A performance and degradation study of Nafion 212 membrane for proton exchange membrane fuel cells

被引:110
作者
Fernandes, Adriano C. [1 ]
Ticianelli, Edson Antonio [1 ]
机构
[1] Univ Fed Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
关键词
PEM fuel cell; Nafion; 112; 212; Nafion degradation; WATER TRANSPORT-PROPERTIES; ACTIVE LAYER DEGRADATION; STEADY-STATE OPERATION; IMPEDANCE RESPONSE; MANAGEMENT; HYDROGEN; DURABILITY; ELECTRODES; PRESSURE; PLATINUM;
D O I
10.1016/j.jpowsour.2009.04.038
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 operational characteristics of the Nafion (R) 212 membrane (N212) are investigated and compared to that of Nafion (R) 112 (N112), in proton exchange membrane fuel cells (PEMFCs). The consequences of the membranes' degradation are also investigated, after accelerated aging experiments using Fenton's method. Studies were performed by single cell polarization and impedance measurements, as a function of the cell and gas humidification temperatures and the gases pressures. Polarization curves show that the cell with N212 presents higher performance than that with N112, when operating under air cathode. FTIR analyses indicated that the chemical structure of Nafion does not change after accelerated degradation tests for both membranes. In spite of this, significant differences were observed in the morphology, mainly for N212. The electrochemical studies confirmed that the degradation of the membranes leads to a reduction of the fuel cell performance by increasing the gas crossover, mainly H-2. Results also show that the N212 membrane may be less durable than N112. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:547 / 554
页数:8
相关论文
共 44 条
[1]   Proton-conducting polymer membranes in fuel cells - humidification aspects [J].
Andreaus, B ;
Scherer, GG .
SOLID STATE IONICS, 2004, 168 (3-4) :311-320
[2]  
[Anonymous], J ELECTROCHEM SOC
[3]   Recent developments in polymer electrolyte fuel cell electrodes [J].
Antolini, E .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2004, 34 (06) :563-576
[4]   Water management in PEM fuel cells [J].
Berg, P ;
Promislow, K ;
St Pierre, J ;
Stumper, J ;
Wetton, B .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (03) :A341-A353
[5]   Naflon perfluorinated membranes treated in Fenton media: radical species detected by ESR spectroscopy [J].
Bosnjakovic, A ;
Schlick, S .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (14) :4332-4337
[6]   Effect of water transport properties on a PEM fuel cell operating with dry hydrogen [J].
Cai, Yinghua ;
Hu, Jun ;
Ma, Haipeng ;
Yi, Baolian ;
Zhang, Huamin .
ELECTROCHIMICA ACTA, 2006, 51 (28) :6361-6366
[7]   XPS investigation of Nafion® membrane degradation [J].
Chen, Cheng ;
Levitin, Galit ;
Hess, Dennis W. ;
Fuller, Thomas F. .
JOURNAL OF POWER SOURCES, 2007, 169 (02) :288-295
[8]   Hydrogen economy for a sustainable development: state-of-the-art and technological perspectives [J].
Conte, M ;
Iacobazzi, A ;
Ronchetti, M ;
Vellone, R .
JOURNAL OF POWER SOURCES, 2001, 100 (1-2) :171-187
[9]   Effect of membrane characteristics and humidification conditions on the impedance response of polymer electrolyte fuel cells [J].
Freire, TJP ;
Gonzalez, ER .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 503 (1-2) :57-68
[10]   Effects of membrane electrode assembly preparation on the polymer electrolyte membrane fuel cell performance [J].
Frey, T ;
Linardi, M .
ELECTROCHIMICA ACTA, 2004, 50 (01) :99-105