| 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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Sainio, Jani
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzercitations
- 2024Enhancing electrocatalytic activity in metallic thin films through surface segregation of carboncitations
- 2024Ni Drastically Modifies the Microstructure and Electrochemistry of Thin Ti and Cr Layerscitations
- 2024Effect of etchant gases on the structure and properties of carbon nanofiberscitations
- 2023Robust method for uniform coating of carbon nanotubes with V2O5 for next-generation transparent electrodes and Li-ion batteriescitations
- 2023Correlation between microstructure and surface chemistry of carbon nanofibers grown using different adhesive layerscitations
- 2023Electrochemical reduction of carbon dioxide to formate in a flow cell on CuSx grown by atomic layer depositioncitations
- 2023Enhancing electrocatalytic activity in metallic thin films through surface segregation of carboncitations
- 2023Robust method for uniform coating of carbon nanotubes with V 2 O 5 for next-generation transparent electrodes and Li-ion batteriescitations
- 2020Mesoporous Single-Atom-Doped Graphene–Carbon Nanotube Hybrid: Synthesis and Tunable Electrocatalytic Activity for Oxygen Evolution and Reduction Reactionscitations
- 2018Experimental and Computational Investigation of Hydrogen Evolution Reaction Mechanism on Nitrogen Functionalized Carbon Nanotubescitations
- 2016Maghemite nanoparticles decorated on carbon nanotubes as efficient electrocatalysts for the oxygen evolution reactioncitations
- 2014Insights into chirality distributions of single-walled carbon nanotubes grown on different CoxMg1-xO solid solutionscitations
- 2014Insights into chirality distributions of single-walled carbon nanotubes grown on different Co x Mg1- x O solid solutionscitations
- 2013Structure and local variations of the graphene moiré on Ir(111)
- 2011Low temperature growth of SWNTs on a nickel catalyst by thermal chemical vapor depositioncitations
- 2005Electron spectroscopy studies of vacuum deposited chromium and cobalt layers
Places of action
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article
Enhancing electrocatalytic activity in metallic thin films through surface segregation of carbon
Abstract
Thin layers of commonly used adhesion metals i.e., Cr and Ti were annealed to investigate and estimate their impact on the electrochemical properties of the carbon nanomaterials grown on top of them. The microstructure, surface chemistry, and electrochemical activities of these materials were evaluated and compared with those of as-deposited thin films. The results from X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, grazing incidence X-ray diffraction (GIXRD), time-of-flight elastic recoil detection analysis (TOF-ERDA), and conductive atomic force microscopy (C-AFM) indicated the formation of a catalytic graphite layer on Cr following annealing, while no such layer was formed on Ti. This is attributed to the formation of the Cr2O3 layer on annealed Cr, which acts as a barrier to carbon diffusion into the underlying Cr. Conversely, Ti exhibits a high solubility for both carbon and oxygen, preventing the formation of the graphite layer. Cyclic voltammetry results showed that annealed Cr electrodes are electrochemically active towards both dopamine (DA) and ascorbic acid (AA) while no electrochemical activity is exhibited by annealed Ti. Quantum chemical calculations suggested that the presence of carbon as graphene or an amorphous form is critical for the oxidation reaction of probes. These results are significant for comprehending how the distinct solubilities of typical interstitial solutes influence the microstructure of adhesion metal layers and consequently yield diverse electrochemical properties.