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- W4384497767 abstract "The purpose of this study is to identify the steps involved in fabricating silica/chitosan composite membranes and their suitability in fuel cell application. It also intends to identify the physical characteristics of chitosan composite membranes, including their degree of water absorption, proton conductivity, methanol permeability, and functional groups. In this investigation, composite membranes were fabricated using the solution casting method with chitosan content of 5 g and silica variations dosage of 2% and 4% while stirring at a constant speed for 2h. According to the findings, the analysis of composite membranes produced chitosan membranes that were successfully modified with silica. The optimum membrane was found to be 4% s-SiO2 from the Sol-gel method with composite membrane's optimal condition of 0.234 cm/s proton conductivity, water uptake of 56.21%, and reduced methanol permeability of 0.99 × 10 -7 cm2/s in the first 30 minutes and 3.31 × 10-7 in the last 150 minutes. Maintaining lower water uptake capacity at higher silica content is still a challenge that needs to be addressed. However, the fabricated membranes showed exceptional results in terms of proton conductivity and methanol permeability." @default.
- W4384497767 created "2023-07-18" @default.
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- W4384497767 date "2023-07-17" @default.
- W4384497767 modified "2023-09-25" @default.
- W4384497767 title "Chitosan Membranes for Direct Methanol Fuel Cell Applications" @default.
- W4384497767 doi "https://doi.org/10.20944/preprints202307.1088.v1" @default.
- W4384497767 hasPublicationYear "2023" @default.
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