Physicochemical Studies of Chitosan Blended Sulfonated Poly Ether-Ether Ketone and Graphene Oxide as Filler for Direct Methanol Fuel Cell
Defect and Diffusion Forum(2022)
摘要
Chitosan (CS) was successfully extracted from the shrimp shell of Litopenaeus vanamei and used as a biopolymer for the fuel cells. The composite membranes containing chitosan blended poly ether-ether ketone (PEEK) and graphene oxide (GO) as filler were fabricated using solvent evaporation method and its physicochemical studies were also investigated. The sulfonation degree of sulfonated poly ether-ether ketone (SPEEK) was 60.61%. Among the fabricated membranes, the CS/SPEEK/SGO membrane was the best membrane to achieve high ion exchange capacity (IEC) which is 5.94 mmol.g-1. Moreover, its methanol uptake and permeability were 6.21% and 6.34×10-6 cm2.s-1, respectively. The highest water uptake was also obtained by CS/SPEEK/SGO membrane which is 61.54% followed by other membranes CS/SGO, CS/GO, CS/SPEEK, CS/SPEEK/GO, and CS. In a comparison, the lowest water uptake was obtained by pristine CS membrane which is 52.17%.
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