Journal
SOLID STATE IONICS
Volume 319, Issue -, Pages 278-284Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2018.02.019
Keywords
Direct methanol fuel cell; Polysulfone; Zeolite
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Funding
- Conductive and Electroactive Polymers Research Unit of Chulalongkorn University
- CU 2nd Century Project of Chulalongkorn University
- Thailand Research Fund (TRF)
- Royal Thai Government Budget
- College of Industrial Technology, King Mongkut's University of Technology North Bangkok
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Sulfonated ZSM-5 zeolite was successfully prepared by organo-functionalization method using poly (2-acrylamido-2-methylpropanesulfonic acid) and pAMPS. The modified ZSM-5 zeolite was characterized by TGA, EDX and XRD. The results showed that the organo-functional groups were incorporated onto the ZSM-5 surface. The structures of the modified ZSM-5/sulfonated polysulfone composite membranes were characterized by SEM. The SEM results showed a uniform and homogeneous distribution of the modified ZSM-5 zeolite in the sulfonated polysulfone matrix. The existence of the modified ZSM-5 in the sulfonated polysulfone, (with the degree of sulfonation equal to 70.57%) significantly improved the water uptake, proton conductivity, methanol permeability, and ion exchange capacity of the composite membranes relative to the pristine sulfonated polysulfone.
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