| 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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Zbořil, Radek
Technical University of Ostrava
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Unveiling the potential of covalent organic frameworks for energy storage: Developments, challenges, and future prospectscitations
- 2023TiO2 nanotube arrays decorated with Ir nanoparticles for enhanced hydrogen evolution electrocatalysis
- 2022Intermetallic Copper‐Based Electride Catalyst with High Activity for C–H Oxidation and Cycloaddition of CO<sub>2</sub> into Epoxidescitations
- 2022Band gap and Morphology Engineering of Hematite Nanoflakes from an Ex Situ Sn Doping for Enhanced Photoelectrochemical Water Splittingcitations
- 2022Graphene-Based Metal-Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologiescitations
- 2021Rational Design of Graphene Derivatives for Electrochemical Reduction of Nitrogen to Ammoniacitations
- 2021Covalent Graphene-MOF Hybrids for High-Performance Asymmetric Supercapacitorscitations
- 2021Emerging MXene@Metal-Organic Framework Hybridscitations
- 2020Controlling phase fraction and crystal orientation via thermal oxidation of iron foils for enhanced photoelectrochemical performancecitations
- 2020Metal Halide Perovskite@Metal-Organic Framework Hybridscitations
- 2020High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticlescitations
- 2019Crystal Structure‐ and Morphology‐Driven Electrochemistry of Iron Oxide Nanoparticles in Hydrogen Peroxide Detectioncitations
- 2019Photocatalysis with Reduced TiO2: From Black TiO2 to Cocatalyst-Free Hydrogen Productioncitations
- 2016Advanced Sensing of Antibiotics with Magnetic Gold Nanocomposite: Electrochemical Detection of Chloramphenicolcitations
- 2015Direct evidence of Fe(v) and Fe(iv) intermediates during reduction of Fe(vi) to Fe(iii): a nuclear forward scattering of synchrotron radiation approachcitations
- 2013Thermal decomposition of [Co(en)3][Fe(CN)6]∙ 2H2O: Topotactic dehydration process, valence and spin exchange mechanism elucidation
- 2006Phase composition of steel–enamel interfaces: Effects of chemical pre-treatmentcitations
Places of action
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article
Covalent Graphene-MOF Hybrids for High-Performance Asymmetric Supercapacitors
Abstract
<p>In this work, the covalent attachment of an amine functionalized metal-organic framework (UiO-66-NH<sub>2</sub> = Zr<sub>6</sub>O<sub>4</sub>(OH)<sub>4</sub>(bdc-NH<sub>2</sub>)<sub>6</sub>; bdc-NH<sub>2</sub> = 2-amino-1,4-benzenedicarboxylate) (UiO-Universitetet i Oslo) to the basal-plane of carboxylate functionalized graphene (graphene acid = GA) via amide bonds is reported. The resultant GA@UiO-66-NH<sub>2</sub> hybrid displayed a large specific surface area, hierarchical pores and an interconnected conductive network. The electrochemical characterizations demonstrated that the hybrid GA@UiO-66-NH<sub>2</sub> acts as an effective charge storing material with a capacitance of up to 651 F g<sup>−1</sup>, significantly higher than traditional graphene-based materials. The results suggest that the amide linkage plays a key role in the formation of a π-conjugated structure, which facilitates charge transfer and consequently offers good capacitance and cycling stability. Furthermore, to realize the practical feasibility, an asymmetric supercapacitor using a GA@UiO-66-NH<sub>2</sub> positive electrode with Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> MXene as the opposing electrode has been constructed. The cell is able to deliver a power density of up to 16 kW kg<sup>−1</sup> and an energy density of up to 73 Wh kg<sup>−1</sup>, which are comparable to several commercial devices such as Pb-acid and Ni/MH batteries. Under an intermediate level of loading, the device retained 88% of its initial capacitance after 10 000 cycles.</p>