SGO/SPEN-based highly selective polymer electrolyte membranes for direct methanol fuel cells

被引：39

作者：

Cheng, Tao ^{[1
]}

Feng, Mengna ^{[1
]}

Huang, Yumin ^{[1
]}

Liu, Xiaobo ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Res Branch Adv Funct Mat, High Temp Resistant Polymers & Composites Key Lab, Chengdu 610054, Sichuan, Peoples R China

来源：

IONICS | 2017年 / 23卷 / 08期

关键词：

Sulfonated poly(arylene ether nitrile); Sulfonated graphene oxide; Highly selective; Composite membrane; Proton exchange membrane; PROTON-EXCHANGE MEMBRANES; NITRILE FUNCTIONALIZED GRAPHENE; ETHER KETONE) MEMBRANES; NANOCOMPOSITE MEMBRANE; COMPOSITE MEMBRANES; MECHANICAL-PROPERTIES; CARBON NANOTUBES; CROSS-LINKING; OXIDE; PERFORMANCE;

D O I：

10.1007/s11581-017-2057-2

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 study, proton-exchange membranes (PEMs) consisting of sulfonated poly(arylene ether nitrile) (SPEN) have been successfully prepared by incorporating a different amount of sulfonated graphene oxide (SGO). Incorporation of SGO can improve proton conductivity and reduce the methanol permeability. Besides, the existence of the intermolecular interactions between SPEN and SGO can improve the interfacial compatibility between filler and matrix. The resulting composite membranes show better mechanical property, proton conductivity and lower methanol permeability compared to that of pure SPEN. Furthermore, the composite membrane with 1 wt% SGO possesses good interfacial compatibility, exhibiting excellent proton conductivity (0.109 S/cm at 20 degrees C and 0.265 S/cm at 80 degrees C) and low methanol permeability (0.17x10(-6) cm(2).s(-1) at 20 degrees C). So it achieves the highest selectivity (6.412x10(5) S.s.cm(-3)), which is about 14 times higher than that of Nafion 117. All these data indicate that the SPEN/SGO composite membranes have good potential for applications in direct methanol fuel cells.

引用

页码：2143 / 2152

页数：10

共 47 条

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