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Mercadier B, Coles SW, Duttine M, Legein C, Body M, Borkiewicz OJ, Lebedev O, Morgan BJ, Masquelier C, Dambournet D. Dynamic Lone Pairs and Fluoride-Ion Disorder in Cubic-BaSnF 4. J Am Chem Soc 2023; 145:23739-23754. [PMID: 37844155 PMCID: PMC10623577 DOI: 10.1021/jacs.3c08232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Indexed: 10/18/2023]
Abstract
Introducing compositional or structural disorder within crystalline solid electrolytes is a common strategy for increasing their ionic conductivity. (M,Sn)F2 fluorites have previously been proposed to exhibit two forms of disorder within their cationic host frameworks: occupational disorder from randomly distributed M and Sn cations and orientational disorder from Sn(II) stereoactive lone pairs. Here, we characterize the structure and fluoride-ion dynamics of cubic BaSnF4, using a combination of experimental and computational techniques. Rietveld refinement of the X-ray diffraction (XRD) data confirms an average fluorite structure with {Ba,Sn} cation disorder, and the 119Sn Mössbauer spectrum demonstrates the presence of stereoactive Sn(II) lone pairs. X-ray total-scattering PDF analysis and ab initio molecular dynamics simulations reveal a complex local structure with a high degree of intrinsic fluoride-ion disorder, where 1/3 of fluoride ions occupy octahedral "interstitial" sites: this fluoride-ion disorder is a consequence of repulsion between Sn lone pairs and fluoride ions that destabilizes Sn-coordinated tetrahedral fluoride-ion sites. Variable-temperature 19F NMR experiments and analysis of our molecular dynamics simulations reveal highly inhomogeneous fluoride-ion dynamics, with fluoride ions in Sn-rich local environments significantly more mobile than those in Ba-rich environments. Our simulations also reveal dynamical reorientation of the Sn lone pairs that is biased by the local cation configuration and coupled to the local fluoride-ion dynamics. We end by discussing the effect of host-framework disorder on long-range diffusion pathways in cubic BaSnF4.
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Affiliation(s)
- Briséïs Mercadier
- Réseau
sur le Stockage Electrochimique de l’Energie, RS2E, FR CNRS
3459, 80039 Amiens Cedex, France
- Sorbonne
Université, CNRS, Physicochimie des Electrolytes et Nanosystèmes
Interfaciaux, UMR CNRS 8234, 75005 Paris, France
- Laboratoire
de Réactivité et de Chimie du Solides, UMR CNRS 7314, 80039 Amiens Cedex, France
| | - Samuel W. Coles
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Quad
One, Harwell Science and Innovation Campus, The Faraday Institution, Didcot OX11 0RA, United Kingdom
| | - Mathieu Duttine
- Institut
de Chimie de la Matière Condensée de Bordeaux, UMR CNRS
5026, 33608 Pessac, France
| | - Christophe Legein
- Institut
des Molécules et Matériaux du Mans, UMR CNRS 6283, Le
Mans Université, 72085 Le Mans Cedex 9, France
| | - Monique Body
- Institut
des Molécules et Matériaux du Mans, UMR CNRS 6283, Le
Mans Université, 72085 Le Mans Cedex 9, France
| | - Olaf J. Borkiewicz
- X-ray
Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Oleg Lebedev
- Laboratoire
de Cristallographie et Sciences des Matériaux, CRISMAT, 14000 Caen, France
| | - Benjamin J. Morgan
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Quad
One, Harwell Science and Innovation Campus, The Faraday Institution, Didcot OX11 0RA, United Kingdom
| | - Christian Masquelier
- Réseau
sur le Stockage Electrochimique de l’Energie, RS2E, FR CNRS
3459, 80039 Amiens Cedex, France
- Laboratoire
de Réactivité et de Chimie du Solides, UMR CNRS 7314, 80039 Amiens Cedex, France
| | - Damien Dambournet
- Réseau
sur le Stockage Electrochimique de l’Energie, RS2E, FR CNRS
3459, 80039 Amiens Cedex, France
- Sorbonne
Université, CNRS, Physicochimie des Electrolytes et Nanosystèmes
Interfaciaux, UMR CNRS 8234, 75005 Paris, France
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Gamon J, Bassat JM, Villesuzanne A, Duttine M, Batuk M, Vandemeulebroucke D, Hadermann J, Alassani F, Weill F, Durand E, Demourgues A. Impact of Anionic Ordering on the Iron Site Distribution and Valence States in Oxyfluoride Sr 2FeO 3+xF 1-x ( x = 0.08, 0.2) with a Layered Perovskite Network. Inorg Chem 2023. [PMID: 37382143 DOI: 10.1021/acs.inorgchem.3c01455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Sr2FeO3F, an oxyfluoride compound with an n = 1 Ruddlesden-Popper structure, was identified as a potential interesting mixed ionic and electronic conductor (MIEC). The phase can be synthesized under a range of different pO2 atmospheres, leading to various degrees of fluorine for oxygen substitution and Fe4+ content. A structural investigation and thorough comparison of both argon- and air-synthesized compounds were performed by combining high-resolution X-ray and electron diffraction, high-resolution scanning transmission electron microscopy, Mössbauer spectroscopy, and DFT calculations. While the argon-synthesized phase shows a well-behaved O/F ordered structure, this study revealed that oxidation leads to averaged large-scale anionic disorder on the apical site. In the more oxidized Sr2FeO3.2F0.8 oxyfluoride, containing 20% of Fe4+, two different Fe positions can be identified with a 32%/68% occupancy (P4/nmm space group). This originates due to the presence of antiphase boundaries between ordered domains within the grains. Relations between site distortion and valence states as well as stability of apical anionic sites (O vs F) are discussed. This study paves the way for further studies on both ionic and electronic transport properties of Sr2FeO3.2F0.8 and its use in MIEC-based devices, such as solid oxide fuel cells.
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Affiliation(s)
- Jacinthe Gamon
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Jean-Marc Bassat
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | | | - Mathieu Duttine
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Maria Batuk
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | | | - Joke Hadermann
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Fouad Alassani
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - François Weill
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Etienne Durand
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Alain Demourgues
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
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Peigney E, Poulon-Quintin A, Cavarroc M, Aubert G, Duttine M, Sarroste CL, Aymonier C. Investigation of the interaction between adsorbed water and various morphologies of boehmite nanoparticles prepared by continuous supercritical hydrothermal synthesis. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Mjejri I, Duttine M, Buffière S, Labrugère-Sarroste C, Rougier A. From the Irreversible Transformation of VO 2 to V 2O 5 Electrochromic Films. Inorg Chem 2022; 61:18496-18503. [DOI: 10.1021/acs.inorgchem.2c02722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Issam Mjejri
- Université de Bordeaux, CNRS, Bx INP, ICMCB, UMR 5026, F-33600Pessac, France
| | - Mathieu Duttine
- Université de Bordeaux, CNRS, Bx INP, ICMCB, UMR 5026, F-33600Pessac, France
| | - Sonia Buffière
- Université de Bordeaux, CNRS, Bx INP, ICMCB, UMR 5026, F-33600Pessac, France
| | | | - Aline Rougier
- Université de Bordeaux, CNRS, Bx INP, ICMCB, UMR 5026, F-33600Pessac, France
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Bazin T, Duttine M, Julien I, Champion E, Demourgues A, Gaudon M. Exotic Fe II/Fe III Local Environments in the Hexagonal Channels of Hydroxyapatite. Inorg Chem 2022; 61:14377-14388. [PMID: 36044741 DOI: 10.1021/acs.inorgchem.2c02212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this fundamental solid-state chemistry study, two sample series were investigated in depth: iron(III)-doped hydroxyapatite (HA) compounds obtained from a co-sintering process of hematite and pure HA under air and iron(III)-doped HA compounds obtained from a co-sintering process from iron(II) acetate and pure HA under an argon atmosphere. X-ray diffraction, UV-visible, Fourier transform infrared, 1H and 31P NMR, electron paramagnetic resonance (EPR,) and Mössbauer spectroscopy methods were coupled to unravel the Fe valence states, the interactions with other anionic species (OH- and PO43-), and finally the complex local environments in hexagonal channels in both the series. In particular, we highlighted the associated mechanism to ensure electroneutrality with a focus on deprotonation versus calcium substitution. By diverging mechanisms, Fe3+ and Fe2+ ions were found to be located in different coordinated sites: 4(+1) coordinated site for Fe3+ and 2(+3) coordinated site for Fe2+ and clearly associated with very different Mössbauer and EPR signatures as various absorption bands (leading to different sample colors).
