1
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Garg AB, Lopez-Moreno S, Botella-Vives P, Gomis O, Bandiello E, Osman H, Popescu C, Errandonea D. Exploring the crystal structure and properties of ytterbium orthoantimonate under high pressure. Dalton Trans 2023; 52:14517-14526. [PMID: 37781733 DOI: 10.1039/d3dt02480f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
The crystal structure of YbSbO4 was determined from powder X-ray diffraction data using the Rietveld method. YbSbO4 is found to be monoclinic and isostructural to α-PrSbO4. We have also tested the influence of pressure on the crystal structure up to 22 GPa by synchrotron powder X-ray diffraction. No phase transition was found. The P-V equation of state and axial compressibilities were determined. Experiments were combined with density-functional theory calculations, which provided information on the elastic constants and the influence of pressure in the crystal structure and Raman/infrared phonons. Results are compared with those from other orthoantimonates. Reasons for the difference in the high-pressure behaviour of YbSbO4 compared with most antimony oxides will be discussed.
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Affiliation(s)
- Alka B Garg
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Sinhue Lopez-Moreno
- CONAHCYT-División de Materiales Avanzados, IPICYT, Camino a la presa de San José 2055 Col. Lomas 4a sección, San Luis Potosí 78126, Mexico
- Centro Nacional de Supercómputo, IPICYT, Camino a la presa de San José 2055 Col. Lomas 4a sección, San Luis Potosí 78126, Mexico
| | - Pablo Botella-Vives
- Departamento de Física Aplicada, Instituto de Ciencias de Materiales, MALTA Consolider Team, Universidad de Valencia, 46100 Valencia, Spain.
| | - Oscar Gomis
- Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica, MALTA Consolider Team, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Enrico Bandiello
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Hussien Osman
- Departamento de Física Aplicada, Instituto de Ciencias de Materiales, MALTA Consolider Team, Universidad de Valencia, 46100 Valencia, Spain.
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Catalin Popescu
- CELLS-ALBA Synchtrotron Light Facility, Cerdanyola del Valles E-08290, Barcelona, Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada, Instituto de Ciencias de Materiales, MALTA Consolider Team, Universidad de Valencia, 46100 Valencia, Spain.
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2
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Bendaoudi L, Ouahrani T, Daouli A, Rerbal B, Boufatah RM, Morales-García Á, Franco R, Bedrane Z, Badawi M, Errandonea D. Electronic and electrocatalytic properties of PbTiO 3: unveiling the effect of strain and oxygen vacancy. Dalton Trans 2023; 52:11965-11980. [PMID: 37577968 DOI: 10.1039/d3dt01478a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
First-principles calculations based on density-functional theory have been used to investigate the effect of biaxial strain and oxygen vacancy on the electronic, photocatalytic, and electrocatalytic properties of PbTiO3 oxide. Our results show that PbTiO3 has a high exciton binding energy and a band gap that can be easily moderated with different strain regimes. From a reactivity viewpoint, the highly exothermic adsorption of hydrogen atoms in both pristine and strained PbTiO3 structures does not make it a potential electrocatalyst for the hydrogen evolution reaction. Fortunately, the presence of oxygen vacancies on the PbTiO3 surface induces moderate adsorption energies, making the reduced PbTiO3 suitable for hydrogen evolution reaction processes.
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Affiliation(s)
- L Bendaoudi
- Laboratory of Materials Discovery, Unit of Research Materials and Renewable Energies, LEPM-URMER, Université de Tlemcen 13000, Algeria
| | - T Ouahrani
- École supérieure en sciences appliquées, ESSA-Tlemcen, BB 165 RP Bel Horizon, Tlemcen 13000, Algeria.
