20.500.12556/RUL-135009 Efficient chitosan/nitrogen-doped reduced graphene oxide composite membranes for direct alkaline ethanol fuel cells Herein, we prepared a series of nanocomposite membranes based on chitosan (CS) and three compositionally and structurally different N-doped graphene derivatives. Two-dimensional (2D) and quasi 1D N-doped reduced graphene oxides (N-rGO) and nanoribbons (N-rGONRs), as well as 3D porous N-doped graphitic polyenaminone particles (N-pEAO), were synthesized and characterized fully to confirm their graphitic structure, morphology, and nitrogen (pyridinic, pyrrolic, and quaternary or graphitic) group contents. The largest (0.07%) loading of N-doped graphene derivatives impacted the morphology of the CS membrane significantly, reducing the crystallinity, tensile properties, and the KOH uptake, and increasing (by almost 10-fold) the ethanol permeability. Within direct alkaline ethanol test cells, it was found that CS/N rGONRs (0.07 %) membrane (P$_{max}$. = 3.7 mWcm$^{−2}$) outperformed the pristine CS membrane significantly (P$_{max}$. = 2.2 mWcm$^{−2}$), suggesting the potential of the newly proposed membranes for application in direct ethanol fuel cells. chitosan nitrogen-doped reduced graphene oxide anion-exchange membrane direct alkaline ethanol fuel cell hitozan grafen oksid membrane gorivne celice etanol true false true Angleški jezik Slovenski jezik Članek v reviji 2022-02-17 09:43:32 2022-02-17 09:43:34 2022-09-14 04:11:10 0000-00-00 00:00:00 2021 0 0 24 str. iss. 4, art. 1740 Vol. 22 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 543.2:66 1422-0067 10.3390/ijms22041740 50761731 RAZ_Gorgieva_Selestina_2021.pdf RAZ_Gorgieva_Selestina_2021.pdf 1 FEB5079143F3D3A24409A2AF30536865 e548f56259c5c296763b9d7ce1333d6f9359e243c94a5f2ff175a2c61ed380e7 a2ce80d1-8fce-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153822 https://www.mdpi.com/1422-0067/22/4/1740 1 73017957-8fcd-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153821 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0