| 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
Correlation between microstructure and surface chemistry of carbon nanofibers grown using different adhesive layers
Abstract
<p>Carbon nanofibers (CNFs) have applications in a wide range of technological and scientific fields. The connections between their micro- and macrostructure and observed performance are, however, currently lacking. This hinders the realization of their full potential. In this paper, we correlate the microstructure of CNFs grown on two types of substrates: (1) Si + 20 nm Ti + 20 nm Ni, and (2) Si + 80 nm Cr + 20 nm Ni, to their surface chemistry. We use transmission electron microscopy (TEM), supported by energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, to describe the morphology and structure of CNFs as well as the underlying interfacial layers. Then, we study the similarities and differences in chemistry of these two types of CNFs using X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) and correlate them with the observed structural features of the fibers. Vertically aligned, tip-type fiber growth was observed on both substrates. TEM micrographs show that the CNFs grown on the Cr + Ni substrates have a slightly distorted herringbone-like structure, whereas fibers grown on the Ti + Ni substrates have relatively ill-defined structure with basal planes pointing outwards. Consequently, the latter possess a richer surface chemistry, which is apparent from the wider peaks and more spectral features observed during XAS and XPS measurements. This analysis provides us with some of the missing structure-chemistry connections, which can subsequently be expanded towards including correlations of these features with observed performance of the CNFs in different applications. Ultimately, this enables us to tailor features of the CNFs for specific target fields.</p>