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Affiliation(s)
- Tiphaine Bazin
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.,Université de Limoges, IRCER─Centre Européen de la Céramique, UMR CNRS 7315, F-87068 Limoges, France
| | - Mathieu Duttine
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Isabelle Julien
- Université de Limoges, IRCER─Centre Européen de la Céramique, UMR CNRS 7315, F-87068 Limoges, France
| | - Eric Champion
- Université de Limoges, IRCER─Centre Européen de la Céramique, UMR CNRS 7315, F-87068 Limoges, France
| | - Alain Demourgues
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Manuel Gaudon
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
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Hof F, Poggini L, Otero E, Gobaut B, Gonidec M, Duttine M, Rosa P, Sandre O, Pénicaud A. Magnetic Ordering in Ultrasmall Potassium Ferrite Nanoparticles Grown on Graphene Nanoflakes. ACS Appl Mater Interfaces 2022; 14:3130-3142. [PMID: 34981916 DOI: 10.1021/acsami.1c19353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Magnetic nanoparticles are central to the development of efficient hyperthermia treatments, magnetic drug carriers, and multimodal contrast agents. While the magnetic properties of small crystalline iron oxide nanoparticles are well understood, the superparamagnetic size limit constitutes a significant barrier for further size reduction. Iron (oxy)hydroxide phases, albeit very common in the natural world, are far less studied, generally due to their poor crystallinity. Templating ultrasmall nanoparticles on substrates such as graphene is a promising method to prevent aggregation, typically an issue for both material characterization and applications. We generate ultrasmall nanoparticles, directly on the carbon framework by the reaction of a graphenide potassium solution, charged graphene flakes, with iron(II) salts. After mild water oxidation, the obtained composite material consists of ultrasmall potassium ferrite nanoparticles bound to the graphene nanoflakes. Magnetic properties as evidenced by magnetometry and X-ray magnetic circular dichroism, with open magnetic hysteresis loops near room temperature, are widely different from classical ultrasmall superparamagnetic iron oxide nanoparticles. The large value obtained for the effective magnetic anisotropy energy density Keff accounts for the presence of magnetic ordering at rather high temperatures. The synthesis of ultrasmall potassium ferrite nanoparticles under such mild conditions is remarkable given the harsh conditions used for the classical syntheses of bulk potassium ferrites. Moreover, the potassium incorporation in the crystal lattice occurs in the presence of potassium cations under mild conditions. A transfer of this method to related reactions would be of great interest, which underlines the synthetic value of this study. These findings also give another view on the previously reported electrocatalytic properties of these nanocomposite materials, especially for the sought-after oxygen reduction/evolution reaction. Finally, their longitudinal and transverse proton NMR relaxivities when dispersed in water were assessed at 37 °C under a magnetic field of 1.41 T, allowing potential applications in biological imaging.
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Affiliation(s)
- Ferdinand Hof
- University of Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 33600 Pessac, France
| | - Lorenzo Poggini
- University of Bordeaux, CNRS, Bordeaux-INP, ICMCB, UMR 5026, F-33600 Pessac, Cedex, France
| | - Edwige Otero
- Synchrotron SOLEIL, L'Orme des Merisiers Saint Aubin, BP 48, F-91192 Gif sur Yvette, France
| | - Benoît Gobaut
- Synchrotron SOLEIL, L'Orme des Merisiers Saint Aubin, BP 48, F-91192 Gif sur Yvette, France
| | - Mathieu Gonidec
- University of Bordeaux, CNRS, Bordeaux-INP, ICMCB, UMR 5026, F-33600 Pessac, Cedex, France
| | - Mathieu Duttine
- University of Bordeaux, CNRS, Bordeaux-INP, ICMCB, UMR 5026, F-33600 Pessac, Cedex, France
| | - Patrick Rosa
- University of Bordeaux, CNRS, Bordeaux-INP, ICMCB, UMR 5026, F-33600 Pessac, Cedex, France
| | - Olivier Sandre
- University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR-5629, F-33600 Pessac, France
| | - Alain Pénicaud
- University of Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 33600 Pessac, France
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Camacho PS, Wernert R, Duttine M, Wattiaux A, Rudola A, Balaya P, Fauth F, Berthelot R, Monconduit L, Carlier D, Croguennec L. Impact of Synthesis Conditions in Na-Rich Prussian Blue Analogues. ACS Appl Mater Interfaces 2021; 13:42682-42692. [PMID: 34478252 DOI: 10.1021/acsami.1c09378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sodium-rich iron hexacyanoferrates were prepared by coprecipitation, hydrothermal route, and under reflux, with or without dehydration. They were obtained with different structures described in cubic, orthorhombic, or rhombohedral symmetry, with variable compositions in sodium, water, and cationic vacancies and with a variety of morphologies. This series of sodium-rich Prussian blue analogues allowed addressing the relationship between synthesis conditions, composition, structure, morphology, and electrochemical properties in Na-ion batteries. A new orthorhombic phase with the Na1.8Fe2(CN)6·0.7H2O composition synthesized by an hydrothermal route at 140 °C is reported for the first time, whereas a phase of Na2Fe2(CN)6·2H2O composition obtained under reflux, previously described with a monoclinic structure, shows in fact a rhombohedral structure.
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Affiliation(s)
- Paula Sanz Camacho
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
| | - Romain Wernert
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
| | - Mathieu Duttine
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
| | - Alain Wattiaux
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
| | - Ashish Rudola
- Department of Mechanical Engineering, National University of Singapore, 117576 Singapore, Singapore
- Department of Material Science and Engineering, National University of Singapore, 117575 Singapore, Singapore
| | - Palani Balaya
- Department of Mechanical Engineering, National University of Singapore, 117576 Singapore, Singapore
| | - François Fauth
- CELLS-ALBA Synchrotron, Cerdanyola del Vallès, E-08290 Barcelona, Spain
| | - Romain Berthelot
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
| | - Laure Monconduit
- ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104, F-80039 Amiens Cedex 1, France
| | - Dany Carlier
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104, F-80039 Amiens Cedex 1, France
| | - Laurence Croguennec
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33600 Pessac, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104, F-80039 Amiens Cedex 1, France
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Bonnet S, Prévot G, Mornet S, Jacobin-Valat MJ, Mousli Y, Hemadou A, Duttine M, Trotier A, Sanchez S, Duonor-Cérutti M, Crauste-Manciet S, Clofent-Sanchez G. A Nano-Emulsion Platform Functionalized with a Fully Human scFv-Fc Antibody for Atheroma Targeting: Towards a Theranostic Approach to Atherosclerosis. Int J Mol Sci 2021; 22:ijms22105188. [PMID: 34068875 PMCID: PMC8153629 DOI: 10.3390/ijms22105188] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is at the onset of the cardiovascular diseases that are among the leading causes of death worldwide. Currently, high-risk plaques, also called vulnerable atheromatous plaques, remain often undiagnosed until the occurrence of severe complications, such as stroke or myocardial infarction. Molecular imaging agents that target high-risk atheromatous lesions could greatly improve the diagnosis of atherosclerosis by identifying sites of high disease activity. Moreover, a "theranostic approach" that combines molecular imaging agents (for diagnosis) and therapeutic molecules would be of great value for the local management of atheromatous plaques. The aim of this study was to develop and characterize an innovative theranostic tool for atherosclerosis. We engineered oil-in-water nano-emulsions (NEs) loaded with superparamagnetic iron oxide (SPIO) nanoparticles for magnetic resonance imaging (MRI) purposes. Dynamic MRI showed that NE-SPIO nanoparticles decorated with a polyethylene glycol (PEG) layer reduced their liver uptake and extended their half-life. Next, the NE-SPIO-PEG formulation was functionalized with a fully human scFv-Fc antibody (P3) recognizing galectin 3, an atherosclerosis biomarker. The P3-functionalized formulation targeted atheromatous plaques, as demonstrated in an immunohistochemistry analyses of mouse aorta and human artery sections and in an Apoe-/- mouse model of atherosclerosis. Moreover, the formulation was loaded with SPIO nanoparticles and/or alpha-tocopherol to be used as a theranostic tool for atherosclerosis imaging (SPIO) and for delivery of drugs that reduce oxidation (here, alpha-tocopherol) in atheromatous plaques. This study paves the way to non-invasive targeted imaging of atherosclerosis and synergistic therapeutic applications.
