| 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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Gianoncelli, Alessandra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2020The role of chromium in the corrosion performance of cobalt- and cobalt-nickel based hardmetal binders: A study centred on X-ray absorption microspectroscopycitations
- 2018Monitoring dynamic electrochemical processes with in situ ptychographycitations
- 2018Graphene Oxide/Iron Oxide Nanocomposites for Water Remediationcitations
- 2017Soft X-ray ptychography as a tool for in operando morphochemical studies of electrodeposition processes with nanometric lateral resolutioncitations
- 2016Shedding light on electrodeposition dynamics tracked in situ via soft X-ray coherent diffraction imagingcitations
- 2015High-lateral resolution X-ray fluorescence microspectroscopy and dynamic mathematical modelling as tools for the study of electrodeposited electrocatalystscitations
- 2013Metal fractionation in soils and assessment of environmental contamination in Vallecamonica, Italycitations
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article
Soft X-ray ptychography as a tool for in operando morphochemical studies of electrodeposition processes with nanometric lateral resolution
Abstract
Highlights• Pulse-plating of Mn-oxide/polypyrrole nanocomposite studied in situ by ptychography.• Electrocrystallization followed in operando by dynamic coherent diffractive imaging.• Morphology and chemical state evolutions monitored in situ during electrodeposition.• Spectroscopic ptychography reveals valence distribution with nanometric resolution.• Local magnitude and phase spectra extracted from recostructued ptychographic images.AbstractCrucial for the advancement of electrochemical materials science is understanding the lateral variations in the elemental and chemical state of constituents induced by electrochemical reactions at nanoscales. This requires in situ studies to provide observables that contribute to both modeling beyond the phenomenological level and transducing exactly the functionally relevant quantities A range of X-ray coherent diffraction imaging (CDI) approaches has recently been proposed for imaging beyond the diffraction limit with potentially dramatic improvements of time resolution with chemical sensitivity. In this paper we report a selection of ptychography results obtained in situ after successive steps of electrochemically driven growth, complemented with absorption and phase spectroscopy at high lateral resolution. We demonstrate the onset of morphological instability feature formation and correlate the chemical state of Mn with local growth rate controlled by the current density distribution resulting from morphological evolution.