Parameters Affecting Synthesis of Sulfonated Chitosan Membrane for Proton Exchange Membrane in Fuel Cells | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 67, Issue 5, May 2024, Page 191-204 PDF (1.16 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2023.230907.8651 | ||||
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| Authors | ||||
Sara gamil Abd-elnaeem   1; Azza Ibrahim Hafez 2; kamel M. El-Khatib 3; Heba Abdallah Mohamed 4; Mai Mohamed Kamal El Din Fouad 5; Ehab Abadir6
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| 1Chemical Engineering and Pilot Plant Department, Engineering, Renewable Energy Research Institute, National Research Center. | ||||
| 2Department of Chemical Engineering, National Research Centre, Dokki, Cairo, Egypt | ||||
| 3Chemical Engineering Department, Engineering Division, National Research Center | ||||
| 4Chemical engineering department , Engineering division, National research centre | ||||
| 5Cairo University Faculty of Engineering Chemical Engineering Department | ||||
| 6Department of Chemical Engineering, Faculty of Engineering, Cairo University, Egypt. | ||||
| Abstract | ||||
| Sulfonated chitosan (SCS) was prepared and characterized to be used in the preparation of poly electrolyte membranes in fuel cells (PEMFCs). The studied parameters were: sulfonating agents and their concentrations; reaction time; temperatures; and stirring rates. The characterizations of chitosan (CS) and SCS were investigated by 1HNMR, FTIR, XRD, TGA, and DTG. Degree of sulfonation (DS), ionic exchange capacity (IEC), and sulfur content (Sc) of SCS were 71.256%, 0.4502 mmol/g, and 1.447%, respectively, at optimum sulfonating conditions of 12 hr, 70 oC, and 600 rpm by using 4 M sulfuric acid. The water uptake of the SCS membrane was 37.4%, and the mechanical properties were 6.95 MPa and 14% for tensile strength and elongation at break, respectively. | ||||
| Keywords | ||||
| chitosan; sulfonation; Poly electrolyte membrane; Fuel cell; ion exchange capacity | ||||
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