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Affiliation(s)
- Samuel Bonnet
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
- Institut de Chimie de la Matière Condensée, CNRS UMR 5026, Université de Bordeaux, Bordeaux INP, ICMCB, 33600 Pessac, France; (S.M.); (M.D.)
- Correspondence:
| | - Geoffrey Prévot
- ARNA, ARN, Régulations Naturelle et Artificielle, ChemBioPharm, INSERM U1212, CNRS UMR 5320, Université de Bordeaux, 33076 Bordeaux, France; (G.P.); (Y.M.); (S.C.-M.)
| | - Stéphane Mornet
- Institut de Chimie de la Matière Condensée, CNRS UMR 5026, Université de Bordeaux, Bordeaux INP, ICMCB, 33600 Pessac, France; (S.M.); (M.D.)
| | - Marie-Josée Jacobin-Valat
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
| | - Yannick Mousli
- ARNA, ARN, Régulations Naturelle et Artificielle, ChemBioPharm, INSERM U1212, CNRS UMR 5320, Université de Bordeaux, 33076 Bordeaux, France; (G.P.); (Y.M.); (S.C.-M.)
| | - Audrey Hemadou
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
| | - Mathieu Duttine
- Institut de Chimie de la Matière Condensée, CNRS UMR 5026, Université de Bordeaux, Bordeaux INP, ICMCB, 33600 Pessac, France; (S.M.); (M.D.)
| | - Aurélien Trotier
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
| | - Stéphane Sanchez
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
| | | | - Sylvie Crauste-Manciet
- ARNA, ARN, Régulations Naturelle et Artificielle, ChemBioPharm, INSERM U1212, CNRS UMR 5320, Université de Bordeaux, 33076 Bordeaux, France; (G.P.); (Y.M.); (S.C.-M.)
| | - Gisèle Clofent-Sanchez
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR 5536, Université de Bordeaux, CRMSB, 33076 Bordeaux, France; (M.-J.J.-V.); (A.H.); (A.T.); (S.S.); (G.C.-S.)
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9
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Andron I, Marichez L, Jubera V, Labrugère C, Duttine M, Frayret C, Gaudon M. Photochromic Behavior of ZnO/MoO 3 Interfaces. ACS Appl Mater Interfaces 2020; 12:46972-46980. [PMID: 32976715 DOI: 10.1021/acsami.0c13335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
ZnO/MoO3 powder mixture exhibits a huge photochromic effect in comparison with the corresponding single oxides. The coloring efficiency of such combined material after UV-light irradiation was studied in terms of intensity, kinetics, and ZnO/MoO3 powder ratio. Additionally, the incidence of the pretreatment step of the ZnO and MoO3 powders under different atmospheres (air, Ar or Ar/H2 flow) was analyzed. The huge photochromic effect discovered herein was interpreted as the creation of "self-closed Schottky barrier" at the solid/solid interfaces between the two oxides, associated with the full redox reaction which can be pictured by the equation ZnO1-ε + MoO3 → ZnO + MoO3-ε. Remarkable optical contrast between virgin and color states as well as self-bleaching in dark allowing the reversibility of the photochromism is emphasized. From this first discovery, deeper characterization of the self-bleaching process shows that the photochromic mechanism is complex with a bleaching efficiency (possibility to come back to the virgin material optical properties without any deterioration) and a bleaching kinetics, which are both dependent on the coloring irradiation time. This demonstrates that the oxygen exchange through the Schottky interface proceeds in at least two convoluted steps: an anionic surface exchange allowing a reversibility of the redox reaction followed by bulk diffusion of the exchanged anions which are then definitively trapped. An emergent "negative photochromism effect" (i.e., photochromism associated with a self-bleaching instead of a darkening under irradiation) is observed after a long irradiation time.
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Affiliation(s)
- Ines Andron
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
- Laboratoire de Réactivité et de Chimie des Solides (LRCS), CNRS UMR 7314, Université de Picardie Jules Verne, 80039 Amiens, France
| | - Léa Marichez
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Véronique Jubera
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Christine Labrugère
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Mathieu Duttine
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Christine Frayret
- Laboratoire de Réactivité et de Chimie des Solides (LRCS), CNRS UMR 7314, Université de Picardie Jules Verne, 80039 Amiens, France
| | - Manuel Gaudon
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
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10
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Mehling A, Benard S, Braun N, Degwert J, Duttine M, Jassoy C, Merk H, Rossow U, Welzel J, Wigger‐Alberti W, Wilhelm K, Ennen J. Adapting epicutaneous patch testing protocols to assess immediate‐type skin reactions. Int J Cosmet Sci 2020; 42:328-335. [DOI: 10.1111/ics.12619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/26/2020] [Indexed: 11/26/2022]
Affiliation(s)
- A. Mehling
- BASF Personal Care and Nutrition GmbH Duesseldorf Germany
| | - S. Benard
- Institute Dr. Schrader Hautphysiologie Holzminden Germany
| | - N. Braun
- DermaTronnier GmbH & Co. KG, Institute for Experimental Dermatology at Witten/Herdecke University Witten Germany
| | - J. Degwert
- SGS SIT GmbH Skin Investigation and Technology Hamburg Germany
| | - M. Duttine
- WIN COSMETIC GmbH & Co.KG Floersheim‐Dalsheim Germany
| | - C. Jassoy
- Henkel AG & Co. KGaA Duesseldorf Germany
| | - H. Merk
- RWTH Aachen University Aachen Germany
| | - U. Rossow
- CCR GmbH & Co. KG Eschweiler Germany
| | - J. Welzel
- Universitätsklinikum Augsburg Augsburg Germany
| | | | - K.P. Wilhelm
- proDERM Institut für Angewandte Dermatologische Forschung GmbH Hamburg Germany
| | - J. Ennen
- SkinNEXT Consulting Hamburg Germany
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11
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Cini A, Poggini L, Chumakov AI, Rüffer R, Spina G, Wattiaux A, Duttine M, Gonidec M, Fittipaldi M, Rosa P, Mannini M. Synchrotron-based Mössbauer spectroscopy characterization of sublimated spin crossover molecules. Phys Chem Chem Phys 2020; 22:6626-6637. [PMID: 32159166 DOI: 10.1039/c9cp04464g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The spin crossover (SCO) efficiency of [57Fe(bpz)2(phen)] (where bpz = bis(pyrazol-1-yl)borohydride and phen = 9,10-phenantroline) molecules deposited on gold substrates was investigated by means of synchrotron Mössbauer spectroscopy. The spin transition was driven thermally, or light induced via the LIESST (light induced excited spin-state trapping) effect. Both sets of measurements show that, once deposited on a gold substrate, the efficiency of the SCO mechanism is modified with respect to molecules in the bulk phase. A correlation in the distribution of hyperfine parameters in the sublimated films, not evidenced so far in the bulk phase, is reported. This translates into geometrical distortions of the first coordination sphere of the iron atom that seem to correlate with the decreased spin conversion. The work reported clearly shows the potentiality of synchrotron Mössbauer spectroscopy for the characterization of nanostructured Fe-based SCO systems, thus resulting as a key tool in view of their applications in innovative nanoscale devices.
