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Abstract
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 (Pmax. = 3.7 mWcm −2) outperformed the pristine CS membrane significantly (Pmax. = 2.2 mWcm −2), suggesting the potential of the newly proposed membranes for application in direct ethanol fuel cells.
Original language | English |
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Article number | 1740 |
Pages (from-to) | 1-25 |
Number of pages | 25 |
Journal | International Journal of Molecular Sciences |
Volume | 22 |
Issue number | 4 |
DOIs | |
Publication status | Published - 9 Feb 2021 |
Keywords
- Chitosan; Nitrogen-doped reduced Graphene Oxide; Anion-exchange membrane; Direct alkaline ethanol fuel cell
- Nitrogen-doped reduced graphene oxide
- Chitosan
- Direct alkaline ethanol fuel cell
- Anion-exchange membrane
ASJC Scopus subject areas
- Molecular Biology
- Spectroscopy
- Catalysis
- Inorganic Chemistry
- Computer Science Applications
- Physical and Theoretical Chemistry
- Organic Chemistry
Fields of Expertise
- Mobility & Production
Fingerprint
Dive into the research topics of 'Efficient Chitosan/Nitrogen-doped Reduced Graphene Oxide Composite Membranes for Direct Alkaline Ethanol Fuel Cells'. Together they form a unique fingerprint.Projects
- 1 Finished
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FWF – GODEFC - Graphene oxide based MEAs for the direct ethanol fuel cell
Hacker, V., Wolf, S., Roschger, M. & Samsudin, A. M.
1/01/19 → 30/06/22
Project: Research project