| People | Locations | Statistics |
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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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Nicolosi, Valeria
European Research Council
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2024Controlled Fabrication of Native Ultra-Thin Amorphous Gallium Oxide From 2D Gallium Sulfide for Emerging Electronic Applications
- 2024Dielectric Engineering of Perovskite BaMnO<sub>3</sub> for the Rapid Heterogeneous Nucleation of Pt Nanoparticles for Catalytic Applications
- 2024Liquid-Phase Exfoliation of Arsenic Trisulfide (As2S3) Nanosheets and Their Use as Anodes in Potassium-Ion Batteriescitations
- 2023Amorphous 2D-Nanoplatelets of Red Phosphorus Obtained by Liquid-Phase Exfoliation Yield High Areal Capacity Na-Ion Battery Anodescitations
- 2023Layered double hydroxide/boron nitride nanocomposite membranes for efficient separation and photodegradation of water-soluble dyescitations
- 2023MXene functionalized collagen biomaterials for cardiac tissue engineering driving iPSC-derived cardiomyocyte maturationcitations
- 2023Expanding the Perovskite Periodic Table to Include Chalcogenide Alloys with Tunable Band Gap Spanning 1.5–1.9 eVcitations
- 2023Amorphous 2D‐Nanoplatelets of Red Phosphorus Obtained by Liquid‐Phase Exfoliation Yield High Areal Capacity Na‐Ion Battery Anodescitations
- 2022Investigation of process by-products during the Selective Laser Melting of Ti6AL4V powdercitations
- 2022Laser-powder bed fusion of silicon carbide reinforced 316L stainless steel using a sinusoidal laser scanning strategycitations
- 2021Inclusion of 2d transition metal dichalcogenides in perovskite inks and their influence on solar cell performancecitations
- 20210D-1D hybrid silicon nanocomposite as lithium-ion batteries anodescitations
- 2020Investigation of process by-products during the Selective Laser Melting of Ti6AL4V powdercitations
- 2020Extra lithium-ion storage capacity enabled by liquid-phase exfoliated indium selenide nanosheets conductive networkcitations
- 2020Extra lithium-ion storage capacity enabled by liquid-phase exfoliated indium selenide nanosheets conductive networkcitations
- 2020Mechanism of stress relaxation and phase transformation in additively manufactured Ti-6Al-4V via in situ high temperature XRD and TEM analysescitations
- 20200D-1D hybrid silicon nanocomposite as lithium-ion batteries anodescitations
- 2019Silanization of silica nanoparticles and their processing as nanostructured micro-raspberry powders - a route to control the mechanical properties of isoprene rubber compositescitations
- 2018Colloidal core-satellite supraparticles via preprogramed burst of nanostructured micro-raspberry particlescitations
- 2018Tailored Nickel-Iron Layered Double Hydroxide Particle Size for Optimized O.E.R. Catalysis
- 2018Low-temperature synthesis and investigation into the formation mechanism of high quality Ni-Fe layered double hydroxides hexagonal plateletscitations
- 2018Stamping of Flexible, Coplanar Micro-Supercapacitors Using MXene Inkscitations
- 2018Structural transformation of layered double hydroxides: An in situ TEM analysiscitations
- 2018Percolating metallic structures templated on laser-deposited carbon nanofoams derived from graphene oxide: applications in humidity sensingcitations
- 2018Enhanced thermoelectric performance of Bi-Sb-Te/Sb2O3 nanocomposites by energy filtering effectcitations
- 2018A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al–B4C composites produced by semisolid stir castingcitations
- 2017Low-temperature synthesis of high quality Ni-Fe layered double hydroxides hexagonal platelets
- 2017Enabling Flexible Heterostructures for Li-Ion Battery Anodes Based on Nanotube and Liquid-Phase Exfoliated 2D Gallium Chalcogenide Nanosheet Colloidal Solutionscitations
- 2016In-Situ TEM Analysis of Ink-Jet Printed MnO<sub>2</sub>-Graphene for Supercapacitor Electrodes
- 2016Thin-Film Supercapacitor Electrodes Based on Nanomaterials Processed By Ultrasound Irradiation
- 2016Production of Ni(OH) 2 nanosheets by liquid phase exfoliation: From optical properties to electrochemical applicationscitations
- 2016Pushing up the magnetisation values for iron oxide nanoparticles via zinc doping: X-ray studies on the particle's sub-nano structure of different synthesis routescitations
- 2015Basal-Plane Functionalization of Chemically Exfoliated Molybdenum Disulfide by Diazonium Saltscitations
- 2014Supercapacitor Electrodes of MnO<sub>2</sub> and MnO<sub>2</sub>/Graphene Nanosheets Synthesized by Liquid Phase Exfoliation
- 2014Production of Molybdenum Trioxide Nanosheets by Liquid Exfoliation and Their Application in High-Performance Supercapacitorscitations