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Affiliation(s)
- Alberto Cini
- Department of Physics and Astronomy, University of Florence and INSTM Research Unit of Florence, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy.
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12
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Serment B, Gaudon M, Toulemonde O, Duttine M, Brochon C, Demourgues A. Tuning the Cr IV/Cr III Valence States in Purple Cr-Doped SnO 2 Nanopowders: The Key Role of Cr IV Centers and Defects. Inorg Chem 2020; 59:678-686. [PMID: 31854984 DOI: 10.1021/acs.inorgchem.9b02943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A low content of chromium (≤5 mol %) has been incorporated into a SnO2 cassiterite by a coprecipitation route in a basic medium, followed by an annealing step under an O2 flow at T = 800 °C and T = 1000 °C. Accurate UV-vis and EPR spectroscopy investigations show the coexistence of isolated Cr4+ and Cr3+ ions as well as ferromagnetic Cr4+-Cr3+ and antiferromagnetic Cr3+-Cr3+ interactions. The strong purple hue is related to the isolated Cr4+ ions stabilized in a distorted octahedral site. This is thanks to the second-order Jahn-Teller (SOJT) effect with a crystal field splitting 10Dq value around 2.4 eV, whereas the 10Dq value is around 2 eV for isotropic Cr3+ ions, partially substituted for Sn4+ ions in cassiterite. Just after the coprecipitation process, only Cr3+ species are stabilized in this rutile network with a poor crystallinity. The isolated Cr4+ content remains high after annealing at 800 °C for 2 days especially for the highest Cr rate (2 and 5 mol %), leading to a darker purple color, but unfortunately the Cr3+ content also increases for a higher Cr concentration. A lighter purple hue can be reached after calcination at a higher temperature (T = 1000 °C) for a shorter time (4 h) but with a lower Cr content to avoid Cr clusters. This is due to stabilizing a high content of isolated Cr4+ species and limiting the Cr4+-Cr3+ ferromagnetic interactions, which are optimal for a 2% Cr content and also cause the color to darken. The key roles of the Cr4+ rate and the Cr4+-Cr3+ clusters create local defects whose concentration strongly varies with a total Cr content, which have then been demonstrated to strongly influence the optical and magnetic properties.
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Affiliation(s)
- Béatrice Serment
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026 , F-33600 Pessac , France.,CNRS, Université de Bordeaux, Bordeaux INP, LCPO, UMR 5629 , F-33600 Pessac , France
| | - Manuel Gaudon
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026 , F-33600 Pessac , France
| | - Olivier Toulemonde
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026 , F-33600 Pessac , France
| | - Mathieu Duttine
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026 , F-33600 Pessac , France
| | - Cyril Brochon
- CNRS, Université de Bordeaux, Bordeaux INP, LCPO, UMR 5629 , F-33600 Pessac , France
| | - Alain Demourgues
- CNRS, Université de Bordeaux, Bordeaux INP, ICMCB, UMR 5026 , F-33600 Pessac , France
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13
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Bourdin M, Gaudon M, Weill F, Duttine M, Gayot M, Messaddeq Y, Cardinal T. Nanoparticles (NPs) of WO 3-x Compounds by Polyol Route with Enhanced Photochromic Properties. Nanomaterials (Basel) 2019; 9:nano9111555. [PMID: 31683876 PMCID: PMC6915692 DOI: 10.3390/nano9111555] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 11/16/2022]
Abstract
Tungsten trioxide (WO3) is well-known as one of the most promising chromogenic compounds. It has a drastic change of coloration induced from different external stimuli and so its applications are developed as gas sensors, electrochromic panels or photochromic sensors. This paper focuses on the photochromic properties of nanoWO3, with tunable composition (with tunable oxygen sub-stoichiometry). Three reference samples with yellow, blue and black colors were prepared from polyol synthesis followed by post annealing under air, none post-annealing treatment, or a post-annealing under argon atmosphere. These three samples differ in terms of crystallographic structure (cubic system versus monoclinic system), oxygen vacancy concentration, electronic band diagram with occurrence of free or trapped electrons and their photochromic behavior. Constituting one main finding, it is shown that the photochromic behavior is highly dependent on the compound’s composition/color. Rapid and important change of coloration under UV (ultraviolet) irradiation was evidenced especially on the blue compound, i.e., the photochromic coloring efficiency of this compound in terms of contrast between bleached and colored phase, as the kinetic aspect is high. The photochromism is reversible in a few hours. This hence opens a new window for the use of tungsten oxide as smart photochromic compounds.
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Affiliation(s)
- Marie Bourdin
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR5026, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
- Department of Physics, Center for Optics, Photonics and Lasers (COPL), Laval University, 2375 rue de la Terrasse, Québec, QC G1V-0A6, Canada.
| | - Manuel Gaudon
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR5026, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
| | - François Weill
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR5026, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
| | - Mathieu Duttine
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR5026, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
| | - Marion Gayot
- CNRS, Univ. Bordeaux, PLACAMAT UMS 3626, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
| | - Younes Messaddeq
- Department of Physics, Center for Optics, Photonics and Lasers (COPL), Laval University, 2375 rue de la Terrasse, Québec, QC G1V-0A6, Canada.
| | - Thierry Cardinal
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR5026, 87 Avenue du Dr. Albert Schweitzer, 33608 F-Pessac CEDEX, France.
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14
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Nguyen LHB, Olchowka J, Belin S, Sanz Camacho P, Duttine M, Iadecola A, Fauth F, Carlier D, Masquelier C, Croguennec L. Monitoring the Crystal Structure and the Electrochemical Properties of Na 3(VO) 2(PO 4) 2F through Fe 3+ Substitution. ACS Appl Mater Interfaces 2019; 11:38808-38818. [PMID: 31560192 DOI: 10.1021/acsami.9b14249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We here present the synthesis of a new material, Na3(VO)Fe(PO4)2F2, by the sol-gel method. Its atomic and electronic structural descriptions are determined by a combination of several diffraction and spectroscopy techniques such as synchrotron X-ray powder diffraction and synchrotron X-ray absorption spectroscopy at V and Fe K edges, 57Fe Mössbauer, and 31P solid-state nuclear magnetic resonance spectroscopy. The crystal structure of this newly obtained phase is similar to that of Na3(VO)2(PO4)2F, with a random distribution of Fe3+ ions over vanadium sites. Even though Fe3+ and V4+ ions situate on the same crystallographic position, their local environment can be studied separately using 57Fe Mössbauer and X-ray absorption spectroscopy at Fe and V K edges, respectively. The Fe3+ ion resides in a symmetric octahedral environment, while the octahedral site of V4+ is greatly distorted due to the presence of the vanadyl bond. No electrochemical activity of the Fe4+/Fe3+ redox couple is detected, at least up to 5 V, whereas the reduction of Fe3+ to Fe2+ has been observed at ∼1.5 V versus Na+/Na through the insertion of 0.5 Na+ into Na3(VO)Fe(PO4)2F2. Comparing to Na3(VO)2(PO4)2F, the electrochemical profile of Na3(VO)Fe(PO4)2F2 in the same cycling condition shows a smaller polarization which could be due to a slight improvement in Na+ diffusion process thanks to the presence of Fe3+ in the framework. Furthermore, the desodiation mechanism occurring upon charging is investigated by operando synchrotron X-ray diffraction and operando synchrotron X-ray absorption at V K edge.
