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Facile Preparation of Well-Dispersed GO-SPEEK Composite Membranes by Electrospun for Fuel Cell Applications

Published online by Cambridge University Press:  11 February 2015

Xu Liu ,
Xiaoyu Meng ,
Chuanming Shi ,
Jiangbei Huo ,
Ziqing Cai ,
Lishan Cui  and
Qiong Zhou
Xu Liu
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Xiaoyu Meng
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Chuanming Shi
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Jiangbei Huo
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Ziqing Cai
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Lishan Cui
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Qiong Zhou
Affiliation:
Department of Materials Science and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
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Abstract

Graphene oxide (GO) is one of the most attractive inorganic nanofillers in proton exchange membranes (PEMs) for its large specific surface area and high proton conductivity. The proton conductivity of GO nanosheet is known to be orders of magnitude greater than the bulk GO, thus it is essential to improve the dispersion of GO nanosheets in the PEM matrix to achieve higher conductivity. In this study, we report a facile and effective method to fabricate a GO/sulfonated poly ether ether ketone (SPEEK) composite membrane with well-dispersed GO nanosheets in SPEEK matrix by using electrospinning technique for direct methanol fuel cell application. The composite membrane exhibits improved proton conductivity, dimensional stability and methanol barrier property due to the presence of well-dispersed GOs. It is believed that the GO nanosheets can not only induce continuous channels for proton-conducting via Grotthuss mechanism, but also act as methanol barriers to hinder the methanol molecules from passing through the membrane.

Keywords

fiberpolymernanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1735: Symposium S/W/CC – Advanced Materials for Photovoltaic, Fuel Cell and Electrolyzer, and Thermoelectric Energy Conversion , 2015 , mrsf14-1735-s05-18
Copyright
Copyright © Materials Research Society 2015 

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References

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