- Laboratoire de Physique Théorique, Université de Tlemcen, BP 119, 13000, Algeria.
| | - A Daouli
- Université de Lorraine and CNRS, LPCT, UMR 7019, 54506 Vandoeuvre-lés-Nancy, France
| | - B Rerbal
- Laboratory of Materials Discovery, Unit of Research Materials and Renewable Energies, LEPM-URMER, Université de Tlemcen 13000, Algeria
| | - R M Boufatah
- Laboratoire de Physique Théorique, Université de Tlemcen, BP 119, 13000, Algeria.
| | - Á Morales-García
- Departament de Ciéncia de Materials i Química Física & Institut de Química Teórica i Computacional (IQTCUB), Universitat de Barcelona, c/Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - R Franco
- (MALTA) Consolider Team and Departamento de Química Física y Analítica, Universidad de Oviedo, E-33006 Oviedo, Spain
| | - Z Bedrane
- Laboratoire de Physique Théorique, Université de Tlemcen, BP 119, 13000, Algeria.
| | - M Badawi
- Université de Lorraine and CNRS, LPCT, UMR 7019, 54506 Vandoeuvre-lés-Nancy, France
| | - D Errandonea
- Departamento de Física Aplicada - Instituto de Ciencia de Materiales, Matter at High Pressure (MALTA) Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100, Valencia, Spain.
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3
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Errandonea D, Achary SN, Diaz-Anichtchenko D, Bandiello E, Marqueño T, Shukla R, Tyagi AK, Popescu C, Alabarse FG. Equations of State and Crystal Structures of KCaPO 4, KSrPO 4, and K 2Ce(PO 4) 2 under High Pressure: Discovery of a New Polymorph of KCaPO 4. CRYSTAL GROWTH & DESIGN 2023; 23:2782-2794. [PMID: 37038396 PMCID: PMC10080652 DOI: 10.1021/acs.cgd.2c01547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/16/2023] [Indexed: 06/19/2023]
Abstract
We have studied by means of angle-dispersive powder synchrotron X-ray diffraction the structural behavior of KCaPO4, SrKPO4, and K2Ce(PO4)2 under high pressure up to 26, 25, and 22 GPa, respectively. For KCaPO4, we have also accurately determined the crystal structure under ambient conditions, which differs from the structure previously reported. Arguments supporting our structural determination will be discussed. We have found that KCaPO4 undergoes a reversible phase transition. The onset of the transition is at 5.6 GPa. It involves a symmetry decrease. The low-pressure phase is described by space group P3̅m1 and the high-pressure phase by space group Pnma. For KSrPO4 and K2Ce(PO4)2, no evidence of phase transitions has been found up to the highest pressure covered by the experiments. For the three compounds, the linear compressibility for the different crystallographic axes and the pressure-volume equation of states are reported and compared with those of other phosphates. The three studied compounds are among the most compressible phosphates. The results of the study improve the knowledge about the high-pressure behavior of complex phosphates.
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Affiliation(s)
- Daniel Errandonea
- Departamento
de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Srungarpu N. Achary
- Bhabha
Atomic Research Centre, Solid State Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Daniel Diaz-Anichtchenko
- Departamento
de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Enrico Bandiello
- Instituto
de Diseño para la Fabricación y Producción Automatizada,
MALTA Consolider Team, Universitat Politècnica
de Valéncia, Valencia 46022, Spain
| | - Tomas Marqueño
- Departamento
de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Rakesh Shukla
- Bhabha
Atomic Research Centre, Solid State Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Avesh K. Tyagi
- Bhabha
Atomic Research Centre, Solid State Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Catalin Popescu
- CELLS—ALBA
Synchtrotron Light Facility, Cerdanyola
del Valles E-08290, Barcelona, Spain
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4
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Semiconductor to metallic transition in double halide perovskites Cs2AgBiCl6 through induced pressure: A DFT simulation for optoelectronic and photovoltaic applications. Heliyon 2022; 8:e10032. [PMID: 36016522 PMCID: PMC9396552 DOI: 10.1016/j.heliyon.2022.e10032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/25/2022] [Accepted: 07/18/2022] [Indexed: 11/23/2022] Open
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5
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Garg AB, Liang A, Errandonea D, Rodríguez-Hernández P, Muñoz A. Monoclinic-triclinic phase transition induced by pressure in fergusonite-type YbNbO 4. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:174007. [PMID: 35120342 DOI: 10.1088/1361-648x/ac5202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
We have carried out a high-pressure study on monoclinic fergusonite-type YbNbO4. Synchrotron powder x-ray diffraction experiments and density-functional theory simulations have been performed. We found a gradual increase of symmetry under compression, with calculations predicting a second-order monoclinic-tetragonal transition at 15 GPa. However, experiments provided evidence of a transition at 11.6 GPa to a triclinic structure, described by space groupP1¯. The appearance of the triclinic phase, which according to calculations is dynamically unstable under hydrostatic conditions, seems to be related to the presence of non-hydrostatic stresses. The triclinic high-pressure phase remains stable up to 31.9 GPa and the phase transition is not reversible. We have determined the pressure dependence of unit-cell parameters of both phases and calculated their room-temperature equation of state. For the fergusonite-phase we have also obtained the isothermal compressibility tensor. In addition to the high-pressure studies, we report ambient-pressure Raman and infrared spectroscopy measurements which have been compared with density-functional theory calculations.