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Affiliation(s)
- Long H B Nguyen
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
- Laboratoire de Réactivité et de Chimie des Solides , Université de Picardie Jules Verne, CNRS-UMR #7314 , F-80039 Amiens Cedex 1, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
| | - Jacob Olchowka
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104 , F-80039 Amiens Cedex 1, France
| | | | - Paula Sanz Camacho
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
| | - Mathieu Duttine
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
| | - Antonella Iadecola
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
| | - François Fauth
- CELLS-ALBA Synchrotron , Cerdanyola del Vallès, E-08290 Barcelona , Spain
| | - Dany Carlier
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104 , F-80039 Amiens Cedex 1, France
| | - Christian Masquelier
- Laboratoire de Réactivité et de Chimie des Solides , Université de Picardie Jules Verne, CNRS-UMR #7314 , F-80039 Amiens Cedex 1, France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104 , F-80039 Amiens Cedex 1, France
| | - Laurence Croguennec
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB UMR 5026 , F-33600 Pessac , France
- RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS 3459 , F-80039 Amiens Cedex 1, France
- ALISTORE-ERI European Research Institute, FR CNRS 3104 , F-80039 Amiens Cedex 1, France
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15
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Péchev S, Velázquez M, Duttine M, Wattiaux A, Labrugère C, Veber P, Buffière S, Denux D. Multi-scale characterization of the cationic disorder in the novel borate Sr 6Tb 0.94Fe 1.06(BO 3) 6. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s2053273319093057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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16
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Salles C, Steil MC, Fouletier J, Duttine M, Wattiaux A, Marinha D. Long-term stability of iron-doped calcium titanate CaTi0.9Fe0.1O3−δ oxygen transport membranes under non-reactive and reactive atmospheres. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Houari S, Picard E, Wurtz T, Vennat E, Roubier N, Wu T, Guerquin-Kern J, Duttine M, Thuy T, Berdal A, Babajko S. Disrupted Iron Storage in Dental Fluorosis. J Dent Res 2019; 98:994-1001. [DOI: 10.1177/0022034519855650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Enamel formation and quality are dependent on environmental conditions, including exposure to fluoride, which is a widespread natural element. Fluoride is routinely used to prevent caries. However, when absorbed in excess, fluoride may also lead to altered enamel structural properties associated with enamel gene expression modulations. As iron plays a determinant role in enamel quality, the aim of our study was to evaluate the iron metabolism in dental epithelial cells and forming enamel of mice exposed to fluoride, as well as its putative relation with enamel mechanical properties. Iron storage was investigated in dental epithelial cells with Perl’s blue staining and secondary ion mass spectrometry imaging. Iron was mainly stored by maturation-stage ameloblasts involved in terminal enamel mineralization. Iron storage was drastically reduced by fluoride. Among the proteins involved in iron metabolism, ferritin heavy chain (Fth), in charge of iron storage, appeared as the preferential target of fluoride according to quantitative real-time polymerase chain reaction, Western blotting, and immunohistochemistry analyses. Fluorotic enamel presented a decreased quantity of iron oxides attested by electron spin resonance technique, altered mechanical properties measured by nanoindentation, and ultrastructural defects analyzed by scanning electron microscopy and energy dispersive x-ray spectroscopy. The in vivo functional role of Fth was illustrated with Fth+/-mice, which incorporated less iron into their dental epithelium and exhibited poor enamel quality. These data demonstrate that exposure to excessive fluoride decreases ameloblast iron storage, which contributes to the defective structural and mechanical properties in rodent fluorotic enamel. They raise the question of fluoride’s effects on iron storage in other cells and organs that may contribute to its effects on population health.
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Affiliation(s)
- S. Houari
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université de Paris, Sorbonne Université, Laboratory of Molecular Oral Pathophysiology, Paris, France
- Garancière Dental Faculty, Université de Paris, Paris, France
| | - E. Picard
- Centre de Recherche des Cordeliers INSERM UMRS 1138 Université de Paris, Sorbonne Université, Physiopathology of Ocular Diseases to Clinical Development, Paris, France
| | - T. Wurtz
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université de Paris, Sorbonne Université, Laboratory of Molecular Oral Pathophysiology, Paris, France
| | - E. Vennat
- Laboratory of Mechanics of Soils, Structures and Materials, CNRS, Centrale-Supélec, Université Paris-Saclay, Châtenay-Malabry, France
| | - N. Roubier
- Laboratory of Mechanics of Soils, Structures and Materials, CNRS, Centrale-Supélec, Université Paris-Saclay, Châtenay-Malabry, France
| | - T.D. Wu
- Institut Curie, INSERM U1196, Université Paris-Saclay, Orsay, France
- Université Paris-Sud, Université Paris-Saclay, CNRS UMR 9187, Orsay, France
| | - J.L. Guerquin-Kern
- Institut Curie, INSERM U1196, Université Paris-Saclay, Orsay, France
- Université Paris-Sud, Université Paris-Saclay, CNRS UMR 9187, Orsay, France
| | - M. Duttine
- CNRS UPR 9048, Université de Bordeaux, Institute of Chemistry and Condensed Matter of Bordeaux, Pessac, France
| | - T.T. Thuy
- Faculty of Odonto-stomatology, HochiMinh University of Medicine and Pharmacology, HôchiMinh Ville, Vietnam
| | - A. Berdal
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université de Paris, Sorbonne Université, Laboratory of Molecular Oral Pathophysiology, Paris, France
- Garancière Dental Faculty, Université de Paris, Paris, France
- Reference Center for Oral and Dental Rare Diseases, Rothschild Hospital, Paris, France
| | - S. Babajko
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université de Paris, Sorbonne Université, Laboratory of Molecular Oral Pathophysiology, Paris, France
- Garancière Dental Faculty, Université de Paris, Paris, France
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18
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Jebli S, Ben Hamed T, LEBRAUD E, Pechev S, Etienne L, Gaudon M, Duttine M, Wattiaux A, Ben Amara M, Toulemonde O. Synthesis, crystal structure, Mössbauer spectroscopy, optical and magnetic properties of Cs2M2Fe(PO4)3 (M = Mn, Co, Ni, Cu) ordered pollucite structure. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Burbano M, Duttine M, Morgan BJ, Borkiewicz OJ, Chapman KW, Wattiaux A, Demourgues A, Groult H, Salanne M, Dambournet D. Impact of Anion Vacancies on the Local and Electronic Structures of Iron-Based Oxyfluoride Electrodes. J Phys Chem Lett 2019; 10:107-112. [PMID: 30565946 DOI: 10.1021/acs.jpclett.8b03503] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The properties of crystalline solids can be significantly modified by deliberately introducing point defects. Understanding these effects, however, requires understanding the changes in geometry and electronic structure of the host material. Here we report the effect of forming anion vacancies, via dehydroxylation, in a hexagonal tungsten-bronze-structured iron oxyfluoride, which has potential use as a lithium-ion battery cathode. Our combined pair distribution function and density functional theory analysis indicates that oxygen vacancy formation is accompanied by spontaneous rearrangement of fluorine anions and vacancies, producing dual pyramidal (FeF4)-O-(FeF4) structural units containing 5-fold-coordinated Fe atoms. The addition of lattice oxygen introduces new electronic states above the top of the valence band, with a corresponding reduction in the optical band gap from 4.05 to 2.05 eV. This band gap reduction relative to the FeF3 parent material is correlated with a significant improvement in lithium insertion capability relative to a defect-free compound.
