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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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Sel, Ozlem
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Current collector-free symmetric μ-supercapacitor based on a ternary composite of graphene, polydopamine and Co 3 O 4citations
- 2023Current collectors corrosion behaviours and rechargeability of TiO2 in Aqueous Electrolyte Aluminium-ion batteriescitations
- 2023Highly Ordered Graphene Polydopamine Composite Allowing Fast Motion of Cations: Toward a High‐Performance Microsupercapacitorcitations
- 2022Identifying interfacial mechanisms limitations within aqueous Zn-MnO2 batteries and means to cure them with additivescitations
- 2022Identifying interfacial mechanisms limitations within aqueous Zn-MnO2 batteries and means to cure them with additivescitations
- 2022Interface Properties of 2D Graphene–Polydopamine Composite Electrodes in Protic Ionic Liquid-Based Electrolytes Explored by Advanced Electrogravimetrycitations
- 2022Aqueous Multivalent Charge Storage Mechanism in Aromatic Diamine-Based Organic Electrodescitations
- 2021Poly( ortho -phenylenediamine) overlaid fibrous carbon networks exhibiting a synergistic effect for enhanced performance in hybrid micro energy storage devicescitations
- 2021Poly( ortho -phenylenediamine) overlaid fibrous carbon networks exhibiting a synergistic effect for enhanced performance in hybrid micro energy storage devicescitations
- 2021Single Wall Carbon Nanotubes/Polypyrrole Composite Thin Film Electrodes: Investigation of Interfacial Ion Exchange Behaviorcitations
- 2021Scrutiny of the LiCoO 2 Composite Electrode/Electrolyte Interface by Advanced Electrogravimetry and Implications for Aqueous Li-Ion Batteriescitations
- 2021Electrosynthesis of hierarchical Cu2O–Cu(OH)2 nanodendrites supported on carbon nanofibers/poly(para-phenylenediamine) nanocomposite as high-efficiency catalysts for methanol electrooxidationcitations
- 2021Preventing Graphene from Restacking via Bioinspired Chemical Inserts: Toward a Superior 2D Micro-supercapacitor Electrodecitations
- 2020Prompt microwave-assisted synthesis of carbon coated Si nanocomposites as anode for lithium-ion batteriescitations
- 2020Making advanced electrogravimetry as an affordable analytical tool for the battery interface characterizationcitations
- 2019Correlation between the interfacial ion dynamics and charge storage properties of poly(ortho-phenylenediamine) electrodes exhibiting high cycling stability.
- 2019Correlation between the interfacial ion dynamics and charge storage properties of poly(ortho-phenylenediamine) electrodes exhibiting high cycling stability.
- 2019Ion Dynamics at the Single Wall Carbon Nanotube Based Composite Electrode/Electrolyte Interface: Influence of the Cation Size and Electrolyte pHcitations
- 2018Charge storage properties of single wall carbon nanotubes/Prussian blue nanocube composites studied by multi-scale coupled electrogravimetric methodscitations
- 2017Dynamic Resolution of Ion Transfer in Electrochemically Reduced Graphene Oxides Revealed by Electrogravimetric Impedancecitations
- 2017Correlation between the proton conductivity and diffusion coefficient of sulfonic acid functionalized chitosan and Nafion composites via impedance spectroscopy measurementscitations
- 2014Influence of the Incorporation of CeO2 Nanoparticles on the Ion Exchange Behavior of Dodecylsulfate Doped Polypyrrole Films: Ac-Electrogravimetry Investigationscitations
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article
Ion Dynamics at the Single Wall Carbon Nanotube Based Composite Electrode/Electrolyte Interface: Influence of the Cation Size and Electrolyte pH
Abstract
International audience ; Electrochemical quartz crystal microbalance and ac-electrogravimetry methods were employed to study ion dynamics in single wall carbon nanotube (SWCNT) based electrodes in various aqueous electrolytes and different electrolyte pH values. The pH dependence of the electroadsorption phenomena studied in NaCl at pH 2, pH 7, and pH 10 indicated that low and high pH values amplify the anion and cation contribution, respectively, which means that in the same potential range, the pH of the aqueous electrolyte is adjustable to preferentially electroadsorb cations or anions. The cation size dependence of the electrodeposition phenomena was also studied by changing the electrolyte cation from Li+, Na+ to K+. The results indicated that Li+ and Na+ species are more tightly bonded to their water molecules in their hydration shell compared to the potassium species; i.e., dehydration of K+ is easier than that of Na+ and Li+. K+ ions due their completely dehydrated state probably become equivalent to partially dehydrated Na+·nH2O, in terms of kinetics. Li+·nH2O ions dynamics is slower since it is much more difficult for them to get rid of their hydration shell, making their transfer the slowest among the other cations. Our electrogravimetric results clearly indicate that the dehydration affinity and the ions’ size play a role in the electroadsorption dynamics of the species on the SWCNT based composite electrodes.