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Park DS, Rata AD, Dahm RT, Chu K, Gan Y, Maznichenko I, Ostanin S, Trier F, Baik H, Choi WS, Choi CJ, Kim YH, Rees GJ, Gíslason HP, Buczek PA, Mertig I, Ionescu MA, Ernst A, Dörr K, Muralt P, Pryds N. Controlled Electronic and Magnetic Landscape in Self-Assembled Complex Oxide Heterostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300200. [PMID: 37154173 DOI: 10.1002/adma.202300200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/01/2023] [Indexed: 05/10/2023]
Abstract
Complex oxide heterointerfaces contain a rich playground of novel physical properties and functionalities, which give rise to emerging technologies. Among designing and controlling the functional properties of complex oxide film heterostructures, vertically aligned nanostructure (VAN) films using a self-assembling bottom-up deposition method presents great promise in terms of structural flexibility and property tunability. Here, the bottom-up self-assembly is extended to a new approach using a mixture containing a 2Dlayer-by-layer film growth, followed by a 3D VAN film growth. In this work, the two-phase nanocomposite thin films are based on LaAlO3 :LaBO3 , grown on a lattice-mismatched SrTiO3001 (001) single crystal. The 2D-to-3D transient structural assembly is primarily controlled by the composition ratio, leading to the coexistence of multiple interfacial properties, 2D electron gas, and magnetic anisotropy. This approach provides multidimensional film heterostructures which enrich the emergent phenomena for multifunctional applications.
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Affiliation(s)
- Dae-Sung Park
- Institute of Materials, Swiss Federal Institute of Technology-EPFL, Lausanne, 1015, Switzerland
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs Lyngby, DK-2800, Denmark
- Institute of Electrical and Micro Engineering, Swiss Federal Institute of Technology-EPFL, Lausanne, 1015, Switzerland
| | - Aurora Diana Rata
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099, Halle, Germany
| | - Rasmus Tindal Dahm
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs Lyngby, DK-2800, Denmark
| | - Kanghyun Chu
- Institute of Materials, Swiss Federal Institute of Technology-EPFL, Lausanne, 1015, Switzerland
| | - Yulin Gan
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Igor Maznichenko
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099, Halle, Germany
| | - Sergey Ostanin
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099, Halle, Germany
| | - Felix Trier
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs Lyngby, DK-2800, Denmark
| | - Hionsuck Baik
- Korea Basic Science Institute, Seoul, 02841, Republic of Korea
| | - Woo Seok Choi
- Department of Physics, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Chel-Jong Choi
- School of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonju, 54596, Republic of Korea
| | - Young Heon Kim
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Gregory Jon Rees
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | | | - Paweł Adam Buczek
- Department of Engineering and Computer Sciences, Hamburg University of Applied Sciences, 20099, Hamburg, Germany
| | - Ingrid Mertig
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099, Halle, Germany
| | - Mihai Adrian Ionescu
- Institute of Electrical and Micro Engineering, Swiss Federal Institute of Technology-EPFL, Lausanne, 1015, Switzerland
| | - Arthur Ernst
- Max-Planck-Institut für Mikrostrukturphysik, 06120, Halle, Germany
- Institute of Theoretical Physics, Johannes Kepler University, Linz, 4040, Austria
| | - Kathrin Dörr
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099, Halle, Germany
| | - Paul Muralt
- Institute of Materials, Swiss Federal Institute of Technology-EPFL, Lausanne, 1015, Switzerland
| | - Nini Pryds
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs Lyngby, DK-2800, Denmark
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2
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Gupta A, Ondry JC, Lin K, Chen Y, Hudson MH, Chen M, Schaller RD, Rossini AJ, Rabani E, Talapin DV. Composition-Defined Optical Properties and the Direct-to-Indirect Transition in Core-Shell In 1-xGa xP/ZnS Colloidal Quantum Dots. J Am Chem Soc 2023. [PMID: 37466972 PMCID: PMC10401719 DOI: 10.1021/jacs.3c02709] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Semiconductors are commonly divided into materials with direct or indirect band gaps based on the relative positions of the top of the valence band and the bottom of the conduction band in crystal momentum (k) space. It has, however, been debated if k is a useful quantum number to describe the band structure in quantum-confined nanocrystalline systems, which blur the distinction between direct and indirect gap semiconductors. In bulk III-V semiconductor alloys like In1-xGaxP, the band structure can be tuned continuously from the direct- to indirect-gap by changing the value of x. The effect of strong quantum confinement on the direct-to-indirect transition in this system has yet to be established because high-quality colloidal nanocrystal samples have remained inaccessible. Herein, we report one of the first systematic studies of ternary III-V nanocrystals by utilizing an optimized molten-salt In-to-Ga cation exchange protocol to yield bright In1-xGaxP/ZnS core-shell particles with photoluminescence quantum yields exceeding 80%. We performed two-dimensional solid-state NMR studies to assess the alloy homogeneity and the extent of surface oxidation in In1-xGaxP cores. The radiative decay lifetime for In1-xGaxP/ZnS monotonically increases with higher gallium content. Transient absorption studies on In1-xGaxP/ZnS nanocrystals demonstrate signatures of direct- and indirect-like behavior based on the presence or absence, respectively, of excitonic bleach features. Atomistic electronic structure calculations based on the semi-empirical pseudopotential model are used to calculate absorption spectra and radiative lifetimes and evaluate band-edge degeneracy; the resulting calculated electronic properties are consistent with experimental observations. By studying photoluminescence characteristics at elevated temperatures, we demonstrate that a reduced lattice mismatch at the III-V/II-VI core-shell interface can enhance the thermal stability of emission. These insights establish cation exchange in molten inorganic salts as a viable synthetic route to nontoxic, high-quality In1-xGaxP/ZnS QD emitters with desirable optoelectronic properties.
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Affiliation(s)
- Aritrajit Gupta
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Justin C Ondry
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Kailai Lin
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yunhua Chen
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Margaret H Hudson
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Min Chen
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Richard D Schaller
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Aaron J Rossini
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Eran Rabani
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- The Raymond and Beverly Sackler Center of Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dmitri V Talapin
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
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3
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Smith ME. Recent progress in solid-state NMR of spin-½ low-γ nuclei applied to inorganic materials. Phys Chem Chem Phys 2022; 25:26-47. [PMID: 36421944 DOI: 10.1039/d2cp03663k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Significant technological and methodological advances in solid-state NMR techniques in recent years have increased the accessibility of nuclei with small magnetic moments (hereafter termed low-γ) underpinning an increased range of applications of such nuclei. These methodological advances are briefly summarised, including improvements in hardware and pulse sequences, as well as important developments in associated computational methods (e.g. first principles calculations, spectral simulation). Here spin-½ nuclei are the focus, with this Perspective complementing a very recent review that looked at half-integer spin low-γ quadrupolar nuclei. Reference is made to some of the original reports of such spin-½ nuclei, but recent progress in the relevant methodology and applications to inorganic materials (most within the last 10 years) of these nuclei are the focus. An overview of the current state-of-the-art of studying these nuclei is thereby provided for both NMR spectroscopists and materials researchers.
