共 37 条
Thin bonding layer using sulfonated poly(arylene ether sulfone)/PVdF blends for hydrocarbon-based membrane electrode assemblies
被引:17
作者:
Yu, Duk Man
[1
]
Kim, Tae-Ho
[1
]
Lee, Jang Yong
[1
]
Yoon, Sangjun
[1
]
Hong, Young Taik
[1
]
机构:
[1] Korea Res Inst Chem Technol, Ctr Membranes, Taejon 305600, South Korea
关键词:
Polymer electrolyte membrane;
bonding layer;
polyvinylidene fluoride;
sulfonated poly(arylene ether sulfone);
proton exchange membrane fuel cell;
PROTON-EXCHANGE-MEMBRANE;
METHANOL FUEL-CELL;
COMPOSITE MEMBRANE;
DURABILITY;
KETONE);
PERFORMANCE;
COPOLYMERS;
FABRICATION;
IONOMERS;
SYSTEMS;
D O I:
10.1016/j.electacta.2015.05.031
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
A hydrocarbon-membrane-based membrane electrode assembly (MEA) is fabricated by applying a thin bonding layer to a sulfonated poly(arylene ether sulfone) (SPAES) membrane to improve the interfacial adhesion between the membrane and electrodes. The bonding layer is applied on the surface of a SPAES membrane using a spraying technique to achieve an extremely thin layer (700-nm thick) that minimizes the increase in the MEA resistance. SPAES/polyvinylidene fluoride (PVdF) blends are used as the ionomer of a bonding layer because of the compatibility of the hydrocarbon membrane and the perfluorinated electrode binder. This study focuses on comparing the pristine membrane with the membrane using a bonding layer to determine the adhesive effect on the decal transfer process. Therefore, cell performance analysis, electrochemical impedance analysis, and durability testing at the voltage cyclic condition at fixed intervals were conducted to evaluate the adhesive effect. The membrane with the bonding layer containing 5 wt% PVdF exhibited the highest adhesion and cell performance because of the decrease in the interfacial resistance of the MEA. This result is comparable to the performance of Nafion 212 (1.02 A/cm(2) at 0.6 V), and a lower interfacial resistance is achieved after applying the accelerated operation protocol. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:268 / 275
页数:8
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