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VOL. 17, NO. 1, JANUARY 2022 ISSN 1819-6608 ARPN Journal of Engineering and Applied Sciences ©2006-2022 Asian Research Publishing Network (ARPN). All rights reserved. www.arpnjournals.com (a) (b) The SEM images (Figure-5) show that the particle of zeolite after alkali treatment is larger compared to NZ is according to Ates dan Akgül. [38] alkali treatment has resulted in granule zeolites particles. A likely explanation for these observations is the alkali solution of NaOH cause the formation of mesopore zeolite as a result of the partial collapse of micropores. It is also observed that after alkali treatment of NZ, agglomeration occurred. 3.2 Performance of Proton Exchange Membrane (PEM) 3.2.1 Water uptake and swelling ratio AT-NZ was mixed with PVDF and activated carbon to prepare PEM. Subsequently, the synthesized PEM was characterized. The most important performance characteristics of PEM is water uptake and swelling ratio to study the potential of this material to be used as PEM. The water uptake property is directly linked to proton conductivity, while swelling ratio is to determine the structural selectivity and stability of membrane. The effect of activated carbon in the membrane was study and the result is summarized di Table-2 and Figure-6. Figure-5. SEM images of (a) NZ (b) AT-NZ. Table-2. Water uptake and swelling ratio of (a) NZ membrane with different activated carbon loading and (b) Natural and alkali treatment membranes. Membrane Density (g/cm3) (a) Uptake water Swelling ratio Figure (%) (%) NZ-3 2,68 g/cm3 13,964 0,104 NZ-5 2,89 g/cm3 15,630 1,030 NZ-7 2,91g/cm3 12,470 0,860 Membrane NZ-5 NZ-A T Nafion 117 (b) Uptake water (%) 15,630 16,997 28,800 Swelling ratio (%) 1,030 1,318 [24] 62PDF Image | ZEOLITE AND ACTIVATED CARBON FOR PROTON EXCHANGE MEMBRANE FUEL CELLS
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