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Affiliation(s)
- Mark E Smith
- Vice-Chancellor and President's Office and Department of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK. .,Department of Chemistry, Lancaster University, Bailrigg, Lancaster, LA1 4YB, UK.,Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
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4
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Smith ME. Recent progress in solid-state nuclear magnetic resonance of half-integer spin low-γ quadrupolar nuclei applied to inorganic materials. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2021; 59:864-907. [PMID: 33207003 DOI: 10.1002/mrc.5116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 06/11/2023]
Abstract
An overview is presented of recent progress in the solid-state nuclear magnetic resonance (NMR) observation of low-γ nuclei, with a focus on applications to inorganic materials. The technological and methodological advances in the last 20 years, which have underpinned the increased accessibility of low-γ nuclei for study by solid-state NMR techniques, are summarised, including improvements in hardware, pulse sequences and associated computational methods (e.g., first principles calculations and spectral simulation). Some of the key initial observations from inorganic materials of these nuclei are highlighted along with some recent (most within the last 10 years) illustrations of their application to such materials. A summary of other recent reviews of the study of low-γ nuclei by solid-state NMR is provided so that a comprehensive understanding of what has been achieved to date is available.
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Affiliation(s)
- Mark E Smith
- Vice-Chancellor and President's Office and Department of Chemistry, University of Southampton, Southampton, UK
- Department of Chemistry, Lancaster University, Bailrigg, Lancaster, UK
- Department of Physics, University of Warwick, Coventry, UK
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5
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Paterson AL, Liu DJ, Kanbur U, Sadow AD, Perras FA. Observing the three-dimensional dynamics of supported metal complexes. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01241f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dynamics of heterogeneous catalysts are linked to their activity and selectivity but are poorly understood. NMR enables for the determination of high-resolution dynamic structures for such sites and the mapping of accessible conformations.
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Wang Q, Nielsen UG. Applications of solid-state NMR spectroscopy in environmental science. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2020; 110:101698. [PMID: 33130521 DOI: 10.1016/j.ssnmr.2020.101698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Environmental science is an interdisciplinary field, which integrates chemical, physical, and biological sciences to study environmental problems and human impact on the environment. This article highlights the use of solid-state NMR spectroscopy (SSNMR) in studies of environmental processes and remediation with examples from both laboratory studies and samples collected in the field. The contemporary topics presented include soil chemistry, environmental remediation (e.g., heavy metals and radionuclides removal, carbon dioxide mineralization), and phosphorus recovery. SSNMR is a powerful technique, which provides atomic-level information about speciation in complex environmental samples as well as the interactions between pollutants and minerals/organic matter on different environmental interfaces. The challenges in the application of SSNMR in environmental science (e.g., measurement of paramagnetic nuclei and low-gamma nuclei) are also discussed, and perspectives are provided for the future research efforts.
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Affiliation(s)
- Qian Wang
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Ulla Gro Nielsen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.
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7
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Fedoročková A, Sučik G, Plešingerová B, Popovič Ľ, Kovaľaková M, Vavra M. Simplified waste-free process for synthesis of nanoporous compact alumina under technologically advantageous conditions. RSC Adv 2020; 10:32423-32435. [PMID: 35516472 PMCID: PMC9056638 DOI: 10.1039/d0ra06544g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 08/08/2020] [Indexed: 01/28/2023] Open
Abstract
Precipitated ammonium aluminium carbonate hydroxide (NH4Al(OH)2CO3) is a promising precursor for preparation of nanostructured Al2O3. However, the experimental conditions, such as the low concentration of Al3+ salt solution, high temperature and/or pressure, long reaction time, and excessive amount of the (NH4)2CO3 precipitating agent, make this process expensive for large-scale production. Here, we report a simpler and cheaper route to prepare nanostructured alumina by partial neutralisation of a nearly saturated aqueous solution of Al(NO3)3 with (NH4)2CO3 as a base at pH < 4. Synthesis in the acidic region led to formation of a polynuclear aluminium cluster (Al13), which is an important “green” solution precursor for large-area preparation of Al2O3 thin films and nanoparticles. Control of the textural properties of the final alumina product during calcination of the prepared aluminium (oxy)hydroxide gel was accomplished by adding low-solubility aluminium acetate hydroxide (Al(OH)(CH3COO)2) as a seed to the Al(NO3)3 solution before neutralisation. The large Brunauer–Emmett–Teller specific surface area (376 m2 g−1) and narrow pore size distribution (2–20 nm) of the prepared compact alumina suggest that the chelating effect of the acetate ions affects the structures of the forming transition aluminas, and the evolved gases produced by decomposition of Al(OH)(CH3COO)2 and NH4NO3 as a by-product of the reaction during calcination prevent particle agglomeration. Other advantages of the proposed process are its versatility and the ability to obtain high purity materials without producing large amounts of by-products without the need for washing and energy saving by using a low processing temperature, and the possibility of recycling the generated CO2 and NH3 gases as the (NH4)2CO3 reagent. Flow chart of the proposed process for production of nanoporous alumina monoliths.![]()
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Affiliation(s)
- Alena Fedoročková
- Faculty of Materials, Metallurgy and Recycling, Technical University of Košice Letná 9 042 00 Košice Slovakia
| | - Gabriel Sučik
- Faculty of Materials, Metallurgy and Recycling, Technical University of Košice Letná 9 042 00 Košice Slovakia
| | - Beatrice Plešingerová
- Faculty of Materials, Metallurgy and Recycling, Technical University of Košice Letná 9 042 00 Košice Slovakia
| | - Ľuboš Popovič
- Faculty of Materials, Metallurgy and Recycling, Technical University of Košice Letná 9 042 00 Košice Slovakia
| | - Mária Kovaľaková
- Faculty of Electrical Engineering and Informatics, Technical University of Košice Letná 9 042 00 Košice Slovakia
| | - Martin Vavra
- Faculty of Science, Pavol Jozef Šafárik University in Košice Šrobárova 2 041 54 Košice Slovakia
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8
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Experimental and theoretical study of deactivated HDT catalysts by Si species deposited on their surfaces: Models proposition, structural and thermodynamic analysis. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Barbosa ACDA, Fonseca CG, Wypych F, Leitão AA. Structural analysis of dehydrated gibbsite-based layered double hydroxides Li–Al–X (X = F −, Cl −, Br −, I −, OH −, NO 3−, CO 32−, and SO 42−) by DFT calculations. NEW J CHEM 2020. [DOI: 10.1039/c9nj06454k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ab initio calculations were performed in order to discuss the structural modifications derived from anion exchange in Li–Al–Cl LDH, a compound formed by the treatment of gibbsite with aqueous lithium chloride (LiCl).
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Affiliation(s)
| | - Carla G. Fonseca
- Chemistry Department
- Federal University of Juiz de Fora
- Juiz de Fora – MG
- Brazil
| | - Fernando Wypych
- CEPESQ – Research Center in Applied Chemistry – Chemistry Department
- Federal University of Paraná
- Curitiba – PR
- Brazil
| | - Alexandre A. Leitão
- Chemistry Department
- Federal University of Juiz de Fora
- Juiz de Fora – MG
- Brazil
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10
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Hughes CE, Walkley B, Gardner LJ, Walling SA, Bernal SA, Iuga D, Provis JL, Harris KDM. Exploiting in-situ solid-state NMR spectroscopy to probe the early stages of hydration of calcium aluminate cement. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019. [PMID: 30772677 DOI: 10.1016/j.mtadv.2019.100007] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report a high-field in-situ solid-state NMR study of the hydration of CaAl2O4 (the most important hydraulic phase in calcium aluminate cement), based on time-resolved measurements of solid-state 27Al NMR spectra during the early stages of the reaction. A variant of the CLASSIC NMR methodology, involving alternate recording of direct-excitation and MQMAS 27Al NMR spectra, was used to monitor the 27Al species present in both the solid and liquid phases as a function of time. Our results provide quantitative information on the changes in the relative amounts of 27Al sites with tetrahedral coordination (the anhydrous reactant phase) and octahedral coordination (the hydrated product phases) as a function of time, and reveal significantly different kinetic and mechanistic behaviour of the hydration reaction at the different temperatures (20 °C and 60 °C) studied.
