Gas permeation in perflurosulfonated membranes: Influence of temperature and relative humidity

被引:61
作者
Baschetti, Marco Giacinti [1 ]
Minelli, Matteo [1 ,2 ]
Catalano, Jacopo [3 ]
Sarti, Giulio C. [1 ]
机构
[1] Alma Mater Studiorum Univ Bologna, Dipartimento Ingn Civile Chim Ambientale & Mat DI, I-40131 Bologna, Italy
[2] Alma Mater Studiorum Univ Bologna, CIRI MAM, I-40131 Bologna, Italy
[3] Aarhus Univ, Dept Engn, DK-8000 Aarhus C, Denmark
关键词
Perflurosulfonated membranes; Gas permeability; Nafion; Aquivion; Humid gas permeation; PROTON-EXCHANGE MEMBRANES; WATER-VAPOR SORPTION; TRANSPORT-PROPERTIES; FACILITATED TRANSPORT; OXYGEN PERMEATION; NAFION; ION; PERMEABILITY; DIFFUSION; CO2;
D O I
10.1016/j.ijhydene.2013.06.104
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
The permeation of CO2, O-2, N-2 and He in two perfuorosulfonated ionomer (PFSI) membranes, Nafion (R) 117 and Aquivion (R), has been studied as a function of temperature and relative humidity. Experiments were carried out in wide ranges of temperatures (25-65 degrees C) and relative humidity (0-80%), by means of a manometric apparatus specifically developed to that aim. The results showed the marked effect of the presence of water on the gas transport properties of the hydrophilic materials studied. Indeed, when the relative humidity is raised to 70%, the permeability of the different gases increases up to two orders of magnitude with respect to the values obtained in dry conditions. The two materials showed very similar permeability values, and differences seldom exceeded 20%. An analogous behavior was also observed for temperature dependence of gas permeability in the two PSFIs, that indeed followed an Arrhenius behavior, in both dry and humid conditions. The activation energies were slightly higher for Nafion than for Aquivion in dry conditions, but very similar values were observed at higher water contents. At high relative humidity, gas permeabilities in PFSIs are similar to those in pure water, suggesting that permeation in hydrated PSFI is controlled by sorption and diffusion of the penetrant in the water-filled channels present inside the matrix. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:11973 / 11982
页数:10
相关论文
共 55 条
[1]  
[Anonymous], 1973, ZEOLITE MOL SIEVES S
[2]  
[Anonymous], 2004, Fuel Cell Handbook, V7
[3]   Membrane electrode assemblies based on perfluorosulfonic ionomers for an evolving fuel cell technology [J].
Arcella, V. ;
Ghielmi, A. ;
Merlo, L. ;
Gebert, M. .
DESALINATION, 2006, 199 (1-3) :6-8
[4]   High performance perfluoropolymer films and membranes [J].
Arcella, V ;
Ghielmi, A ;
Tommasi, G .
ADVANCED MEMBRANE TECHNOLOGY, 2003, 984 :226-244
[5]   Hyflon ion membranes for fuel cells [J].
Arcella, V ;
Troglia, C ;
Ghielmi, A .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (20) :7646-7651
[6]   High Temperature Operation of a Solid Polymer Electrolyte Fuel Cell Stack Based on a New Ionomer Membrane [J].
Arico, A. S. ;
Di Blasi, A. ;
Brunaccini, G. ;
Sergi, F. ;
Dispenza, G. ;
Andaloro, L. ;
Ferraro, M. ;
Antonucci, V. ;
Asher, P. ;
Buche, S. ;
Fongalland, D. ;
Hards, G. A. ;
Sharman, J. D. B. ;
Bayer, A. ;
Heinz, G. ;
Zandona, N. ;
Zuber, R. ;
Gebert, M. ;
Corasaniti, M. ;
Ghielmi, A. ;
Jones, D. J. .
FUEL CELLS, 2010, 10 (06) :1013-1023
[7]   Oxygen and hydrogen permeation properties and water uptake of Nafion(R) 117 membrane and recast film for PEM fuel cell [J].
Broka, K ;
Ekdunge, P .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (02) :117-123
[8]   New approach for the evaluation of membranes transport properties for polymer electrolyte membrane fuel cells [J].
Brunetti, Adele ;
Fontananova, Enrica ;
Donnadio, Anna ;
Casciola, Mario ;
Di Vona, Maria Luisa ;
Sgreccia, Emanuela ;
Drioli, Enrico ;
Barbieri, Giuseppe .
JOURNAL OF POWER SOURCES, 2012, 205 :222-230
[9]   Microelectrode investigation of oxygen permeation in perfluorinated proton exchange membranes with different equivalent weights [J].
Buchi, FN ;
Wakizoe, M ;
Srinivasan, S .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (03) :927-932
[10]   The effect of relative humidity on the gas permeability and swelling in PFSI membranes [J].
Catalano, J. ;
Myezwa, T. ;
De Angelis, M. G. ;
Baschetti, M. Giacinti ;
Sarti, G. C. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (07) :6308-6316