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Affiliation(s)
- Mario Burbano
- CNRS, Physico-chimie des électrolytes et nano-systèmes interfaciaux, PHENIX , Sorbonne Université , F-75005 Paris , France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459 , 80039 Amiens Cedex , France
| | - Mathieu Duttine
- CNRS , Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac , France
| | - Benjamin J Morgan
- Department of Chemistry , University of Bath , Claverton Down BA2 7AY , United Kingdom
- The Faraday Institution , Quad One, Harwell Science and Innovation Campus, Didcot OX11 0RA , United Kingdom
| | - Olaf J Borkiewicz
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Karena W Chapman
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Alain Wattiaux
- CNRS , Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac , France
| | - Alain Demourgues
- CNRS , Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac , France
| | - Henri Groult
- CNRS, Physico-chimie des électrolytes et nano-systèmes interfaciaux, PHENIX , Sorbonne Université , F-75005 Paris , France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459 , 80039 Amiens Cedex , France
| | - Mathieu Salanne
- CNRS, Physico-chimie des électrolytes et nano-systèmes interfaciaux, PHENIX , Sorbonne Université , F-75005 Paris , France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459 , 80039 Amiens Cedex , France
| | - Damien Dambournet
- CNRS, Physico-chimie des électrolytes et nano-systèmes interfaciaux, PHENIX , Sorbonne Université , F-75005 Paris , France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459 , 80039 Amiens Cedex , France
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20
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Mentre O, Blazquez-Alcover I, Garcia-Martin S, Duttine M, Wattiaux A, Simon P, Huve M, Daviero-Minaud S. Mixed-Valence Iron Dumortierite Fe 13.52.22+(As 5+O 4- x) 8(OH) 6 and Its Intricate Topotactic Exsolution at Mild Temperatures. Inorg Chem 2018; 57:15093-15104. [PMID: 30512938 DOI: 10.1021/acs.inorgchem.8b02122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mixed-valent iron arsenate hydroxide Fe13.52.22+(AsO4- x)8(OH)6, x = 0.25, was prepared using the reaction of iron metal with arsenate in aqueous solution and autogenous pressure. Its crystal structure reveals a dumortierite-like framework with mixed-valent Fe2+/Fe3+ in double chains creating channel walls. Remarkably, hexagonal channels consist of chains of face-sharing Fe2+O6 octahedra, 3/4th occupied, whereas AsO4 tetrahedra occupy triangular ones with a single " up" orientation according to the polar P63 mc symmetry. We have analyzed the transformation of this phase upon heating, in which several chemical processes interact, including dehydroxylation, arsenate to arsenite reduction, and oxidative exsolution of a significant part of iron (ca. 15%) found at the surface as hematite and amorphous Fe-rich surficial layer. It leaves a strongly disordered composite structure between several Fe3+-based subunits, in which ∼80% of them is ordered in a complex supercell. Because of the high degree of disorder, the crystal chemistry of the individual subunits and their plausible imbrication were considered to unravel the most plausible ideal 3D model.
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Affiliation(s)
- Olivier Mentre
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS-UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille , France
| | - Ignacio Blazquez-Alcover
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS-UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille , France
| | - Susana Garcia-Martin
- Departamento de Química Inorgánica, Facultad de C.C. Químicas , Universidad Complutense , 28040 Madrid , Spain
| | - Mathieu Duttine
- ICMCB, CNRS-UPR 9048, Université Bordeaux , F-33600 Pessac , France
| | - Alain Wattiaux
- ICMCB, CNRS-UPR 9048, Université Bordeaux , F-33600 Pessac , France
| | - Pardis Simon
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS-UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille , France
| | - Marielle Huve
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS-UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille , France
| | - Sylvie Daviero-Minaud
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS-UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille , France
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Gaudon M, Salek G, Kande M, Andron I, Frayret C, Durand E, Penin N, Duttine M, Wattiaux A, Jubera V. CaSn(OH)6 hydroxides, CaSnO3 oxides and CaSnF6 fluorides: Synthesis and structural filiation. Cationic environment impact on Pr3+ doped compounds luminescence. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Pinho SLC, Amaral JS, Wattiaux A, Duttine M, Delville MH, Geraldes CFGC. Synthesis and Characterization of Rare-Earth Orthoferrite LnFeO3
Nanoparticles for Bioimaging. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800468] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sonia L. C. Pinho
- Department of Chemistry; CICECO; University of Aveiro; 3810-193 Aveiro Portugal
- CNRS; ICMCB; Univ. Bordeaux; 33600 Pessac France
| | - João S. Amaral
- Department of Physics; CICECO; University of Aveiro; 3810-193 Aveiro Portugal
| | | | | | | | - Carlos F. G. C. Geraldes
- Department of Life Sciences; Faculty of Science and Technology; University of Coimbra; Calçada Martim de Freitas 3000-393 Coimbra Portugal
- Coimbra Chemistry Center; University of Coimbra; Rua Larga 3004-535 Coimbra Portugal
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23
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Velázquez M, Péchev S, Duttine M, Wattiaux A, Labrugère C, Veber P, Buffière S, Denux D. Point defect disorder in high-temperature solution grown Sr 6 Tb 0.94 Fe 1.06 (BO 3 ) 6 single crystals. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.05.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Toulemonde O, Devoti A, Rosa P, Guionneau P, Duttine M, Wattiaux A, Lebraud E, Penin N, Decourt R, Fargues A, Buffière S, Demourgues A, Gaudon M. Probing Co- and Fe-doped LaMO 3 (M = Ga, Al) perovskites as thermal sensors. Dalton Trans 2018; 47:382-393. [PMID: 29218338 DOI: 10.1039/c7dt03647g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a Co-doped or Fe-doped La(Ga,Al)O3 perovskite via the Pechini process aimed to achieve a color change induced by temperature and associated with spin crossover (SCO). In Fe-doped samples, iron was shown to be in the high-spin state, whereas SCO from the low-spin to the high-spin configuration was detected in Co-doped compounds when the temperature increased. Fe-doped compounds clearly adopted the high-spin configuration even down to 4 K on the basis of Mössbauer spectroscopic analysis. The original SCO phenomenon in the Co-doped compounds LaGa1-xCoxO3 (0 < x < 0.1) was evidenced and discussed on the basis of in situ X-ray diffraction analysis and UV-vis spectroscopy. This SCO is progressive as a function of temperature and occurs over a broad range of temperatures between roughly 300 °C and 600 °C. The determination of a crystal field strength of about 2 eV and a Racah parameter B of about 500 cm-1 for Co3+ (3d6) ions show that these values allow the occurrence of SCO. Hence, this study shows the possibility of using LaGa1-xCoxO3 compounds as thermal sensors at low Co contents (x = 0.02). The competition between steric and electronic effects in LaGaO3 in which Co3+ is stabilized in the LS state shows that electronic effects with the creation of M-O covalent bonds are predominant and contribute to the stabilization of a high crystal field around Co3+ (LS) although its ionic radius is smaller in comparison with that of Ga3+.