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Affiliation(s)
- Colan E Hughes
- School of Chemistry, Cardiff University, Park Place, Cardiff, Wales, CF10 3AT, UK
| | - Brant Walkley
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
| | - Laura J Gardner
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
| | - Samuel A Walling
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
| | - Susan A Bernal
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK; School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Dinu Iuga
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
| | - John L Provis
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK.
| | - Kenneth D M Harris
- School of Chemistry, Cardiff University, Park Place, Cardiff, Wales, CF10 3AT, UK.
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11
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Jensen ND, Duong NT, Bolanz R, Nishiyama Y, Rasmussen CA, Gottlicher J, Steininger R, Prevot V, Nielsen UG. Synthesis and Structural Characterization of a Pure ZnAl 4(OH) 12(SO 4)·2.6H 2O Layered Double Hydroxide. Inorg Chem 2019; 58:6114-6122. [PMID: 30986049 DOI: 10.1021/acs.inorgchem.9b00390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The phase purity of a series of ZnAl4(OH)12SO4· nH2O layered double hydroxides (ZnAl4-LDH) obtained from a reaction of bayerite (Al(OH)3) with an excess of zinc(II) sulfate under hydrothermal conditions was investigated as a function of the reaction temperature, the duration of the hydrothermal treatment, and the zinc(II) concentration. The product quality, i.e., crystalline impurities, Al impurities, and bulk Zn:Al ratio, were assessed by powder X-ray diffraction (PXRD), 27Al MAS NMR, and elemental analysis. Structural characterization of a stoichiometric ZnAl4-LDH (120 °C, 9 days, and 2.8 M Zn(II)) showed a well-defined structure of the metal ion layer as evidenced by a single, well-defined Zn environment: i.e., no Zn substitution on the Al sites according to Zn k-edge EXAFS and PXRD. Furthermore, nearly all of the 12 different 1H atoms in the -OH groups and 4 27Al resonances could be assigned using 1H,27Al NMR correlation experiments recorded with ultrafast MAS. The interlayer water content is variable on the basis of thermogravimetric analysis and changes in the 1H MAS NMR spectra with temperature. A composition of ZnAl4(OH)12(SO4)·2.6H2O was obtained from a combination of these techniques and confirmed that ZnAl4-LDH is isostructural with the mineral nickelalumite (NiAl4(OH)12SO4·3H2O).
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Affiliation(s)
- Nicholai Daugaard Jensen
- Department of Physics, Chemistry, and Pharmacy , University of Southern Denmark , Campusvej 55 , 5230 Odense M , Denmark
| | - Nghia Tuan Duong
- RIKEN-JEOL Collaboration Center , RIKEN , Yokohama , Kanagawa 230-0045 , Japan
| | - Ralph Bolanz
- Friedrich-Schiller-University , Institute of Geosciences , Carl-Zeiss-Promenade 10 , 07745 Jena , Germany
| | - Yusuke Nishiyama
- RIKEN-JEOL Collaboration Center , RIKEN , Yokohama , Kanagawa 230-0045 , Japan.,NMR Science and Development Division , RIKEN SPring-8 Center , Tsurumi, Yokohama , Kanagawa 230-0045 , Japan.,JEOL RESONANCE Inc. , Musashino , Akisma, Tokyo 186-8558 , Japan
| | - Camilla Aistrup Rasmussen
- Department of Physics, Chemistry, and Pharmacy , University of Southern Denmark , Campusvej 55 , 5230 Odense M , Denmark
| | - Jorg Gottlicher
- Karlsruhe Institute of Technology , Institute for Photon Science and Synchrotron Radiation (IPS) , Hermann-von-Helmholtz Platz 1 , D-79344 Eggenstein-Leopoldshafen , Germany
| | - Ralph Steininger
- Karlsruhe Institute of Technology , Institute for Photon Science and Synchrotron Radiation (IPS) , Hermann-von-Helmholtz Platz 1 , D-79344 Eggenstein-Leopoldshafen , Germany
| | - Vanessa Prevot
- Université Clermont Auvergne , CNRS, SIGMA Clermont, ICCF , F-63000 Clermont-Ferrand , France
| | - Ulla Gro Nielsen
- Department of Physics, Chemistry, and Pharmacy , University of Southern Denmark , Campusvej 55 , 5230 Odense M , Denmark
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12
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Ghassemi N, Lu X, Tian Y, Conant E, Yan Y, Zhou X, Ross JH. Structure Change and Rattling Dynamics in Cu 12Sb 4S 13 Tetrahedrite: an NMR Study. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36010-36017. [PMID: 30251531 DOI: 10.1021/acsami.8b13646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present a 63Cu and 65Cu NMR study of Cu12Sb4S13, the basis for tetrahedrite thermoelectric materials. In addition to electronic changes observed at the Tc = 88 K metal-insulator transition, we find that locally there are significant structural changes occurring as the temperature extends above Tc, which we associate with Cu atom displacements away from symmetry positions. Spin-lattice relaxation rates (1/ T1) are dominated by a quadrupolar process indicating anharmonic vibrational dynamics both above and below Tc. We used a quasiharmonic approximation for localized anharmonic oscillators to analyze the impact of Cu rattling. The results demonstrate that Cu-atom rattling dynamics extends unimpeded in the distorted structural configuration below Tc and provide a direct measure of the anharmonic potential well.
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Affiliation(s)
| | - Xu Lu
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
| | | | | | - Yanci Yan
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
| | - Xiaoyuan Zhou
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
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13
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Chen S, Lucier BEG, Luo W, Xie X, Feng K, Chan H, Terskikh VV, Sun X, Sham TK, Workentin MS, Huang Y. Loading across the Periodic Table: Introducing 14 Different Metal Ions To Enhance Metal-Organic Framework Performance. ACS APPLIED MATERIALS & INTERFACES 2018; 10:30296-30305. [PMID: 30124282 DOI: 10.1021/acsami.8b08496] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Loading metal guests within metal-organic frameworks (MOFs) via secondary functional groups is a promising route for introducing or enhancing MOF performance in various applications. In this work, 14 metal ions (Li+, Na+, K+, Mg2+, Ca2+, Ba2+, Zn2+, Co2+, Mn2+, Ag+, Cd2+, La3+, In3+, and Pb2+) have been successfully introduced within the MIL-121 MOF using a cost-efficient route involving free carboxylic groups on the linker. The local and long-range structure of the metal-loaded MOFs is characterized using multinuclear solid-state NMR and X-ray diffraction methods. Li/Mg/Ca-loaded MIL-121 and Ag nanoparticle-loaded MIL-121 exhibit enhanced H2 and CO2 adsorption; Ag nanoparticle-loaded MIL-121 also demonstrates remarkable catalytic activity in the reduction of 4-nitrophenol.
