model. As a result, the model predicts the membrane conductivity as a function of its hydration level and porous structure. In the absence of experimental data on the membrane porous structure, the model can be used to predict the membrane porous structure once membrane conductivities are experimentally known. In this scope, in the third part, we provide a simple analytical description of the porous membrane based on the percolation theory depending on two structure parameters. A side result of the conductivity model is to provide analytical expressions for the drag coefficient, pore diameters and water permeability. All obtained results compare very well with experimental data. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:465 / 476
页数:12
相关论文
共 50 条
  • [21] The Incorporation of Sulfonated PAF Enhances the Proton Conductivity of Nafion Membranes at High Temperatures
    Cai, Kun
    Yu, Jinzhu
    Tan, Wenjun
    Gao, Cong
    Zhao, Zili
    Yuan, Suxin
    Cheng, Jinghui
    Yang, Yajie
    Yuan, Ye
    POLYMERS, 2024, 16 (15)
  • [22] Viscoelastic deformation of sulfonated polymeric cation-exchange membranes exposed to a pressure gradient
    Barragan, V. M.
    Pastuschuk, E.
    MATERIALS CHEMISTRY AND PHYSICS, 2014, 146 (1-2) : 65 - 72
  • [23] Improving of the performances of sulfonated PEEK-WC membranes by introducing heteropolyacids in the polymeric matrix
    Fontananova, Enrica
    Regina, Angelo
    Drioli, Enrico
    Trotta, Francesco
    DESALINATION, 2006, 200 (1-3) : 658 - 659
  • [24] Branched Sulfonated Polyimide/Sulfonated Methylcellulose Composite Membranes with Remarkable Proton Conductivity and Selectivity for Vanadium Redox Flow Batteries
    Long, Jun
    Yang, Hongyan
    Wang, Yanlin
    Xu, Wenjie
    Liu, Jun
    Luo, Huan
    Li, Jinchao
    Zhang, Yaping
    Zhang, Hongping
    CHEMELECTROCHEM, 2020, 7 (04) : 937 - 945
  • [25] Preparation and characterization of sulfonated PEEK-WC membranes for fuel cell applications - A comparison between polymeric and composite membranes
    Regina, A.
    Fontananova, E.
    Drioli, E.
    Casciola, M.
    Sganappa, M.
    Trotta, F.
    JOURNAL OF POWER SOURCES, 2006, 160 (01) : 139 - 147
  • [26] EFFECT OF PROSTAGLANDINS ON CONDUCTIVITY OF MODEL MEMBRANES
    GABRIELYAN, ES
    BADZHINYAN, SA
    BULLETIN OF EXPERIMENTAL BIOLOGY AND MEDICINE, 1981, 92 (10) : 1367 - 1368
  • [27] Improving the Conductivity of Sulfonated Polyimides as Proton Exchange Membranes by Doping of a Protic Ionic Liquid
    Chen, Bor-Kuan
    Wong, Jhong-Ming
    Wu, Tzi-Yi
    Chen, Lung-Chuan
    Shih, I-Chao
    POLYMERS, 2014, 6 (11): : 2720 - 2736
  • [28] The impact of pre-swelling on the conductivity and stability of Nafion/sulfonated silica composite membranes
    Yarrow, Kaitlyn M.
    De Almeida, Nicole E.
    Easton, E. Bradley
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2015, 119 (02) : 807 - 814
  • [29] Preparation and proton conductivity of composite membranes based on sulfonated poly(phenylene oxide) and benzimidazole
    Liu, Yi Feng
    Yu, Qin Chun
    Wu, Yi Hua
    ELECTROCHIMICA ACTA, 2007, 52 (28) : 8133 - 8137
  • [30] Studies on proton conductivity and methanol permeability of sulfonated polyetheretherketone/phosphotungstic acid composite membranes
    Xue Song
    Yin Geping
    ACTA POLYMERICA SINICA, 2006, (09) : 1083 - 1087