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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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Yliniemi, Kirsi
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Recent developments of electrodeposition-redox replacement in metal recovery and functional materials: A reviewcitations
- 2022Electrochemical Growth of Ag/Zn Alloys from Zinc Process Solutions and Their Dealloying Behaviorcitations
- 2022Green and Controllable Preparation of Cu/Zn Alloys Using Combined Electrodeposition and Redox Replacementcitations
- 2022Targeted surface modification of Cu/Zn/Ag coatings and Ag/Cu particles based on sacrificial element selection by electrodeposition and redox replacementcitations
- 2021Performance-Based Selection of the Cathode Material for the Electrodeposition-Redox Replacement Process of Gold Recovery from Chloride Solutionscitations
- 2020Mechanism of selective gold extraction from multi-metal chloride solutions by electrodeposition-redox replacementcitations
- 2020Mechanism of selective gold extraction from multi-metal chloride solutions by electrodeposition-redox replacementcitations
- 2019Energy efficient copper electrowinning and direct deposition on carbon nanotube film from industrial wastewaterscitations
- 2018Structural distinction due to deposition method in ultrathin films of cellulose nanofibrescitations
- 2018From waste to valuable resource: Lignin as a sustainable anti-corrosion coatingcitations
- 2018A direct synthesis of platinum/nickel co-catalysts on titanium dioxide nanotube surface from hydrometallurgical-type process streamscitations
- 2018Time-Dependent Behavior of Cation Transport through Cellulose Acetate-Cationic Polyelectrolyte Membranescitations
- 2018Platinum recovery from Industrial Process Solutions by Electrodepo-sition-Redox Replacement
- 2008Different approaches for surface modifications : formation of inhibitive film on copper surfaces and surfaces functionalised with Ag nanoparticles ; Erilaisia lähestymistapoja pintojen muokkaukseen: suojaavan kerroksen muodostuminen kuparin pinnalle ja pintojen funktionalisointi Ag nanopartikkeleilla
- 2008Different Approaches for Surface Modifications: Formation of Inhibitive Film on Copper Surfaces and Surfaces Functionalised with Ag Nanoparticles
Places of action
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article
Electrochemical Growth of Ag/Zn Alloys from Zinc Process Solutions and Their Dealloying Behavior
Abstract
This study investigates the sustainable preparation of Ag/Zn alloys from a simulated zinc process solution (20 ppm Ag, 65 g/L Zn, and 10 g/L H<sub>2</sub>SO<sub>4</sub>) via electrodeposition-redox replacement (EDRR) and the electrochemical dealloying behavior of the Ag/Zn alloys. Results indicate that Ag/Zn deposits with diverse compositions and microstructures can be obtained at room temperature without any complexing agents, simply by varying EDRR parameters like deposition time,<br/>deposition potential, and redox replacement time. Two types of Ag/Zn intermetallics (Zn<sub>0.96</sub>Ag<sub>0.04</sub> and Ag<sub>0.76</sub>Zn0<sub>.24</sub>) were identified by the combination of X-ray diffraction (XRD) and anodic linear sweep voltammetry. Mass-transfer limitations have significant effects on the growth process, and a nucleation-growth mechanism from Ag/Zn particles into dendrites with increased EDRR cycles is introduced: with EDRR parameters favoring mass-transfer limitations (higher overpotentials, longer deposition times, and shorter redox replacement times), a more dendritic morphology of Ag/Zn alloys is achieved. The selective dissolution of Zn (i.e. dealloying) allowed the formation of silver-rich surfaces with an enhanced surface plasmon resonance behavior, which can be readily tuned by EDRR and dealloying parameters. These results highlight the significant potential of the EDRR-dealloying route to produce different types of Ag/Zn alloys and optically functional materials directly from<br/>base metal process solutions.