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Affiliation(s)
- Shoushun Chen
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Bryan E G Lucier
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Wilson Luo
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Xinkai Xie
- Institute of Functional Nano & Soft Materials Laboratory (FUNSOM) & Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices , Soochow University , Jiangsu 215123 , P. R. China
| | - Kun Feng
- Institute of Functional Nano & Soft Materials Laboratory (FUNSOM) & Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices , Soochow University , Jiangsu 215123 , P. R. China
| | - Hendrick Chan
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Victor V Terskikh
- Department of Chemistry , University of Ottawa , Ottawa , Ontario K1N 6N5 , Canada
| | - Xuhui Sun
- Institute of Functional Nano & Soft Materials Laboratory (FUNSOM) & Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices , Soochow University , Jiangsu 215123 , P. R. China
| | - Tsun-Kong Sham
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Mark S Workentin
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
| | - Yining Huang
- Department of Chemistry , University of Western Ontario , London , Ontario N6A 5B7 , Canada
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14
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Aliev AE, Bartók AP, Yates JR. Tin chemical shift anisotropy in tin dioxide: On ambiguity of CSA asymmetry derived from MAS spectra. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2018; 89:1-10. [PMID: 29202302 DOI: 10.1016/j.ssnmr.2017.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
Two different axial symmetries of the 119Sn chemical shift anisotropy (CSA) in tin dioxide with the asymmetry parameter (η) of 0 and 0.27 were reported previously based on the analysis of MAS NMR spectra. By analyzing the static powder pattern, we show that the 119Sn CSA is axially symmetric. A nearly axial symmetry and the principal axis system of the 119Sn chemical shift tensor in SnO2 were deduced from periodic scalar-relativistic density functional theory (DFT) calculations of NMR parameters. The implications of fast small-angle motions on CSA parameters were also considered, which could potentially lead to a CSA symmetry in disagreement with a crystal symmetry. Our analysis of experimental spectra using spectral simulations and iterative fittings showed that MAS spectra recorded at relatively high frequencies do not show sufficiently distinct features in order to distinguish CSAs with η ≈ 0 and η ≈ 0.4. The example of SnO2 shows that both the MAS lineshape and spinning sideband analyses may overestimate the η value by as much as ∼0.3 and ∼0.4, respectively. The results confirm that a static powder pattern must be analysed in order to improve the accuracy of the CSA asymmetry measurements. The measurements on SnO2 nanoparticles showed that the asymmetry parameter of the 119Sn CSA increases for nm-sized particles with a larger surface area compared to μm-sized particles. The increase of the η value for tin atoms near the surface in SnO2 was also confirmed by DFT calculations.
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Affiliation(s)
- Abil E Aliev
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Albert P Bartók
- Scientific Computing Department, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Jonathan R Yates
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK
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15
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Hooper TJN, Partridge TA, Rees GJ, Keeble DS, Powell NA, Smith ME, Mikheenko IP, Macaskie LE, Bishop PT, Hanna JV. Direct solid state NMR observation of the 105Pd nucleus in inorganic compounds and palladium metal systems. Phys Chem Chem Phys 2018; 20:26734-26743. [DOI: 10.1039/c8cp02594k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although 105Pd is a very challenging nucleus for solid state NMR, these initial observations demonstrate its potential for characterising catalytically relevant Pd metal systems.
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Affiliation(s)
| | | | | | - Dean S. Keeble
- Diamond Light Source
- Harwell Science and Innovation Campus
- Didcot
- UK
| | | | | | | | | | | | - John V. Hanna
- Department of Physics
- University of Warwick
- Coventry
- UK
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16
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Seleznyova K, Sergeev NA, Olszewski M, Stępień P, Yagupov SV, Strugatsky MB, Kliava J. Fitting MAS NMR spectra in crystals with local disorder: Czjzek's vs. Maurer's model for 11B and 71Ga in polycrystalline gallium borate. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2017; 85-86:12-18. [PMID: 28342403 DOI: 10.1016/j.ssnmr.2017.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A comparative analysis of the Czjzek's and Maurer's models of the joint distribution density of NMR quadrupole parameters has been carried out in view of their application to account for spectra broadening induced by local disorder in crystals. As an example of such an application, we have considered Magic Angle Spinning NMR of 11B and 71Ga isotopes in polycrystalline gallium borate. Computer simulations carried out using both models unambiguously show that in the case of low local disorder the Maurer's model, in contrast to the Czjzek's model, provides satisfactory fits to experimental NMR spectra.
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Affiliation(s)
- K Seleznyova
- LOMA, UMR 5798 Université de Bordeaux-CNRS, 33405 Talence cedex, France; Physics and Technology Institute, Crimean Federal V.I. Vernadsky University, 295-007 Simferopol, Republic of Crimea
| | - N A Sergeev
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland
| | - M Olszewski
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland
| | - P Stępień
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland
| | - S V Yagupov
- Physics and Technology Institute, Crimean Federal V.I. Vernadsky University, 295-007 Simferopol, Republic of Crimea
| | - M B Strugatsky
- Physics and Technology Institute, Crimean Federal V.I. Vernadsky University, 295-007 Simferopol, Republic of Crimea
| | - J Kliava
- LOMA, UMR 5798 Université de Bordeaux-CNRS, 33405 Talence cedex, France
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17
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Hoffmann K, Hooper T, Zhao H, Kolb U, Murshed M, Fischer M, Lührs H, Nénert G, Kudějová P, Senyshyn A, Schneider H, Hanna J, Gesing T, Fischer R. Crystal chemical characterization of mullite-type aluminum borate compounds. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2016.12.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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19
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20
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Jensen ND, Bjerring M, Nielsen UG. A solid state NMR study of layered double hydroxides intercalated with para-amino salicylate, a tuberculosis drug. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2016; 78:9-15. [PMID: 27376787 DOI: 10.1016/j.ssnmr.2016.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
Para-amino salicylate (PAS), a tuberculosis drug, was intercalated in three different layered double hydroxides (MgAl, ZnAl, and CaAl-LDH) and the samples were studied by multi-nuclear ((1)H, (13)C, and (27)Al) solid state NMR (SSNMR) spectroscopy in combination with powder X-ray diffraction (PXRD), elemental analysis and IR-spectroscopy to gain insight into the bulk and atomic level structure of these LDHs especially with a view to the purity of the LDH-PAS materials and the concentration of impurities. The intercalations of PAS in MgAl-, ZnAl-, and CaAl-LDH's were confirmed by (13)C SSNMR and PXRD. Moreover, (13)C MAS NMR and infrared spectroscopy show that PAS did not decompose during synthesis. Large amounts (20-41%) of amorphous aluminum impurities were detected in the structure using (27)Al single pulse and 3QMAS NMR spectra, which in combination with (1)H single and double quantum experiments also showed that the M(II):Al ratio was higher than predicted from the bulk metal composition of MgAl-PAS and ZnAl-PAS. Moreover, the first high-resolution (1)H SSNMR spectra of a CaAl LDH is reported and assigned using (1)H single and double quantum experiments in combination with (27)Al{(1)H} HETCOR.
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Affiliation(s)
- Nicholai Daugaard Jensen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Morten Bjerring
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), University of Aarhus, Gustav Wiedsvej 14, 8000 Aarhus C, Denmark
| | - Ulla Gro Nielsen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
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21
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Xu J, Sinelnikov R, Huang Y. Capturing Guest Dynamics in Metal-Organic Framework CPO-27-M (M = Mg, Zn) by (2)H Solid-State NMR Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5468-79. [PMID: 27183247 DOI: 10.1021/acs.langmuir.6b00851] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Metal-organic frameworks (MOFs) are promising porous materials for gas separation and storage as well as sensing. In particular, a series of isostructural MOFs with coordinately unsaturated metal centers, namely, CPO-27-M or M-MOF-74 (M = Mg, Zn, Mn, Fe, Ni, Co, Cu), have shown exceptional adsorption capacity and selectivity compared to those of classical MOFs that contain only fully coordinated metal sites. Although it is widely accepted that the interaction between guest molecules and exposed metal centers is responsible for good selectivity and large maximum uptake, the investigation of such guest-metal interaction is very challenging because adsorbed molecules are usually disordered in the pores and undergo rapid thermal motions. (2)H solid-state NMR (SSNMR) spectroscopy is one of the most extensively used techniques for capturing guest dynamics in porous materials. In this work, variable-temperature (2)H wide-line SSNMR experiments were performed on CPO-27-M (M = Mg, Zn) loaded with four prototypical guest molecules: D2O, CD3CN, acetone-d6, and C6D6. The results indicate that different guest molecules possess distinct dynamic behaviors inside the channel of CPO-27-M. For a given guest molecule, its dynamic behavior also depends on the nature of the metal centers. The binding strength of guest molecules is discussed on the basis of the (2)H SSNMR data.
