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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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Gloter, Alexandre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Polar discontinuity governs surface segregation and interface termination: A case study of LaInO$_3$/BaSnO$_3$citations
- 2024Origin of the Surface Magnetic Dead Layer in Rare‐Earth Titanates
- 2024Unraveling P‐Type and N‐Type Interfaces in Superconducting Infinite‐Layer Nickelate Thin Filmscitations
- 2024Polar discontinuity governs surface segregation and interface termination: A case study of LaIn O3/ BaSn O3
- 2024Toward Reliable Synthesis of Superconducting Infinite Layer Nickelate Thin Films by Topochemical Reductioncitations
- 2024Toward Reliable Synthesis of Superconducting Infinite Layer Nickelate Thin Films by Topochemical Reductioncitations
- 2024Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reductioncitations
- 2023Plasmonic Properties of SrVO Bulk and Nanostructurescitations
- 2023Mapping the complex evolution of ferroelastic/ferroelectric domain patterns in epitaxially strained PbTiO3 heterostructurescitations
- 2023Strontium-driven physiological to pathological transition of bone-like architecture: A dose-dependent investigationcitations
- 2023Synthesis of infinite-layer nickelates and influence of the capping-layer on magnetotransportcitations
- 2022Strain tuning of Néel temperature in YCrO 3 epitaxial thin filmscitations
- 2021Depth profile reconstruction of YCrO3 / CaMnO3 superlattices by near total reflection HAXPEScitations
- 2021Surface and bulk ferroelectric phase transition in super-tetragonal BiFeO 3 thin filmscitations
- 2020Evolution of structural and magnetic properties of multifunctional bismuth iron garnets upon Ca and Y dopingcitations
- 2020Role of point and line defects on the electronic structure of LaAlO3/SrTiO3 interfacescitations
- 2019Room Temperature Blocked Magnetic Nanoparticles Based on Ferrite Promoted by a Three-Step Thermal Decomposition Processcitations
- 2017In-situ determination of the kinetics and mechanisms of nickel adsorption by nanocrystalline vernaditecitations
- 2013Direct Evidence of Fe2+-Fe3+ Charge Ordering in the ferrimagnetic Hematite-Ilmenite Fe1.35Ti0.65O3 -d Thin Filmscitations
- 2011Nanoscale chemical and structural study of Co-based FEBID structures by STEM-EELS and HRTEM
- 2011Nanoscale chemical and structural study of Co- based FEBID structures by STEM-EELS and HRTEMcitations
- 2010Synthesis and Cathodoluminescence of Undoped and Cr^3^+-Doped Sodium Titanate Nanotubes and Nanoribbonscitations
- 2010Synthesis and cathodoluminescence of undoped and Cr^(3+)-doped Sodium Titanate nanotubes and nanoribbonscitations
- 2009Insights into the mechanism of the gas-phase purification of HiPco SWNTs through a comprehensive multi-technique studycitations
- 2009Segregation tendency in layered aluminum-substituted lithium nickel oxidescitations
- 2008Geometric and electronic structure of alpha-oxygen sites in Mn-ZSM-5 zeolitescitations
- 2008Geometric and electronic structure of alpha-oxygen sites in Mn-ZSM-5 zeolites
Places of action
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article
In-situ determination of the kinetics and mechanisms of nickel adsorption by nanocrystalline vernadite
Abstract
International audience ; In-situ kinetics and mechanisms of Ni2+ uptake by synthetic vernadite were determined at pH 5.8 and I = 0.1 M NaCl using wet chemistry, atomic-resolution scanning transmission electron microscopy coupled with electron energy loss spectroscopy (STEM-EELS) and synchrotron high-energy X-ray scattering (HEXS) in both the Bragg-rod and pair distribution function formalisms. The structural formula of the initial solids was (Mn0.053+Na0.23+)-Mn-Tc(H2O)(0.69)H+ (0.06) [(Mn4+ (0.86)Mn(0.04)(3+)vac(0.1))O-2), where species under brackets form the layer having "vac" layer vacancies, and where other species are present in the interlayer, with TC standing for "triple corner sharing" configuration. According to HEXS and STEM-EELS, adsorbed Ni2+ adopted mainly a TC configuration, and had a Debye-Waller factor about four times higher than layer Mn. Steady-state was reached after similar to 2.2 h of contact time, and the final structural formula of the solid was (Ni0.122+Mn3+)-Ni-Tc-Mn-Tc Na-0.05(+) 0.12H2O0.36H0.01+(Mn(0.87)(4+)vac(0.13))O-2]. Atomic-scale imaging of the solids also evinced the presence of minor Ni adsorbed at the crystal edge. The retention coefficient R-D = 10(3.76 +/-) (0.06) L kg(-1), computed from PDF data modelling and solution chemistry results, was in agreement with those available in the literature.