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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jena, Rajeeb Kumar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2018Development of a 3D graphene aerogel and 3D porous graphene/MnO 2 @polyaniline hybrid film for all-solid-state flexible asymmetric supercapacitorscitations
- 2017Development of 3D Urchin-Shaped Coaxial Manganese Dioxide@Polyaniline (MnO2@PANI) Composite and Self-Assembled 3D Pillared Graphene Foam for Asymmetric All-Solid-State Flexible Supercapacitor Applicationcitations
- 2015Non-covalent interactions and supercapacitance of pseudo-capacitive composite electrode materials (MWCNT-COOH/MnO2/PANI)citations
- 2015Graphene/heparin template-controlled polyaniline nanofibers composite for high energy density supercapacitor electrodecitations
- 2014Synthesis of graphene/vitamin C template-controlled polyaniline nanotubes composite for high performance supercapacitor electrodecitations
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article
Non-covalent interactions and supercapacitance of pseudo-capacitive composite electrode materials (MWCNT-COOH/MnO2/PANI)
Abstract
We present the in situ oxidative synthesis and electrochemistry of novel pseudo-capacitive nanostructured composite electrode material based on multi-walled carbon nanotube (MWCNT), manganese dioxide (MnO<sub>2</sub>) and polyaniline (PANI), namely, MWCNT-COOH/MnO<sub>2</sub>/PANI (PCNAM) for high performance supercapacitor applications. The composite shows about six-fold improvement of electrochemical response compared to MWCNT. The maximum specific capacitance, energy density, and power density of PCNAM were 517.13 ± 15.25 F/g, 71.88 ± 2.12 W h/kg and 10.08 ± 0.26 kW/kg, respectively. The high capacitance of the composite is due to the combination of the electrical double layer capacitance of MWCNT (in MWCNT-COOH) and the gradual introduction of pseudo-capacitance through the redox processes of PANI, -COOH (in MWCNT-COOH) and MnO<sub>2</sub>. We have also demonstrated the charge transfer phenomena through non-covalent supramolecular interactions (i.e., π-π, n-π, and metal-π) between the components of PANI, MWCNT-COOH, and MnO<sub>2</sub> due to the presence of double bonds, availability of lone pair electrons, free charges on nitrogen/oxygen atoms, and vacant metal d orbitals. The existence of such non-covalent interaction was supported by data from Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis. © 2014 Elsevier B.V. All rights reserved.