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Affiliation(s)
- Jun Xu
- Department of Chemistry, The University of Western Ontario , London, Ontario N6A 5B7, Canada
| | - Regina Sinelnikov
- Department of Chemistry, The University of Western Ontario , London, Ontario N6A 5B7, Canada
| | - Yining Huang
- Department of Chemistry, The University of Western Ontario , London, Ontario N6A 5B7, Canada
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22
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Vitrification of β-tricalcium phosphate in sodium aluminoborophosphate glass and the effect of Ga3+ substitution. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Seleznyova K, Sergeev NA, Olszewski M, Stępień P, Yagupov SV, Strugatsky MB, Kliava J. (11)B MAS NMR study of Ga1-xFexBO3 mixed crystals. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2015; 70:38-42. [PMID: 26123567 DOI: 10.1016/j.ssnmr.2015.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 06/04/2015] [Accepted: 06/05/2015] [Indexed: 06/04/2023]
Abstract
Mixed iron-gallium borate crystals Ga1-xFexBO3 have been studied by Magic Angle Spinning (MAS) NMR of (11)B isotope. Experimental MAS NMR spectra have been computer simulated using a laboratory-developed code. The quadrupole parameters and isotropic chemical shift for (11)B are consistent with threefold-coordination of boron atoms. A detailed fitting to the experimental NMR spectra reveals the existence of a certain local disorder in Ga1-xFexBO3 crystals.
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Affiliation(s)
- K Seleznyova
- Faculty of Physics, Taurida National V.I. Vernadsky University, 95-007 Simferopol, Crimea, Ukraine; LOMA, UMR 5798 Université de Bordeaux-CNRS, 33405 Talence cedex, France
| | - N A Sergeev
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland.
| | - M Olszewski
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland
| | - P Stępień
- Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland
| | - S V Yagupov
- Faculty of Physics, Taurida National V.I. Vernadsky University, 95-007 Simferopol, Crimea, Ukraine
| | - M B Strugatsky
- Faculty of Physics, Taurida National V.I. Vernadsky University, 95-007 Simferopol, Crimea, Ukraine
| | - J Kliava
- LOMA, UMR 5798 Université de Bordeaux-CNRS, 33405 Talence cedex, France
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24
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D’Elia V, Dong H, Rossini AJ, Widdifield CM, Vummaleti SVC, Minenkov Y, Poater A, Abou-Hamad E, Pelletier JDA, Cavallo L, Emsley L, Basset JM. Cooperative Effect of Monopodal Silica-Supported Niobium Complex Pairs Enhancing Catalytic Cyclic Carbonate Production. J Am Chem Soc 2015; 137:7728-39. [DOI: 10.1021/jacs.5b02872] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Valerio D’Elia
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Hailin Dong
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Aaron J. Rossini
- Centre
de RMN à Très Hauts Champs (CNRS/ENS-Lyon/UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Cory M. Widdifield
- Centre
de RMN à Très Hauts Champs (CNRS/ENS-Lyon/UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Sai V. C. Vummaleti
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Yury Minenkov
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Albert Poater
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
- Institut
de Química Computacional, Department de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Edy Abou-Hamad
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Jérémie D. A. Pelletier
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Lyndon Emsley
- Centre
de RMN à Très Hauts Champs (CNRS/ENS-Lyon/UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Jean-Marie Basset
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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25
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Alvim RS, Miranda CR. First principles characterization of silicate sites in clay surfaces. Phys Chem Chem Phys 2015; 17:4952-60. [DOI: 10.1039/c4cp05447d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydroxyl group chemical environment can differently influence the exposed surface sites in similar aluminosilicate clays through vdW interactions in siloxane cavities.
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Affiliation(s)
- Raphael S. Alvim
- NanoPetro Research Group
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Caetano R. Miranda
- NanoPetro Research Group
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
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26
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Mironenko RM, Belskaya OB, Talsi VP, Likholobov VA. Quadrupolar magic angle spinning NMR spectra fitted using the Pearson IV function. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2014; 63-64:37-41. [PMID: 25454293 DOI: 10.1016/j.ssnmr.2014.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/27/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
The Pearson IV function was used to fit the asymmetric solid-state (27)Al NMR spectra of alumina based catalysts. A high convergence (correlation coefficient is no less than 0.997) between experimental and simulated spectra was achieved. The decomposition of the (27)Al NMR spectra of zinc/aluminum mixed oxides with different Zn/Al molar ratio revealed an increased fraction (6-9%) of pentacoordinated aluminum atoms in these oxides as compared to γ-Al2O3. As the Zn/Al ratio is raised, the fraction of [AlO6] octahedral units decreases, while the fraction of [AlO4] tetrahedra increases.
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Affiliation(s)
- Roman M Mironenko
- Institute of Hydrocarbons Processing, Siberian Branch of Russian Academy of Sciences, Neftezavodskaya st., 54, 644040 Omsk, Russia; Omsk F.M. Dostoevsky State University, pr. Mira, 55a, 644077 Omsk, Russia.
| | - Olga B Belskaya
- Institute of Hydrocarbons Processing, Siberian Branch of Russian Academy of Sciences, Neftezavodskaya st., 54, 644040 Omsk, Russia; Omsk State Technical University, pr. Mira, 11, 644050 Omsk, Russia
| | - Valentin P Talsi
- Institute of Hydrocarbons Processing, Siberian Branch of Russian Academy of Sciences, Neftezavodskaya st., 54, 644040 Omsk, Russia
| | - Vladimir A Likholobov
- Institute of Hydrocarbons Processing, Siberian Branch of Russian Academy of Sciences, Neftezavodskaya st., 54, 644040 Omsk, Russia; Omsk Scientific Centre, Siberian Branch of Russian Academy of Sciences, pr. Marksa, 15, 644024 Omsk, Russia
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27
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Cation substitution in β-tricalcium phosphate investigated using multi-nuclear, solid-state NMR. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2013.10.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Hamaed H, Johnston KE, Cooper BFT, Terskikh VV, Ye E, Macdonald CLB, Arnold DC, Schurko RW. A115In solid-state NMR study of low oxidation-state indium complexes. Chem Sci 2014. [DOI: 10.1039/c3sc52809j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Ferreira AR, Küçükbenli E, de Gironcoli S, Souza WF, Chiaro SSX, Konstantinova E, Leitão AA. Structural models of activated γ-alumina surfaces revisited: Thermodynamics, NMR and IR spectroscopies from ab initio calculations. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.06.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Bräuniger T, Jansen M. Solid-state NMR Spectroscopy of Quadrupolar Nuclei in Inorganic Chemistry. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300102] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Smith JM, King SP, Barney ER, Hanna JV, Newport RJ, Pickup DM. Structural study of Al2O3-Na2O-CaO-P2O5 bioactive glasses as a function of aluminium content. J Chem Phys 2013; 138:034501. [DOI: 10.1063/1.4774330] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Pimentel HR, Aguiar DL, San Gil RA, Souza EF, Ferreira AR, Leitão AA, Alencastro RB, Menezes SM, Chiaro SS. 17O MAS NMR and first principles calculations of ZrO2 polymorphs. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2012.10.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Laurencin D, Smith ME. Development of (43)Ca solid state NMR spectroscopy as a probe of local structure in inorganic and molecular materials. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2013; 68:1-40. [PMID: 23398971 DOI: 10.1016/j.pnmrs.2012.05.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 05/10/2012] [Indexed: 06/01/2023]
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34
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Feland BC, Bernard GM, Wasylishen RE. A solid-state NMR investigation of the colossal expansion material, Ag3Co(CN)6. CAN J CHEM 2012. [DOI: 10.1139/v2012-072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Presented here is a solid-state NMR investigation of the so-called “colossal expansion” material, Ag3Co(CN)6, a compound that exhibits some of the largest positive and negative thermal expansion properties reported. This study explores the 13C, 15N, and 59Co NMR properties of this material at room temperature and at variable temperatures with the goal of probing the effects of this colossal expansion behaviour on these properties. We found that the flexible nature of the crystal framework leads to a distribution of electric field gradients, and that, oddly enough, no strong correlation is observed between the NMR parameters of Ag3Co(CN)6 and its colossal expansion nature. The 59Co isotropic chemical shift increased and the 59Co nuclear quadrupolar coupling constant decreased with increasing temperature, but neither of these relationships were extraordinary when compared to other octahedral Co(III) complexes. The link between the colossal expansion and the NMR properties of Ag3Co(CN)6 may be the distribution of lattice parameters and hence unusually broad features in the 59Co NMR spectra. The high order of symmetry at the cobalt site resulted in a small quadrupolar coupling constant less than 1 MHz in magnitude. We also observed a |1J(107/109Ag,15N)| value of 96 Hz, the largest 107/109Ag–15N coupling constant reported to date.
