Development and characterization of sulfonated olyethersulfone membrane as a potential material for direct methanol fuel cell

Rosmainiza, Ibrahimi Husaimi (2008) Development and characterization of sulfonated olyethersulfone membrane as a potential material for direct methanol fuel cell. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang.

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Abstract

Sulfonated polyethersulfone membrane is one of the potential candidates to be use as an electrolyte for fuel cell application due to its high thermal resistance. With a high heat deflection temperature of 400°F (204°C), it can withstand continuous exposure to heat and still absorb tremendous impact without cracking or breaking. Sulfonated polyethersulfone membrane has been prepared by conducting sulfonation process with sulfuric acid as a sulfonating agent and then the polymer precipitated had been dissolved in N-Methyl-2-pyrrolidone. The functional groups of sulfonic acids have been successfully incorporated in the PES backbone and detected using FTIR at 1033cm -1 wavelength. Membranes with 35.7% degree of sulfonation possess water uptake at the room temperature of 13.1 wt% and the value of IEC is about 11.43 mmol/g. The water uptake of the sulfonated polyethersulfone membrane increased with temperature from 13.1 wt% up to 46 wt%. Meanwhile, the methanol uptake was increased with an increased in concentration from 14.9 wt% to 26.2 wt%. Membranes prepared from SPES showed lower decomposition temperature and have good properties to be applied as a membrane for DMFC.

Item Type: Undergraduates Project Papers
Additional Information: Project paper (Bachelor of Chemical Engineering (Gas Technology) ) --- Universiti Malaysia Pahang - 2008, SV: PN. ROSMAWATI BT NAIM, NO CD: 2736
Uncontrolled Keywords: Membranes (Technology)
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Rosfadilla Mohamad Zainun
Date Deposited: 13 Jul 2010 02:40
Last Modified: 14 Jul 2023 07:47
URI: http://umpir.ump.edu.my/id/eprint/787
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