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The morphology effect on the selectivity of SPEEK/ENR membranes for direct methanol fuel cell

Wan Mohd. Noral Azman, Wan Noor Ezianti and Jaafar, Juhana and Wan Salleh, Wan Norharyati and Ismail, Ahmad Fauzi and Othman, Mohd. Hafiz Dzarfan and A. Rahman, Mukhlis and Aziz, Farhana and Yusof, Norhaniza (2017) The morphology effect on the selectivity of SPEEK/ENR membranes for direct methanol fuel cell. In: 5th International Conference on Material Science and Engineering Technology, ICMSET 2016, 29-31 Oct, 2016, Japan.

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.8...

Abstract

The objective of this study is to investigate the morphology effect of ENR-50 content on the conductivity and methanol permeability of SPEEK/ENR-50 membranes for DMFC application. Three different ratios (9.5:0.5, 8.5:1.5 and 7.5:2.5) of blended SPEEK/ENR-50 membranes were prepared via solution intercalation method. The cross sectional images of the all SPEEK/ENR-50 membranes studied by SEM shows an existence of ENR-50 droplets in SPEEK matrix which decrease in size with an increasing of ENR-50 content from 1.5 wt% to 2.5 wt%. The study of the performances of the blended membranes shows that the proton conductivity and methanol permeability of the membranes decrease with an increasing of ENR-50 content. However, the proton conductivity of the blended membrane with 0.5 wt% ENR-50 content (9.66×10-3 S cm-1) proven higher than pristine SPEEK but lower than Nafion 117. The barrier performance of all SPEEK/ENR-50 membranes was enhanced compared to the expensive Nafion 117 membrane and pristine SPEEK. Consequently, by incorporating ENR-50 content into SPEEK membrane, the selectivity of the membranes has considerably increased.

Item Type:Conference or Workshop Item (Paper)
Additional Information:RADIS System Ref No:PB/2017/11515
Uncontrolled Keywords:SPEEK, morphology effect
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:66205
Deposited By: Widya Wahid
Deposited On:17 Jul 2017 12:20
Last Modified:17 Jul 2017 12:20

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