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Affiliation(s)
- Brett C. Feland
- Department of Chemistry, University of Alberta, 11227 SK Drive N.W., Edmonton, AB T6G 2G2, Canada
| | - Guy M. Bernard
- Department of Chemistry, University of Alberta, 11227 SK Drive N.W., Edmonton, AB T6G 2G2, Canada
| | - Roderick E. Wasylishen
- Department of Chemistry, University of Alberta, 11227 SK Drive N.W., Edmonton, AB T6G 2G2, Canada
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35
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Bonhomme C, Gervais C, Folliet N, Pourpoint F, Coelho Diogo C, Lao J, Jallot E, Lacroix J, Nedelec JM, Iuga D, Hanna JV, Smith ME, Xiang Y, Du J, Laurencin D. 87Sr Solid-State NMR as a Structurally Sensitive Tool for the Investigation of Materials: Antiosteoporotic Pharmaceuticals and Bioactive Glasses. J Am Chem Soc 2012; 134:12611-28. [DOI: 10.1021/ja303505g] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Christian Bonhomme
- Laboratoire Chimie de la Matière
Condensée de Paris, UMR CNRS 7574, UPMC Université Paris 06, Collège de France, 11 place Marcelin
Berthelot, 75231 Paris Cedex 05, France
| | - Christel Gervais
- Laboratoire Chimie de la Matière
Condensée de Paris, UMR CNRS 7574, UPMC Université Paris 06, Collège de France, 11 place Marcelin
Berthelot, 75231 Paris Cedex 05, France
| | - Nicolas Folliet
- Laboratoire Chimie de la Matière
Condensée de Paris, UMR CNRS 7574, UPMC Université Paris 06, Collège de France, 11 place Marcelin
Berthelot, 75231 Paris Cedex 05, France
| | - Frédérique Pourpoint
- Laboratoire Chimie de la Matière
Condensée de Paris, UMR CNRS 7574, UPMC Université Paris 06, Collège de France, 11 place Marcelin
Berthelot, 75231 Paris Cedex 05, France
| | - Cristina Coelho Diogo
- IMPC, Institut des Matériaux
de Paris Centre, FR2482, UPMC Université Paris 06, Collège de France, 11 place Marcelin Berthelot,
75231 Paris Cedex 05, France
| | - Jonathan Lao
- Clermont Université, Université
Blaise Pascal, CNRS/IN2P3, Laboratoire de Physique
Corpusculaire, BP 10448, 63000 Clermont-Ferrand, France
| | - Edouard Jallot
- Clermont Université, Université
Blaise Pascal, CNRS/IN2P3, Laboratoire de Physique
Corpusculaire, BP 10448, 63000 Clermont-Ferrand, France
| | - Joséphine Lacroix
- Clermont Université, Université
Blaise Pascal, CNRS/IN2P3, Laboratoire de Physique
Corpusculaire, BP 10448, 63000 Clermont-Ferrand, France
| | - Jean-Marie Nedelec
- Clermont Université, ENSCCF, ICCF, BP 10448, F-63000 Clermont-Ferrand, France
- CNRS, UMR
6296, ICCF, F-63177 Aubière
| | - Dinu Iuga
- Department of Physics, University of Warwick, CV4 7AL Coventry, U.K
| | - John V. Hanna
- Department of Physics, University of Warwick, CV4 7AL Coventry, U.K
| | - Mark E. Smith
- Department of Physics, University of Warwick, CV4 7AL Coventry, U.K
- Vice-Chancellor’s Office,
University House, Lancaster University,
LA1 4YW, Lancaster, U.K
| | - Ye Xiang
- Department
of Materials Science and
Engineering, CASCaM, University of North Texas, Denton, Texas 76203, United States
| | - Jincheng Du
- Department
of Materials Science and
Engineering, CASCaM, University of North Texas, Denton, Texas 76203, United States
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier,
UMR 5253, CNRS UM2 UM1 ENSCM, CC 1701 Université de Montpellier 2, Place E. Bataillon, 34095 Montpellier
cedex 5, France
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36
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Perras FA, Widdifield CM, Bryce DL. QUEST-QUadrupolar Exact SofTware: a fast graphical program for the exact simulation of NMR and NQR spectra for quadrupolar nuclei. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2012; 45-46:36-44. [PMID: 22763585 DOI: 10.1016/j.ssnmr.2012.05.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 05/15/2012] [Accepted: 05/16/2012] [Indexed: 05/28/2023]
Abstract
We present a new program for the exact simulation of solid-state NMR spectra of quadrupolar nuclei in stationary powdered samples which employs diagonalization of the combined Zeeman-quadrupolar Hamiltonian. The program, which we call QUEST (QUadrupolar Exact SofTware), can simulate NMR spectra over the full regime of Larmor and quadrupolar frequency ratios, which encompasses scenarios ranging from high-field NMR to nuclear quadrupole resonance (NQR, where the Larmor frequency is zero) and does not make use of approximations when treating the quadrupolar interaction. With the use of the fast powder averaging scheme of Alderman, Solum, and Grant, exact NMR spectral simulations are only marginally slower than the second-order perturbation theory counterpart. The program, which uses a graphical user interface, also incorporates chemical shift anisotropy and non-coincident chemical shift and quadrupolar tensor frames. The program is validated against newly-acquired experimental data through several examples including: the low-field (79/81)Br NMR spectra of CaBr(2), the (14)N overtone NMR spectrum of glycine, the (187)Re NQR spectra of Re(2)(CO)(10), and lastly the (127)I overtone NQR spectrum of SrI(2), which, to the best of our knowledge, represents the first direct acquisition of an overtone NQR spectrum for a powdered sample.
