Preparation of the Protic Ionic Liquid/PVDF-HFP Composite Membranes and its Performance for DMFC

Authors

Rui-ying MIAO, School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Jian-ling LI, School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Yong FANG, School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Xin-dong WANG, School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;

Abstract

The protic ionic liquid(PIL) α-methyl pyridinium trifluoroacetate([α-MPyH]Tfa) was synthesized by acid & alkali neutralization.Then PIL/PVDF-HFP composite membranes were prepared by means of phase inversion method using acetone as solvent.The conductivities of the composite membrane increased with the temperature and reached 8×10-3 S/cm,1×10-2 S/cm and 3×10-2 S/cm at room-temperature,30 ℃ and 80 ℃,respectively,by electrochemical impedance method.The properties of the methanol-rejecting of the membranes were measured by chronoamperometry as well.The results indicate that the properties of methanol-resistance of the membranes before and after IL combination were equivalent approximately.

Keywords

DMFC, protic ionic liquid, PVDF-HFP, conductivity, methanol-resistance

DOI Link

https://doi.org/10.61558/2993-074X.1954

Publication Date

2009-02-28

Online Available Date

2009-02-28

Revised Date

2009-02-28

Received Date

2009-02-28

Recommended Citation

Rui-ying MIAO, Jian-ling LI, Yong FANG, Xin-dong WANG. Preparation of the Protic Ionic Liquid/PVDF-HFP Composite Membranes and its Performance for DMFC[J]. Journal of Electrochemistry, 2009 , 15(1): 52-55.
DOI: 10.61558/2993-074X.1954
Available at: https://jelectrochem.xmu.edu.cn/journal/vol15/iss1/13