| 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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Quinson, Jonathan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Effect of solvothermal synthesis parameters on the crystallite size and atomic structure of cobalt iron oxide nanoparticlescitations
- 2024Monitoring the Morphological Changes of Skeleton-PtCo Electrocatalyst during PEMFC Start-Up/Shut-Downprobed by in situ WAXS and SAXScitations
- 2024Monitoring the Morphological Changes of Skeleton-PtCo Electrocatalyst during PEMFC Start-Up/Shut-Down probed by in situ WAXS and SAXS.citations
- 2024The AUREX cell:a versatile operando electrochemical cell for studying catalytic materials using X-ray diffraction, total scattering and X-ray absorption spectroscopy under working conditions
- 2024The AUREX cell : A versatile operando electrochemical cell for studying catalytic materials using X-ray diffraction, total scattering and X-ray absorption spectroscopy under working conditions
- 2023Chemical Insights into the Formation of Colloidal Iridium Nanoparticles from In Situ X-ray Total Scatteringcitations
- 2023Chemical Insights into the Formation of Colloidal Iridium Nanoparticles from In Situ X-ray Total Scattering:Influence of Precursors and Cations on the Reaction Pathwaycitations
- 2023Chemical Insights into the Formation of Colloidal Iridium Nanoparticles from In Situ X-ray Total Scattering:Influence of Precursors and Cations on the Reaction Pathwaycitations
- 2022Breaking with the Principles of Coreduction to Form Stoichiometric Intermetallic PdCu Nanoparticlescitations
- 2022Nanocomposite Concept for Electrochemical In Situ Preparation of Pt–Au Alloy Nanoparticles for Formic Acid Oxidationcitations
- 2022Surfactant-free syntheses and pair distribution function analysis of osmium nanoparticlescitations
- 2022Nanocomposite Concept for Electrochemical in Situ Preparation of Pt-Au Alloy Nanoparticles for Formic Acid Oxidationcitations
- 2021Operando SAXS study of a Pt/C fuel cell catalyst with an X-ray laboratory sourcecitations
- 2021The Gas Diffusion Electrode Setup as Straightforward Testing Device for Proton Exchange Membrane Water Electrolyzer Catalysts
- 2021Elucidating Pt-Based Nanocomposite Catalysts for the Oxygen Reduction Reaction in Rotating Disk Electrode and Gas Diffusion Electrode Measurementscitations
- 2021Bifunctional Pt-IrO2Catalysts for the Oxygen Evolution and Oxygen Reduction Reactionscitations
- 2020Janus structured multiwalled carbon nanotube forests for simple asymmetric surface functionalization and patterning at the nanoscalecitations
- 2020Solvent-dependent growth and stabilization mechanisms of surfactant-free colloidal Pt nanoparticlescitations
- 2020Solvent-dependent growth and stabilization mechanisms of surfactant-free colloidal Pt nanoparticlescitations
- 2020The Dissolution Dilemma for Low Pt Loading Polymer Electrolyte Membrane Fuel Cell Catalystscitations
- 2018On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Methodcitations
- 2018Solutions for catalysis: A surfactant-free synthesis of precious metal nanoparticle colloids in mono-alcohols for catalysts with enhanced performances
Places of action
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article
Janus structured multiwalled carbon nanotube forests for simple asymmetric surface functionalization and patterning at the nanoscale
Abstract
The asymmetric functionalization of nanomaterials is desired to develop nanostructures with increasingly exotic properties. Nevertheless, it remains a general challenge and a difficult task. Janus structured multiwalled carbon nanotubes with intratubular junctions between undoped and nitrogen-doped sections have been exclusively considered to date for electronic applications in studies typically requiring only few individual nanotubes. Such structures are here shown to be suitable scaffolds to simply achieve a spontaneous, asymmetric and localized functionalization and patterning at the nanoscale. First, a method to produce large quantities (>100 mg per experiment) and long (>100 μm) vertically aligned multiwalled carbon nanotube forests by a hybrid aerosol assisted and traditional chemical vapor deposition is presented. Scanning and transmission electron microscopy, electron energy loss spectroscopy and Raman spectroscopy characterizations confirm a continuous intratubular transition between nitrogen-doped and undoped sections. Second, and for the first time, the described Janus structures are shown to be suitable scaffolds to achieve an asymmetric, spontaneous and yet spatially controlled reactivity along nanotubes. This is illustrated with the examples of asymmetric oxidation properties and asymmetric immobilization of platinum nanoparticles. Asymmetric functionalization is simply achieved by carefully controlling and exploiting the different surface properties along the Janus structured carbon nanotubes.