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Affiliation(s)
- Frédéric A Perras
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario, Canada
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37
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Kiani A, Lakhkar NJ, Salih V, Smith ME, Hanna JV, Newport RJ, Pickup DM, Knowles JC. Titanium-containing bioactive phosphate glasses. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:1352-1375. [PMID: 22349246 DOI: 10.1098/rsta.2011.0276] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The use of biomaterials has revolutionized the biomedical field and has received substantial attention in the last two decades. Among the various types of biomaterials, phosphate glasses have generated great interest on account of their remarkable bioactivity and favourable physical properties for various biomedical applications relating to both hard and soft tissue regeneration. This review paper focuses mainly on the development of titanium-containing phosphate-based glasses and presents an overview of the structural and physical properties. The effect of titanium incorporation on the glassy network is to introduce favourable properties. The biocompatibility of these glasses is described along with recent developments in processing methodologies, and the potential of Ti-containing phosphate-based glasses as a bone substitute material is explored.
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Affiliation(s)
- A Kiani
- Division of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, 256 Gray's Inn Road, London WC1X 8LD, UK
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38
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Martin RA, Twyman HL, Rees GJ, Barney ER, Moss RM, Smith JM, Hill RG, Cibin G, Charpentier T, Smith ME, Hanna JV, Newport RJ. An examination of the calcium and strontium site distribution in bioactive glasses through isomorphic neutron diffraction, X-ray diffraction, EXAFS and multinuclear solid state NMR. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33058j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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39
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Kiani A, Hanna JV, King SP, Rees GJ, Smith ME, Roohpour N, Salih V, Knowles JC. Structural characterization and physical properties of P2O5-CaO-Na2O-TiO2 glasses by Fourier transform infrared, Raman and solid-state magic angle spinning nuclear magnetic resonance spectroscopies. Acta Biomater 2012; 8:333-40. [PMID: 21930253 DOI: 10.1016/j.actbio.2011.08.025] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 08/22/2011] [Accepted: 08/26/2011] [Indexed: 11/17/2022]
Abstract
Phosphate-based glasses have been investigated for tissue engineering applications. This study details the properties and structural characterization of titanium ultra-phosphate glasses in the 55(P(2)O(5))-30(CaO)-(25-x)(Na(2)O)-x(TiO(2)) (0≤x≤5) system, which have been prepared via melt-quenching techniques. Structural characterization was achieved by a combination of X-ray diffraction (XRD), and solid-state nuclear magnetic resonance, Raman and Fourier transform infrared spectroscopies. Physical properties were also investigated using density, degradation and ion release studies; additionally, differential thermal analysis was used for thermal analysis of these glasses. The results show that with the addition of TiO(2) the density and glass transition temperature increased whereas the degradation and ion release properties are decreased. From XRD data, TiP(2)O(7) and CaP(2)O(6) were detected in 3 and 5 mol.% TiO(2)-containing glasses. Magic angle spinning nuclear magnetic resonance results confirmed that as TiO(2) is incorporated into the glass; the amount of Q(3) increases as the amount of Q(2) consequently decreases, indicating increasing polymerization of the phosphate network. Spectroscopy results also showed that the local structure of glasses changes with increasing TiO(2) content. As TiO(2) is incorporated into the glass, the phosphate connectivity increases, indicating that the addition of TiO(2) content correlates unequivocally with an increase in glass stability.
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Affiliation(s)
- Azadeh Kiani
- Division of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, London, UK
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40
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Bak M, Rasmussen JT, Nielsen NC. SIMPSON - an important driver for numerical simulations in solid-state NMR spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2011; 213:401-403. [PMID: 21903437 DOI: 10.1016/j.jmr.2011.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present a historical recollection on the development of the software package SIMPSON (SIMulation Package for SOlid-state Nmr). This covers a brief description of the underlying ideas and events leading to creation of SIMPSON and numerous auxiliary programs as well as comments on its impact on the development and application of solid-state NMR in research laboratories world-wide.
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Affiliation(s)
- Mads Bak
- Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Denmark
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41
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Spencer L, Coomes E, Ye E, Terskikh V, Ramzy A, Thangadurai V, Goward GR. Structural analysis of lanthanum-containing battery materials using 139La solid-state NMR. CAN J CHEM 2011. [DOI: 10.1139/v11-049] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
139La solid-state NMR spectra, acquired at 21.1 and 11.7 T, have been used to evaluate the structural properties of the lithium ion battery materials, La32Li16Fe6.4O67 and Li3xLa2/3–xTiO3. In particular, atomic-level disorder in the second coordination sphere environment of lanthanum in these materials has been indicated by the observation of a distribution in the asymmetry parameters and the quadrupolar coupling constants derived from experimental NMR spectra, and supported by theoretical calculations. For comparison, 139La NMR has been obtained for the two model compounds La2O3 and LaNbO4, in which there is no atomic-level disorder. Quadrupolar coupling constants in the range of 17 to 59 MHz have been measured, and these values are supported by previous work as well as theoretical predictions performed in CASTEP. It has been shown that 139La NMR is a useful tool for the structural analysis of lithium ion battery materials, and when combined with 7Li MAS NMR and powder X-ray diffraction, can be used to determine the structure of complex solid-state electrolyte and electrode materials.
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Affiliation(s)
- Leigh Spencer
- Department of Chemistry and Brockhouse Institute for Materials Research, McMaster University, 1280 Main St. W. Hamilton, ON L8S 4M1, Canada
| | - Eric Coomes
- Department of Chemistry and Brockhouse Institute for Materials Research, McMaster University, 1280 Main St. W. Hamilton, ON L8S 4M1, Canada
| | - Eric Ye
- Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Victor Terskikh
- Steacie Institute of Molecular Sciences, National Research Council Canada, Ottawa, 1200 Montreal Road, M-40, Ottawa, ON K1A 0R6, Canada
| | - Adam Ramzy
- Department of Chemistry, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada
| | - Venkataraman Thangadurai
- Department of Chemistry, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada
| | - Gillian R. Goward
- Department of Chemistry and Brockhouse Institute for Materials Research, McMaster University, 1280 Main St. W. Hamilton, ON L8S 4M1, Canada
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42
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Grimminck DLAG, Polman BJW, Kentgens APM, Meerts WL. EASY-GOING deconvolution: combining accurate simulation and evolutionary algorithms for fast deconvolution of solid-state quadrupolar NMR spectra. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2011; 211:114-120. [PMID: 21602068 DOI: 10.1016/j.jmr.2011.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 04/21/2011] [Accepted: 04/27/2011] [Indexed: 05/30/2023]
Abstract
A fast and accurate fit program is presented for deconvolution of one-dimensional solid-state quadrupolar NMR spectra of powdered materials. Computational costs of the synthesis of theoretical spectra are reduced by the use of libraries containing simulated time/frequency domain data. These libraries are calculated once and with the use of second-party simulation software readily available in the NMR community, to ensure a maximum flexibility and accuracy with respect to experimental conditions. EASY-GOING deconvolution (EGdeconv) is equipped with evolutionary algorithms that provide robust many-parameter fitting and offers efficient parallellised computing. The program supports quantification of relative chemical site abundances and (dis)order in the solid-state by incorporation of (extended) Czjzek and order parameter models. To illustrate EGdeconv's current capabilities, we provide three case studies. Given the program's simple concept it allows a straightforward extension to include other NMR interactions. The program is available as is for 64-bit Linux operating systems.
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Affiliation(s)
- Dennis L A G Grimminck
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands.