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25
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Nicoud S, Huvé M, Hernandez O, Pautrat A, Duttine M, Wattiaux A, Colin C, Kabbour H, Mentré O. Comprehensive Study of Oxygen Storage in YbFe 2O 4+x (x ≤ 0.5): Unprecedented Coexistence of FeO n Polyhedra in One Single Phase. J Am Chem Soc 2017; 139:17031-17043. [PMID: 29094941 DOI: 10.1021/jacs.7b06409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The multiferroic LuFe2.5+2O4 was recently proposed as a promising material for oxygen storage due to its easy reversible oxidation into LuFe3+2O4.5. We have investigated the similar scenario in YbFe2O4+x, leading to a slightly greater oxygen storage (OSC) capacity of 1434 μmol O/g. For the first time, the structural model of LnFe2O4.5 was fully understood by high-resolution microscopy images, and synchrotron and neutron diffraction experiments, as well as maximum entropy method. The oxygen uptake promotes a reconstructive shearing of the [YbO2] sub-units controlled by the adaptive Ln/Fe oxygen coordination and the Fe2/3+ redox. After oxidation, the rearrangement of the Fe coordination polyhedra is unique such that all available FeOn units (n = 6, 5, 4 in octahedra, square pyramids, trigonal bipyramids, tetrahedra) were identified in modulated rows growing in plane. This complex pseudo-ordering gives rise to short-range antiferromagnetic correlation within an insulating state.
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Affiliation(s)
- Sarah Nicoud
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS - UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille, France
| | - Marielle Huvé
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS - UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille, France
| | - Olivier Hernandez
- ISCR, CNRS - UMR 6226, Université de Rennes 1 , F-35042 Rennes, France
| | - Alain Pautrat
- CRISMAT, CNRS - UMR 6508, ENSICAEN , F-14050 Caen, France
| | - Mathieu Duttine
- ICMCB, CNRS - UPR 9048, Université Bordeaux , F-33600 Pessac, France
| | - Alain Wattiaux
- ICMCB, CNRS - UPR 9048, Université Bordeaux , F-33600 Pessac, France
| | - Claire Colin
- Institut NEEL, Université Grenoble Alpes , F-38000 Grenoble, France
| | - Houria Kabbour
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS - UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille, France
| | - Olivier Mentré
- Unité de Catalyse et Chimie du Solide (UCCS), CNRS - UMR 8181, Université d'Artois, ENSCL, Université de Lille , F-59000 Lille, France
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Soulmi N, Dambournet D, Rizzi C, Sirieix-Plénet J, Duttine M, Wattiaux A, Swiatowska J, Borkiewicz OJ, Groult H, Gaillon L. Structural and Morphological Description of Sn/SnO x Core-Shell Nanoparticles Synthesized and Isolated from Ionic Liquid. Inorg Chem 2017; 56:10099-10106. [PMID: 28796492 DOI: 10.1021/acs.inorgchem.7b01850] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The potential application of high capacity Sn-based electrode materials for energy storage, particularly in rechargeable batteries, has led to extensive research activities. In this scope, the development of an innovative synthesis route allowing to downsize particles to the nanoscale is of particular interest owing to the ability of such nanomaterial to better accommodate volume changes upon electrochemical reactions. Here, we report on the use of room temperature ionic liquid (i.e., [EMIm+][TFSI-]) as solvent, template, and stabilizer for Sn-based nanoparticles. In such a media, we observed, using Cryo-TEM, that pure Sn nanoparticles can be stabilized. Further washing steps are, however, mandatory to remove residual ionic liquid. It is shown that the washing steps are accompanied by the partial oxidation of the surface, leading to a core-shell structured Sn/SnOx composite. To understand the structural features of such a complex architecture, HRTEM, Mössbauer spectroscopy, and the pair distribution function were employed to reveal a crystallized β-Sn core and a SnO and SnO2 amorphous shell. The proportion of oxidized phases increases with the final washing step with water, which appeared necessary to remove not only salts but also the final surface impurities made of the cationic moieties of the ionic liquid. This work highlights the strong oxidation reactivity of Sn-based nanoparticles, which needs to be taken into account when evaluating their electrochemical properties.
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Affiliation(s)
- Nadia Soulmi
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Damien Dambournet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Cécile Rizzi
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | | | - Mathieu Duttine
- CNRS, Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac, France
| | - Alain Wattiaux
- CNRS, Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac, France
| | - Jolanta Swiatowska
- PSL Research University, Chimie ParisTech - CNRS , Institut de Recherche de Chimie Paris, F-75005 Paris, France
| | - Olaf J Borkiewicz
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Henri Groult
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Laurent Gaillon
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
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27
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Vicente AI, Joseph A, Ferreira LP, de Deus Carvalho M, Rodrigues VHN, Duttine M, Diogo HP, Minas da Piedade ME, Calhorda MJ, Martinho PN. Dynamic spin interchange in a tridentate Fe(iii) Schiff-base compound. Chem Sci 2016; 7:4251-4258. [PMID: 30155072 PMCID: PMC6013817 DOI: 10.1039/c5sc04577k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/16/2016] [Indexed: 11/21/2022] Open
Abstract
The thermosalient effect is still a rare and poorly understood phenomenon, where crystals suddenly jump, bend, twist or explode upon undergoing a thermally activated phase transition. The synthesis and characterisation of the new spin transition Fe(iii) compound [Fe(5-Br-salEen)2][ClO4] (salEen = N-ethyl-N-(2-aminoethyl)salicylaldiminate) is described and its thermosalient behaviour reported. It is the first example of a thermosalient effect with a spin transition and magnetic, calorimetric, diffraction, microscopy and computational studies are used to characterise these effects. Both thermosalient effect and spin transition occur around 320 K upon heating and are accompanied by an anisotropic unit cell change with conservation of crystal symmetry that causes a large enough stress of the crystal lattice to induce crystal explosion. This stress can ultimately be traced back to a diffusionless and distortive structural perturbation resulting in a coupled spin transition-thermosalient effect.
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Affiliation(s)
- Ana I Vicente
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
| | - Abhinav Joseph
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
| | - Liliana P Ferreira
- BioISI , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal
- Department of Physics , University of Coimbra , 3004-516 Coimbra , Portugal
| | - Maria de Deus Carvalho
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
| | | | - Mathieu Duttine
- CNRS , Université de Bordeaux , ICMCB , 87 avenue du Dr. A. Schweitzer , Pessac F-33608 , France
| | - Hermínio P Diogo
- Centro de Química Estrutural , Instituto Superior Técnico , Universidade de Lisboa , 1049-001 Lisboa , Portugal
| | - Manuel E Minas da Piedade
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
| | - Maria José Calhorda
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
| | - Paulo N Martinho
- Centro de Química e Bioquímica , Faculdade de Ciências , Universidade de Lisboa , Campo Grande , 1749-016 Lisboa , Portugal .
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Chevalier B, Duttine M, Wattiaux A. Influence of hydrogenation and mechanical grinding on the structural and ferromagnetic properties of GdFeSi. Zeitschrift für Naturforschung B 2016. [DOI: 10.1515/znb-2015-0225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Hydrogen insertion into GdFeSi induces (i) a structural transition from a tetragonal CeFeSi-type to a tetragonal ZrCuSiAs-type, (ii) an anisotropic expansion of the unit cell parameters because the a parameter decreases, whereas the c parameter increases, and (iii) a decrease in Curie temperature from 121 to 20 K. On the contrary, an amorphous ferromagnet (T
C = 65 K) is obtained by mechanical grinding of GdFeSi. The three compounds (GdFeSi, GdFeSiH, and amorphous GdFeSi) were investigated by 57Fe Mössbauer spectroscopy. At 4.2 K, this study has revealed that the magnetically ordered Gd substructure produces a small transferred hyperfine magnetic field at the 57Fe nucleus.
