Structural characterization and electrochemical properties of natural carbon fibers decorated with nanoparticles
The development of environmentally friendly energy and storage devices is of great importance nowadays. Among these, the development of Carbon fibers (CFs) based on biomass precursors is of particular interest due to the low-cost of production and the applications that can be granted to them due to...
Αποθηκεύτηκε σε:
| Κύριος συγγραφέας: | |
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| Μορφή: | bachelorThesis |
| Γλώσσα: | eng |
| Έκδοση: |
2021
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| Θέματα: | |
| Διαθέσιμο Online: | http://repositorio.yachaytech.edu.ec/handle/123456789/338 |
| Ετικέτες: |
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Προσθήκη ετικέτας | Περίληψη: | The development of environmentally friendly energy and storage devices is of great importance nowadays. Among these, the development of Carbon fibers (CFs) based on biomass precursors is of particular interest due to the low-cost of production and the applications that can be granted to them due to the addition of nanoparticles that can affect their structural and electrochemical properties. This work is focused on CFs generated from renewable resources. Carbon materials have been studied for different applications due to their excellent electrical conductivity, high surface area, and electrochemical properties. Thus, biomass-based CFs have been reported as one of the most promising materials for being used as electrodes and energy-storage devices. Incorporating heteroatoms into the carbon framework is an efficient approach for enhancing the electrochemical properties. CFs have a great potential for improving their capacitive properties by providing extra pseudo-capacitance and enhancing the surface wettability and carbons’ electronic conductivity. Currently, biomass-based CFs electrodes have been reported to have an excellent capacitive response when treating them with KOH and ZnCl2 as pore formers by the pyrolysis process, for being applied as electrical double-layer capacitors, as well as, electrodes fabricated from N-doped carbon fiber aerogel. Looking for more economical resources to fabricate these devices based on natural waste, the present work proposes the structural and electrochemical characterization of natural banana fibers waste. The natural banana fibers were pyrolyzed and subsequently doped with Au, Ag, CeO2, CoFe2O4 and Au/Fe3O4 nanoparticles. The materials were characterized by FTIR, XPS, SEM, and cyclic voltammetry. Overall, the present study presents a new opportunity for low-cost, natural, and new materials for electrodes and capacitor applications. |
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