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Jacobs J, Wang HC, Marques MAL, Xu K, Schmedt auf der Günne J, Ebbinghaus SG. Ruddlesden-Popper Oxyfluorides La 2Ni 1-xCu xO 3F 2 (0 ≤ x ≤ 1): Impact of the Ni/Cu Ratio on the Structure. Inorg Chem 2024; 63:6075-6081. [PMID: 38506110 PMCID: PMC10988547 DOI: 10.1021/acs.inorgchem.4c00399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Ruddlesden-Popper oxyfluorides La2Ni1-xCuxO3F2 (0 ≤ x ≤ 1) were obtained by topochemical reaction of oxide precursors La2Ni1-xCuxO4, prepared by citrate-based soft chemistry synthesis, with polyvinylidene fluoride (PVDF) as the fluorine source. Systematic changes of the crystal structure in the oxide as well as the oxyfluoride substitution series were investigated. For 0.2 ≤ x ≤ 0.9, the oxyfluorides adopt the monoclinic (C2/c) structural distortion previously solved for the x = 0.8 compound based on neutron powder diffraction data, whereas the sample with a lower Cu content of x = 0.1 crystallizes in the orthorhombic (Cccm) structure variant of La2NiO3F2. The orthorhombic-to-monoclinic structural transition was found to be the result of an additional tilt component of the Jahn-Teller elongated CuO4F2 octahedra. The structural transitions were additionally studied by DFT calculations, confirming the monoclinic space group symmetry. The "channel-like" anionic ordering of the endmembers La2NiO3F2 and La2CuO3F2 was checked by 19F MAS NMR experiments and was found to persist throughout the entire substitution series.
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Affiliation(s)
- Jonas Jacobs
- Faculty
of Natural Sciences II, Institute of Chemistry, Inorganic Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, Halle D-06120, Germany
| | - Hai-Chen Wang
- Research
Center Future Energy Materials and Systems of the University Alliance
Ruhr, Faculty of Mechanical Engineering, Ruhr University Bochum, Universitätsstraße 150, Bochum D-44801, Germany
| | - Miguel A. L. Marques
- Research
Center Future Energy Materials and Systems of the University Alliance
Ruhr, Faculty of Mechanical Engineering, Ruhr University Bochum, Universitätsstraße 150, Bochum D-44801, Germany
| | - Ke Xu
- Faculty
IV:
School of Science and Technology, Department of Chemistry and Biology,
Inorganic Materials Chemistry, University
of Siegen, Adolf-Reichwein-Str. 2, Siegen D-57076, Germany
| | - Jörn Schmedt auf der Günne
- Faculty
IV:
School of Science and Technology, Department of Chemistry and Biology,
Inorganic Materials Chemistry, University
of Siegen, Adolf-Reichwein-Str. 2, Siegen D-57076, Germany
| | - Stefan G. Ebbinghaus
- Faculty
of Natural Sciences II, Institute of Chemistry, Inorganic Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, Halle D-06120, Germany
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Imanaka N, Nunotani N. Environmental catalysts advance focused on lattice oxygen for the decomposition of harmful organic compounds. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2023; 99:198-212. [PMID: 37518009 DOI: 10.2183/pjab.99.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
The recent industrial growth has made our lives more comfortable; however, it has led to an increase in the concentration of harmful compounds, such as carbon monoxide, volatile organic compounds (e.g., toluene), and phenolic compounds (e.g., phenol and cresol), in the environment. Catalytic oxidation using environmental catalysts is an important method for the removal of harmful compounds. To date, novel environmental catalysts have been developed from unique concepts based on solid-state ionics. In particular, the oxygen supply ability of a promoter can supply active oxygen from inside the lattice to the catalytically active site. Our catalysts exhibited high activity for the oxidation of harmful chemicals under moderate conditions in both the gaseous and liquid phases compared to conventional catalysts. This short review article describes our concepts of material design and our novel catalysts (ceria-zirconia (CeO2-ZrO2), apatite-type lanthanum silicate (La10Si6O27), and lanthanum oxyfluoride (LaOF) based catalysts).