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Howes AP, Vedishcheva NM, Samoson A, Hanna JV, Smith ME, Holland D, Dupree R. Boron environments in Pyrex® glass—a high resolution, Double-Rotation NMR and thermodynamic modelling study. Phys Chem Chem Phys 2011; 13:11919-28. [DOI: 10.1039/c1cp20771g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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44
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Xu J, Zhu P, Gan Z, Sahar N, Tecklenburg M, Morris MD, Kohn DH, Ramamoorthy A. Natural-abundance 43Ca solid-state NMR spectroscopy of bone. J Am Chem Soc 2010; 132:11504-9. [PMID: 20681578 DOI: 10.1021/ja101961x] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Structural information about the coordination environment of calcium present in bone is highly valuable in understanding the role of calcium in bone formation, biomineralization, and bone diseases like osteoporosis. While a high-resolution structural study on bone has been considered to be extremely challenging, NMR studies on model compounds and bone minerals have provided valuable insight into the structure of bone. Particularly, the recent demonstration of (43)Ca solid-state NMR experiments on model compounds is an important advance in this field. However, application of (43)Ca NMR is hampered due to the low natural-abundance and poor sensitivity of (43)Ca. In this study, we report the first demonstration of natural-abundance (43)Ca magic angle spinning (MAS) NMR experiments on bone, using powdered bovine cortical bone samples. (43)Ca NMR spectra of bovine cortical bone are analyzed by comparing to the natural-abundance (43)Ca NMR spectra of model compounds including hydroxyapatite and carbonated apatite. While (43)Ca NMR spectra of hydroxyapatite and carbonated apatite are very similar, they significantly differ from those of cortical bone. Raman spectroscopy shows that the calcium environment in bone is more similar to carbonated apatite than hydroxyapatite. A close analysis of (43)Ca NMR spectra reveals that the chemical shift frequencies of cortical bone and 10% carbonated apatite are similar but the quadrupole coupling constant of cortical bone is larger than that measured for model compounds. In addition, our results suggest that an increase in the carbonate concentration decreases the observed (43)Ca chemical shift frequency. A comparison of experimentally obtained (43)Ca MAS spectra with simulations reveal a 3:4 mol ratio of Ca-I/Ca-II sites in carbonated apatite and a 2.3:3 mol ratio for hydroxyapatite. 2D triple-quantum (43)Ca MAS experiments performed on a mixture of carbonated apatite and the bone protein osteocalcin reveal the presence of protein-bound and free calcium sites, which is in agreement with a model developed from X-ray crystal structure of the protein.
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Affiliation(s)
- Jiadi Xu
- Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA
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45
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Hajjar R, Millot Y, Man PP. Phase cycling in MQMAS sequences for half-integer quadrupole spins. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2010; 57:306-342. [PMID: 20667403 DOI: 10.1016/j.pnmrs.2010.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 05/11/2010] [Indexed: 05/29/2023]
Affiliation(s)
- Redouane Hajjar
- UPMC Univ Paris 06, FRE 3230, Laboratoire RMN des Matériaux Nanoporeux, 4 Place Jussieu, F-75005 Paris, France
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46
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Hanna JV, Smith ME. Recent technique developments and applications of solid state NMR in characterising inorganic materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2010; 38:1-18. [PMID: 20605082 DOI: 10.1016/j.ssnmr.2010.05.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2010] [Revised: 05/29/2010] [Accepted: 05/31/2010] [Indexed: 05/04/2023]
Abstract
A broad overview is given of some key recent developments in solid state NMR techniques that have driven enhanced applications to inorganic materials science. Reference is made to advances in hardware, pulse sequences and associated computational methods (e.g. first principles calculations, spectral simulation), along with their combination to provide more information about solid phases. The resulting methodology has allowed more nuclei to be observed and more structural information to be extracted. Cross referencing between experimental parameters and their calculation from the structure has given an added dimension to NMR as a characterisation probe of materials. Emphasis is placed on the progress made in the last decade especially from those nuclei that were little studied previously. The general points about technique development and the increased range of nuclei observed are illustrated through some specific exemplars from inorganic materials science.
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Affiliation(s)
- J V Hanna
- Department of Physics, University of Warwick, Coventry CV47AL, UK
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47
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Mroué KH, Emwas AHM, Power WP. Solid-state 27Al nuclear magnetic resonance investigation of three aluminum-centered dyes. CAN J CHEM 2010. [DOI: 10.1139/v09-155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report the first solid-state 27Al NMR study of three aluminum phthalocyanine dyes: aluminum phthalocyanine chloride, AlPcCl (1); aluminum-1,8,15,22-tetrakis(phenylthio)-29H,31H-phthalocyanine chloride, AlPc(SPh)4Cl (2); and aluminum-2,3-naphthalocyanine chloride, AlNcCl (3). Each of these compounds contains Al3+ ions coordinating to four nitrogen atoms and a chlorine atom. Solid-state 27Al NMR spectra, including multiple-quantum magic-angle spinning (MQMAS) spectra and quadrupolar Carr–Purcell–Meiboom–Gill (QCPMG) spectra of stationary powdered samples have been acquired at multiple high magnetic field strengths (11.7, 14.1, and 21.1 T) to determine their composition and number of aluminum sites, which were analyzed to extract detailed information on the aluminum electric field gradient (EFG) and nuclear magnetic shielding tensors. The quadrupolar parameters for each 27Al site were determined from spectral simulations, with quadrupolar coupling constants (CQ) ranging from 5.40 to 10.0 MHz and asymmetry parameters (η) ranging from 0.10 to 0.50, and compared well with the results of quantum chemical calculations of these tensors. We also report the largest 27Al chemical shielding anisotropy (CSA), with a span of 120 ± 10 ppm, observed directly in a solid material. The combination of MQMAS and computational predictions are used to interpret the presence of multiple aluminum sites in two of the three samples.
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Affiliation(s)
- Kamal H. Mroué
- Department of Chemistry, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada
| | - Abdul-Hamid M. Emwas
- Department of Chemistry, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada
| | - William P. Power
- Department of Chemistry, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada
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Sen S, Maekawa H, Papatheodorou GN. Short-Range Structure of Invert Glasses along the Pseudo-Binary Join MgSiO3−Mg2SiO4: Results from 29Si and 25Mg MAS NMR Spectroscopy. J Phys Chem B 2009; 113:15243-8. [DOI: 10.1021/jp9079603] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Sen
- Department of Chemical Engineering & Materials Science, University of California at Davis, Davis, California 95616, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai, 980-8579, Japan, and Institute of Chemical Engineering and High Temperature Chemical Processes FORTH, P.O. Box 1414, GR-26504, Patras, Greece
| | - H. Maekawa
- Department of Chemical Engineering & Materials Science, University of California at Davis, Davis, California 95616, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai, 980-8579, Japan, and Institute of Chemical Engineering and High Temperature Chemical Processes FORTH, P.O. Box 1414, GR-26504, Patras, Greece
| | - G. N. Papatheodorou
- Department of Chemical Engineering & Materials Science, University of California at Davis, Davis, California 95616, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai, 980-8579, Japan, and Institute of Chemical Engineering and High Temperature Chemical Processes FORTH, P.O. Box 1414, GR-26504, Patras, Greece
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49
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Cahill L, Hanna J, Wong A, Freitas JC, Yates J, Harris R, Smith M. Natural Abundance25Mg Solid-State NMR of Mg Oxyanion Systems: A Combined Experimental and Computational Study. Chemistry 2009; 15:9785-98. [DOI: 10.1002/chem.200900346] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Acquisition of ultra-wideline NMR spectra from quadrupolar nuclei by frequency stepped WURST–QCPMG. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2008.12.044] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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