Non-destructive modification on Nafion membrane via in-situ inserting of sheared graphene oxide for direct methanol fuel cell applications

被引：38

作者：

Li, Jing ^{[1
]}

Xu, Guoxiao ^{[1
]}

Cai, Weiwei ^{[1
]}

Xiong, Jie ^{[1
,2
]}

Ma, Liying ^{[3
]}

Yang, Zehui ^{[1
]}

Huang, Yunjie ^{[1
]}

Cheng, Hansong ^{[1
]}

机构：

[1] China Univ Geosci Wuhan, Fac Mat Sci & Chem, Sustainable Energy Lab, 388 Lumo Rd, Wuhan 430074, Hubei, Peoples R China

[2] Zaozhuang Univ, Coll Chem Chem Engn & Mat Sci, Zaozhuang 277160, Peoples R China

[3] Guizhou Normal Univ, Sch Chem & Mat Sci, 116 Baoshan North Rd, Guiyang 550001, Guizhou, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2018年 / 282卷

基金：

中国国家自然科学基金;

关键词：

Direct methanol fuel cell; Nafion membrane; Swelling-filling; Sheared graphene oxide; Non-destructive modification; COMPOSITE MEMBRANES; QUANTUM DOTS; PERFORMANCE; CROSSOVER; ELECTROLYTE; DESIGN; DMFC; SHEETS; BARRIER; FILLERS;

D O I：

10.1016/j.electacta.2018.06.072

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Based on a swelling-filling modification strategy, sheared graphene oxide (SGO) sheets are in-situ inserted into the Nafion membrane and act as bi-functional fillers to simultaneously improve the methanol-permeation resistivity and proton conductivity. Proton/methanol selectivity, as a key descriptor of overall performance of the proton exchange membrane, of the Nafion membrane is therefore 4-fold increased. At the same time, the mechanical, oxidative and thermal stabilities of the Nafion membrane are also improved by the SGO sheets due to the interaction between SGO and Nafion. As a result, the swelling-filling modified SGO - Nafion membrane is therefore considered as a promising electrolyte for direct methanol fuel cell (DMFC) application and the power of the Nafion based DMFC can be improved by ca. 50% during the polarization measurement. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：362 / 368

页数：7

共 58 条

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