- 2014Hybrids of 2D-Nanomaterials for Supercapacitor/Battery Applications
- 2013Liquid Exfoliation of Layered Materialscitations
- 2012Covalently functionalized hexagonal boron nitride nanosheets by nitrene addition
- 2008High-yield production of graphene by liquid-phase exfoliation of graphitecitations
- 2008High-yield production of graphene by liquid-phase exfoliation of graphitecitations
Places of action
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document
Supercapacitor Electrodes of MnO<sub>2</sub> and MnO<sub>2</sub>/Graphene Nanosheets Synthesized by Liquid Phase Exfoliation
Abstract
<jats:p>MnO<jats:sub>2</jats:sub> has been extensively investigated due to its high theoretical capacitance of1100 to 1300 F.g<jats:sup>-11</jats:sup>,environmental friendly nature and low cost <jats:sup>2</jats:sup>.The MnO<jats:sub>2 </jats:sub>charge storage mechanism relies on the exchange of protons and/or cations with the electrolyte, redox activity involving a Mn(IV)/Mn(III) transition, and chemisorption of ions onto the MnO<jats:sub>2</jats:sub> surface <jats:sup>1,3,4</jats:sup>. As these are surface processes, it is paramount to design MnO<jats:sub>2</jats:sub> structures with an accessible high surface area. Recently, liquid phase exfoliation has become a powerful technique for the preparation of 2D nanosheets presenting a high surface area<jats:sup>5,6</jats:sup>. Therefore this technique can be used to producenano layers of MnO<jats:sub>2</jats:sub>, which will present an enhancedutilization of the active material and a better electrochemical performance<jats:sup>7</jats:sup>. </jats:p><jats:p>In the present work a high-surface area, porous MnO<jats:sub>2</jats:sub> powder was produced through the oxidation of Mn(NO3)<jats:sub>2</jats:sub> by KMnO<jats:sub>4</jats:sub>. A poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) triblock copolymer (PEG-PPO-PEG P123) was used as templating agent for the formation of a “flower-like” nanostructure (MOFN) with protruding 2D-nanostructures<jats:sup>8</jats:sup>. Subsequently, MOFN wére exfoliated in isopropanol at 37kHz for 3 hours, resulting in two types of materials: manganese oxide nanolayers (MOL) and a partially exfoliated material (PEMO). Following a novel approach, the MOFN were also exfoliated simultaneously with graphite resulting in a MnO<jats:sub>2</jats:sub>layers/Graphene hybrid (GMOH).</jats:p><jats:p>The obtained dispersions were sprayed onto ITO electrodes and the electrochemical properties studied by cyclic voltammetry. By testing electrodes with different thicknesses it was found out that the electrochemical utilization is enhanced for GMOH (80.0 mF.cm<jats:sup>-2</jats:sup>) at a thickness of 9700 nm). A capacitance as high as 300 F.cm<jats:sup>-3</jats:sup> was also achieved with GMOH thin electrodes followed by 225 F.cm<jats:sup>-3</jats:sup> for MOL and 100 F.cm<jats:sup>-3</jats:sup>for PEMO.</jats:p><jats:p>(1)Wang, G.; Zhang, L.; Zhang, J. <jats:italic>Chemical Society Reviews</jats:italic><jats:bold>2012</jats:bold>, <jats:italic>41</jats:italic>, 797.</jats:p><jats:p>(2)Kang, J.; Hirata, A.; Kang, L.; Zhang, X.; Hou, Y.; Chen, L.; Li, C.; Fujita, T.; Akagi, K.; Chen, M. <jats:italic>Angewandte Chemie International Edition</jats:italic><jats:bold>2013</jats:bold>, <jats:italic>52</jats:italic>, 1664.</jats:p><jats:p>(3)Xu, C.; Kang, F.; Li, B.; Du, H. <jats:italic>Journal of materials research</jats:italic><jats:bold>2010</jats:bold>, <jats:italic>25</jats:italic>, 1421.</jats:p><jats:p>(4)Bélanger, D.; Brousse, L.; Long, J. W. <jats:italic>The Electrochemical Society Interface</jats:italic><jats:bold>2008</jats:bold>, <jats:italic>17</jats:italic>, 49.</jats:p><jats:p>(5)Coleman, J. N.; Lotya, M.; O’Neill, A.; Bergin, S. D.; King, P. J.; Khan, U.; Young, K.; Gaucher, A.; De, S.; Smith, R. J.; Shvets, I. V.; Arora, S. K.; Stanton, G.; Kim, H.-Y.; Lee, K.; Kim, G. T.; Duesberg, G. S.; Hallam, T.; Boland, J. J.; Wang, J. J.; Donegan, J. F.; Grunlan, J. C.; Moriarty, G.; Shmeliov, A.; Nicholls, R. J.; Perkins, J. M.; Grieveson, E. M.; Theuwissen, K.; McComb, D. W.; Nellist, P. D.; Nicolosi, V. <jats:italic>Science</jats:italic><jats:bold>2011</jats:bold>, <jats:italic>331</jats:italic>, 568.</jats:p><jats:p>(6)Nicolosi, V.; Chhowalla, M.; Kanatzidis, M. G.; Strano, M. S.; Coleman, J. N. <jats:italic>Science</jats:italic><jats:bold>2013</jats:bold>, <jats:italic>340</jats:italic>.</jats:p><jats:p>(7)Toupin, M.; Brousse, T.; Bélanger, D. <jats:italic>Chemistry of Materials</jats:italic><jats:bold>2004</jats:bold>, <jats:italic>16</jats:italic>, 3184.</jats:p><jats:p>(8)Jiang, H.; Sun, T.; Li, C.; Ma, J. <jats:italic>Journal of Materials Chemistry</jats:italic><jats:bold>2012</jats:bold>, <jats:italic>22</jats:italic>, 2751.</jats:p>