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Affiliation(s)
- Nobuhito Imanaka
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Naoyoshi Nunotani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Guerra RB, de Campos Fraga-Silva TF, Aguiar J, Oshiro PB, Holanda BB, Venturini J, Bannach G. Lanthanum(III) and neodymium(III) complexes with anti-inflammatory drug sulindac: Synthesis, characterization, thermal investigation using coupled techniques TG-FTIR, and in vitro biological studies. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Udayakantha M, Schofield P, Waetzig GR, Banerjee S. A full palette: Crystal chemistry, polymorphism, synthetic strategies, and functional applications of lanthanide oxyhalides. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.12.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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DeVore MA, Klug CA, Kriz MR, Roy LE, Wellons MS. Investigations of Uranyl Fluoride Sesquihydrate (UO2F2·1.57H2O): Combining 19F Solid-State MAS NMR Spectroscopy and GIPAW Chemical Shift Calculations. J Phys Chem A 2018; 122:6873-6878. [DOI: 10.1021/acs.jpca.8b04369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael A. DeVore
- Savannah River National Laboratory, P.O. Box A, Aiken, South Carolina 29808, United States
| | - Christopher A. Klug
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Maria R. Kriz
- Savannah River National Laboratory, P.O. Box A, Aiken, South Carolina 29808, United States
| | - Lindsay E. Roy
- Savannah River National Laboratory, P.O. Box A, Aiken, South Carolina 29808, United States
| | - Matthew S. Wellons
- Savannah River National Laboratory, P.O. Box A, Aiken, South Carolina 29808, United States
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Dabachi J, Body M, Galven C, Boucher F, Legein C. Preparation-Dependent Composition and O/F Ordering in NbO 2F and TaO 2F. Inorg Chem 2017; 56:5219-5232. [PMID: 28398062 DOI: 10.1021/acs.inorgchem.7b00355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Through an analysis combining powder XRD, TGA, and 19F and 1H solid-state NMR, it is confirmed for NbO2F and shown for TaO2F that both contain hydroxyl defects and metal vacancies when prepared by aqueous solution synthesis. The formulations M1-x□xO2-5x(OH,F)1+5x of both the samples are determined. The effects of the usually applied thermal treatments are examined. Obtaining pure NbO2F and TaO2F from these samples, that is, fully removing metal vacancies and hydroxide, while avoiding the formation of M2O5, is not that easy. Since thermal treatments result in dehydroxylation and defluorination, it requires, at least, a larger amount of fluorine than metal initially, which may not be the case. We also confirm that the solid-state synthesis is an efficient method to avoid metal vacancies and hydroxyl defects in NbO2F and then apply it to the synthesis of TaO2F. The local structure of NbO2F and TaO2F is poorly described by an ideal cubic ReO3-type model with O and F randomly distributed over the available anion sites. Since O/F ordering was previously highlighted, NbO2F and TaO2F cubic 3 × 3 × 3 supercells featuring -M-O-M-O-M-F- chains along ⟨100⟩ have been built and geometry optimized. These optimized supercells lead to more realistic structures than the previously proposed models, that is, really disordered structures with angularly and radially distorted MX6 octahedra as expected in disordered compounds. Moreover, the structural modeling of NbO2F and TaO2F by these geometry-optimized supercells is supported by the computed 19F and 93Nb NMR parameters, which give very good agreement with the experimental ones.
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Affiliation(s)
- Jamal Dabachi
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Monique Body
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Cyrille Galven
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Florent Boucher
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS , 2 Rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Christophe Legein
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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Cagnetta G, Liu H, Zhang K, Huang J, Wang B, Deng S, Wang Y, Yu G. Mechanochemical conversion of brominated POPs into useful oxybromides: a greener approach. Sci Rep 2016; 6:28394. [PMID: 27325373 PMCID: PMC4914857 DOI: 10.1038/srep28394] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/01/2016] [Indexed: 11/18/2022] Open
Abstract
Brominated organic pollutants are considered of great concern for their adverse effect on human health and the environment, so an increasing number of such compounds are being classified as persistent organic pollutants (POPs). Mechanochemical destruction is a promising technology for POPs safe disposal because it can achieve their complete carbonization by solvent-free high energy ball milling at room temperature. However, a large amount of co-milling reagent usually is necessary, so a considerable volume of residue is produced. In the present study a different approach to POPs mechanochemical destruction is proposed. Employing stoichiometric quantities of Bi2O3 or La2O3 as co-milling reagent, brominated POPs are selectively and completely converted into their corresponding oxybromides (i.e. BiOBr and LaOBr), which possess very peculiar properties and can be used for some actual and many more potential applications. In this way, bromine is beneficially reused in the final product, while POPs carbon skeleton is safely destroyed to amorphous carbon. Moreover, mechanochemical destruction is employed in a greener and more sustainable manner.
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Affiliation(s)
- Giovanni Cagnetta
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Han Liu
- Beijing Normal University, School of Environment, 19 Xinjiekouwai St., Haidian District, Beijing 100875, P. R. China
| | - Kunlun Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Jun Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Bin Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Shubo Deng
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Yujue Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
| | - Gang Yu
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory of Emerging Organic Contaminants Control (BKLEOCC), School of Environment, POPs Research Center, Tsinghua University, Beijing 100084, P. R. China
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Martineau C, Allix M, Suchomel MR, Porcher F, Vivet F, Legein C, Body M, Massiot D, Taulelle F, Fayon F. Structure determination of Ba5AlF13 by coupling electron, synchrotron and neutron powder diffraction, solid-state NMR and ab initio calculations. Dalton Trans 2016; 45:15565-15574. [DOI: 10.1039/c6dt02454h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The structure and dynamics of Ba5AlF13 are resolved by combining complementary information from powder diffraction, 27Al and 19F ultra-fast MAS NMR and DFT calculations.
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Affiliation(s)
- Charlotte Martineau
- Tectospin
- Institut Lavoisier de Versailles
- CNRS UMR 8180
- Université de Versailles Saint-Quentin en Yvelines
- 78035 Versailles Cedex
| | - Mathieu Allix
- CNRS
- CEMHTI UPR3079
- Université d'Orléans
- F-45071 Orléans
- France
| | | | | | - François Vivet
- CNRS
- CEMHTI UPR3079
- Université d'Orléans
- F-45071 Orléans
- France
| | - Christophe Legein
- Université Bretagne Loire
- Université du Maine
- CNRS UMR 6283
- Institut des Molécules et des Matériaux du Mans
- 72085 Le Mans Cedex 9
| | - Monique Body
- Université Bretagne Loire
- Université du Maine
- CNRS UMR 6283
- Institut des Molécules et des Matériaux du Mans
- 72085 Le Mans Cedex 9
| | | | - Francis Taulelle
- Tectospin
- Institut Lavoisier de Versailles
- CNRS UMR 8180
- Université de Versailles Saint-Quentin en Yvelines
- 78035 Versailles Cedex
| | - Franck Fayon
- CNRS
- CEMHTI UPR3079
- Université d'Orléans
- F-45071 Orléans
- France
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