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Development and characterization of sulfonated polyethersulfone for proton exchanfe membrane fuel cell application

Mohd Norazam, Md Aris (2009) Development and characterization of sulfonated polyethersulfone for proton exchanfe membrane fuel cell application. Faculty of Chemical and Natural Resources Engineering , Universiti Malaysia Pahang.

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Abstract

Sulfonated polyethersulfone (SPES) with 20% concentration by weight were prepared with concentrated sulfonic acid at room temperature. Membrane solution developed in this study consisted of polyethersulfone dissolved in N,N – Dimethylformamide (DMF) as solvent, fuming sulfuric acid (36%) and concentrated sulfuric acid (95%-97%) as the sulfonating agent. The solution was cast manually at temperature between 25oC-28 oC. The investigation on water uptake, TGA, CHNOS elemental analysis, and FTIR has been conducted. Successful introduction of the sulfonated groups was confirmed by using the FTIR spectra in the wave number range 1020cm-1-1030 cm-1 which attributed to the symmetrical stretch of the sulfonated group. It was found that sulfonated membrane produced from mixed sulfonating agent (98% H2SO4 and 36% H2SO4.SO3) have higher degree of swelling. The type and ratio of the sulfonating agent has been identified as one of the most influential parameter in determining the bonding of -HCO3 as well as the membrane performance thus, producing different morphology. The parameter such as sulfonating agent ratio and type used strongly affects the membrane performance.

Item Type: Undergraduates Project Papers
Additional Information: Project paper (Bachelor of of Chemical engineering (Gas Technology)) -- Universiti Malaysia Pahang - 2009
Uncontrolled Keywords: Proton exchange membrane fuel cells - Design and construction Electrochemistry Membranes (Technology)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: nurudin nasir
Date Deposited: 04 May 2011 02:18
Last Modified: 03 Mar 2015 07:49
URI: http://umpir.ump.edu.my/id/eprint/1261
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