| 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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Gressier, Marie
Université Toulouse III - Paul Sabatier
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022Fabrication of a pH microsensor for local pH measurement during chromium electrodeposition from a trivalent chromium-based electrolytecitations
- 2022Fabrication of a pH microsensor for local pH measurement during chromium electrodeposition from a trivalent chromium-based electrolytecitations
- 2021Influence of Hybrid Sol-Gel Crosslinker on Self-Healing Properties for Multifunctional Coatingscitations
- 2020Near-Infrared Luminescence from Visible-Light-Sensitized Ruthenium(II)‑Neodymium(III) Heterobimetallic Bridged Complexes Containing Alkoxy(silyl) Functional Groupscitations
- 2018Innovative Formulation Combining Al, Zr and Si Precursors to Obtain Anticorrosion Hybrid Sol-Gel Coatingcitations
- 2016New architectured hybrid sol-gel coatings for wear and corrosion protection of low-carbon steelcitations
- 2016Bifunctional magnetic luminescent particles based on iron oxide nanoparticles grafted with a europium silylated bypiridine tris(β-diketonate) complexcitations
- 2016Luminescent multifunctional hybrids obtained by grafting of ruthenium complexes on mesoporous silicacitations
- 2013Protection against corrosion of magnesium alloys with both conversion layer and sol–gel coatingcitations
- 2012Improvement of barrier properties of a hybrid sol-gel coating by incorporation of synthetic talc-like phyllosilicates for corrosion protection of a carbon steelcitations
- 2009High rate capability pure Sn-based nano-architectured electrode assembly for rechargeable lithium batteriescitations
- 2009High rate capability pure Sn-based nano-architectured electrode assembly for rechargeable lithium batteriescitations
- 2007Silica-Based Nanohybrids Containing Dipyridine, Urethan, or Urea Derivativescitations
Places of action
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article
Fabrication of a pH microsensor for local pH measurement during chromium electrodeposition from a trivalent chromium-based electrolyte
Abstract
In this work, the pH conditions during chromium electrodeposition are investigated using a home-made pH microsensor and scanning electrochemical microscopy (SECM). Few studies have focused on measuring local pH during metal electrodeposition and none has been conducted during chromium electrodeposition. The novelty of this work is the study of the local pH during chromium electrodeposition in very acidic (pH < 1) and concentrated media (>1 mol⋅L − 1). Along with several other determinants, pH is a key factor in achieving an even metallic deposit. pH buffers and complexing agents are often used for this purpose but in the vicinity of the electrode, at the electrode/electrolyte interface, strong variations are highly likely to occur. For this reason, a pH microelectrode has been developed to scan the pH gradient during the electrodeposition of chromium. This is based on an iridium oxide-modified microelectrode, since iridium oxide has been reported to be suitable for local pH sensing. The thermal treatment of iridium oxide (IrOx) has also been studied. The deposition of a Nafion layer on top of the oxide has also been shown to achieve good selectivity and good stability while maintaining a reasonable level of sensitivity. An optimized IrOx microelectrode was obtained and used as a SECM microelectrode to investigate the evolution of the pH at the electrode/electrolyte interface during electrodeposition. The results are promising and will enable us to further develop our understanding of chromium electrodeposition.