20.500.12556/RUL-152951 High performance chitosan/nanocellulose-based composite membrane for alkaline direct ethanol fuel cells Polysaccharide anion exchange membranes (AEMs) containing chitosan (CS), cellulose nanofibrils (CNFs) and CNFs quaternized with poly(diallyldimethylammonium chloride) (CNF(P)s) were developed for use in alkaline direct ethanol fuel cells (ADEFCs). The resulting composite membranes prepared by the solvent casting process based on an experimental design were comprehensively assessed for morphology, KOH uptake, swelling ratio, EtOH permeability, mechanical properties, ionic conductivity, and cell performance. The fabricated CS-based composite membranes with CNF(P) fillers were superior to the commercial Fumatech FAA-3-50 membrane in terms of Young's modulus and tensile strength (69 % and 85 % higher, respectively), ion exchange capacity (169 % higher), and ionic conductivity (228 % higher). Single fuel cell tests have shown excellent performance of the CS-based membranes with CNF and CNF(P) fillers, as they exhibited up to 86 % improvement in power density at 80 °C compared to the commercial membrane (65.1 mW/cm$^2$ vs. 35.1 mW/cm$^2$) and higher maximum power density at all test conditions. chitosan cellulose nanofibrils poly(diallyldimethylammonium chloride) anion exchange membrane alkaline direct ethanol fuel cell hitozan celulozni nanofibrili anionsko izmenjevalna membrana alkalne etanolne gorivne celice true false true Angleški jezik Slovenski jezik Članek v reviji 2023-12-13 09:19:52 2023-12-13 09:19:54 2023-12-14 03:55:03 0000-00-00 00:00:00 2023 0 0 15 str. pt. 8, art. 127693 Vol. 253 Dec. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 606:[620.925:579]:621.352.6:620.3 1879-0003 10.1016/j.ijbiomac.2023.127693 171005443 1-s2.0-S0141813023045919-main.pdf 1-s2.0-S0141813023045919-main.pdf 1 D5F48BCFDB08E8AD18B2E7742827957C 03a37467130b2981b52f688c612924601888f3268cca11d165f462dc2c46f40e b0381e39-9990-11ee-9499-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178703 https://www.sciencedirect.com/science/article/pii/S0141813023045919 0 90aba9e1-9990-11ee-9499-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178702 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0