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Affiliation(s)
- Bernard Chevalier
- CNRS, Université de Bordeaux , ICMCB, 87 Avenue du Docteur Albert Schweitzer, 33608 Pessac, France
| | - Mathieu Duttine
- CNRS, Université de Bordeaux , ICMCB, 87 Avenue du Docteur Albert Schweitzer, 33608 Pessac, France
| | - Alain Wattiaux
- CNRS, Université de Bordeaux , ICMCB, 87 Avenue du Docteur Albert Schweitzer, 33608 Pessac, France
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Fabritchnyi PB, Afanasov MI, Mezhuev EM, Wattiaux A, Duttine M, Labrugère C. Effect of heterovalent substitutions in yttrium chromite on the hyperfine interactions of 119Sn4+ studied by Mössbauer spectroscopy. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2015.12.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Affiliation(s)
- Guillaume Seitz
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
| | - Nicolas Penin
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
| | - Léa Decoux
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
| | - Alain Wattiaux
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
| | - Mathieu Duttine
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
| | - Manuel Gaudon
- Université de Bordeaux, CNRS, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 F Pessac Cedex, France
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Burbano M, Duttine M, Borkiewicz O, Wattiaux A, Demourgues A, Salanne M, Groult H, Dambournet D. Anionic Ordering and Thermal Properties of FeF3·3H2O. Inorg Chem 2015; 54:9619-25. [DOI: 10.1021/acs.inorgchem.5b01705] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mario Burbano
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 place Jussieu, F-75005 Paris, France
- CNRS, Univ Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
- Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459, 80039 Amiens Cedex, France
| | - Mathieu Duttine
- CNRS, Univ Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Olaf Borkiewicz
- X-ray Science
Division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Alain Wattiaux
- CNRS, Univ Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | | | - Mathieu Salanne
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 place Jussieu, F-75005 Paris, France
| | - Henri Groult
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 place Jussieu, F-75005 Paris, France
| | - Damien Dambournet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 place Jussieu, F-75005 Paris, France
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Dambournet D, Chapman KW, Duttine M, Borkiewicz O, Chupas PJ, Groult H. Lithium Insertion Mechanism in Iron-Based Oxyfluorides with Anionic Vacancies Probed by PDF Analysis. ChemistryOpen 2015; 4:443-7. [PMID: 26478837 PMCID: PMC4603403 DOI: 10.1002/open.201500031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Indexed: 11/21/2022] Open
Abstract
The mechanism of lithium insertion that occurs in an iron oxyfluoride sample with a hexagonal–tungsten–bronze (HTB)-type structure was investigated by the pair distribution function. This study reveals that upon lithiation, the HTB framework collapses to yield disordered rutile and rock salt phases followed by a conversion reaction of the fluoride phase toward lithium fluoride and nanometer-sized metallic iron. The occurrence of anionic vacancies in the pristine framework was shown to strongly impact the electrochemical activity, that is, the reversible capacity scales with the content of anionic vacancies. Similar to FeOF-type electrodes, upon de-lithiation, a disordered rutile phase forms, showing that the anionic chemistry dictates the atomic arrangement of the re-oxidized phase. Finally, it was shown that the nanoscaling and structural rearrangement induced by the conversion reaction allow the in situ formation of new electrode materials with enhanced electrochemical properties.
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Affiliation(s)
- Damien Dambournet
- Sorbonne Universités, UPMC, Univ. Paris 06, UMR 8234, PHENIX 75005, Paris, France ; CNRS, UMR 8234, PHENIX 75005, Paris, France
| | - Karena W Chapman
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory Argonne, IL, 60439, USA
| | - Mathieu Duttine
- Sorbonne Universités, UPMC, Univ. Paris 06, UMR 8234, PHENIX 75005, Paris, France ; CNRS, UMR 8234, PHENIX 75005, Paris, France ; CNRS, Univ. Bordeaux, ICMCB, UPR 9048 33600, Pessac, France
| | - Olaf Borkiewicz
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory Argonne, IL, 60439, USA
| | - Peter J Chupas
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory Argonne, IL, 60439, USA
| | - Henri Groult
- Sorbonne Universités, UPMC, Univ. Paris 06, UMR 8234, PHENIX 75005, Paris, France ; CNRS, UMR 8234, PHENIX 75005, Paris, France
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Rapakousiou A, Mouche C, Duttine M, Ruiz J, Astruc D. Click Synthesis and Redox Chemistry of Mono- and Heterobimetallic Triazolyl and Triazolium-Ferrocene and Cobalticinium Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200755] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Motreff A, Correa da Costa R, Allouchi H, Duttine M, Mathonière C, Duboc C, Vincent JM. A fluorous copper(II)–carboxylate complex which magnetically and reversibly responds to humidity in the solid state. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2011.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Motreff A, Correa da Costa R, Allouchi H, Duttine M, Mathonière C, Duboc C, Vincent JM. Dramatic Solid-State Humidity-Induced Modification of the Magnetic Coupling in a Dimeric Fluorous Copper(II)−Carboxylate Complex. Inorg Chem 2009; 48:5623-5. [DOI: 10.1021/ic9005218] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Artur Motreff
- Institut des Sciences Moléculaires, CNRS—UMR 5255, Université Bordeaux 1, Talence, France
| | | | - Hassan Allouchi
- Laboratoire de Chimie Physique, PCMB-E.A 4244, Université de Tours, Tours, France
| | - Mathieu Duttine
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS—UPR 9048, Université Bordeaux 1, Pessac, France
| | - Corine Mathonière
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS—UPR 9048, Université Bordeaux 1, Pessac, France
| | - Carole Duboc
- Département de Chimie Moléculaire, CNRS—UMR 5250, Université Joseph Fourier, Grenoble, France
| | - Jean-Marc Vincent
- Institut des Sciences Moléculaires, CNRS—UMR 5255, Université Bordeaux 1, Talence, France
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Chapoulie R, Cazenave S, Duttine M. Laser cleaning of historical limestone buildings in Bordeaux appraisal using cathodoluminescence and electron paramagnetic resonance. Environ Sci Pollut Res Int 2008; 15:237-243. [PMID: 18504843 DOI: 10.1065/espr2007.07.436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Most historical buildings in Bordeaux city are made of limestone. This yellowish-white rock is rather porous and highly sensitive to pollution. As a consequence of local weathering conditions, these buildings present a dark appearance due to the development of a superficial dark grey to black crust. METHODS For the last decade, a campaign has been underway to clean these buildings. Eleven techniques of surface treatment have been used, including laser beam technology. As a contribution to the study of laser beam effects on stone buildings, two analytical methods have been used on clean versus unclean surfaces: Cathodoluminescence (CL) and Electron Paramagnetic Resonance (EPR), in addition to SEM-EDX and XRD. RESULTS The black crust is composed of different types of particles: carbon porous micro-particles of industrial origin, atmospheric dust due to the erosion of soils and rocks, alumino-silicate particles from urban pollution; all these particles being cemented by gypsum. DISCUSSION As far as heritage conservation is concerned, the laser surface treatment not only preserves the original patina of the stone, but also leaves surface smoothness unaltered. CONCLUSIONS AND PERSPECTIVES CL and EPR data confirm that lasers--with highly controlled parameters--only get rid of the black crust and, thus, reveal the underneath layer, the so-called patina. This patina shows no luminescence, whereas the limestone on which it has grown shows a bright orange emission of CL. This indicates CL to be a fast and easy way to provide a high quality control for the restoration of polluted ancient stones.
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Affiliation(s)
- Rémy Chapoulie
- CRP2A (Laboratory of Physics for Archaeology), CNRS UMR 5060 IRAMAT, Université Michel de Montaigne Bordeaux 3, Maison de l'Archéologie, 33607 Pessac, France.
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Duttine M, Guibert P, Perraut A, Lahaye C, Bechtel F, Villeneuve G. Effects of thermal treatment on TL and EPR of flints and their importance in TL-dating: application to French Mousterian sites of Les Forêts (Dordogne) and Jiboui (Drôme). RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2004.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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