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Affiliation(s)
- A B Garg
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - A Liang
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - D Errandonea
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - P Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38205, Tenerife, Spain
| | - A Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38205, Tenerife, Spain
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6
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Garg AB, Errandonea D, Rodríguez-Hernández P, Muñoz A. High-pressure monoclinic-monoclinic transition in fergusonite-type HoNbO 4. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:195401. [PMID: 33561835 DOI: 10.1088/1361-648x/abe478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
In this paper we perform a high-pressure (HP) study of fergusonite-type HoNbO4. Powder x-ray diffraction experiments andab initiodensity-functional theory (DFT) simulations provide evidence of a phase transition at 18.9(1.1) GPa from the monoclinic fergusonite-type structure (space group I2/a) to another monoclinic polymorph described by space group P21/c. The phase transition is reversible and the HP structural behavior is different than the one previously observed in related niobates. The HP phase remains stable up to 29 GPa. The observed transition involves a change in the Nb coordination number from 4 to 6, and it is driven by mechanical instabilities. We have determined the pressure dependence of unit-cell parameters of both phases and calculated their room-temperature equation of state. For the fergusonite-phase we have also obtained the isothermal compressibility tensor. In addition to the HP studies, we report ambient-pressure Raman and infrared (IR) spectroscopy measurements. We have been able to identify all the active modes of fergusonite-type HoNbO4, which have been assigned based upon DFT calculations. These simulations also provide the elastic constants of the different structures and the pressure dependence of the Raman and IR modes of the two phases of HoNbO4. According toab initiocalculations, the reported phase transition is related to a mechanical instability and a phonon softening.
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Affiliation(s)
- A B Garg
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - D Errandonea
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - P Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38205, Tenerife, Spain
| | - A Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38205, Tenerife, Spain
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7
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Bandiello E, Errandonea D, González-Platas J, Rodríguez-Hernández P, Muñoz A, Bettinelli M, Popescu C. Phase Behavior of TmVO 4 under Hydrostatic Compression: An Experimental and Theoretical Study. Inorg Chem 2020; 59:4882-4894. [PMID: 32191461 DOI: 10.1021/acs.inorgchem.0c00147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We present a structural and optical characterization of magnetoelastic zircon-type TmVO4 at ambient pressure and under high pressure. The properties under high pressure have been determined experimentally under hydrostatic conditions and theoretically using density functional theory. By powder X-ray diffraction we show that TmVO4 undergoes a first-order irreversible phase transition to a scheelite structure above 6 GPa. We have also determined (from powder and single-crystal X-ray diffraction) the bulk moduli of both phases and found that their compressibilities are anisotropic. The band gap of TmVO4 is found to be Eg = 3.7(2) eV. Under compression the band gap opens linearly, until it undergoes a huge collapse following the structural phase transition (ΔEg = 1.15 eV). Ab initio structural and free energy calculations support our findings. Moreover, calculations of the band structure and density of states reveal that for both zircon and scheelite TmVO4 the band gap is entirely determined by the V 3d and O 2p states of the VO43- ion. The behavior of the band gap can thus be understood entirely in terms of the structural modifications of the VO4 units under compression. Additionally, we have calculated the evolution of the infrared and Raman phonons of both phases upon compression. The presence of soft modes is related to the dynamic instability of the low-pressure phase and to the phase transition.
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Affiliation(s)
- Enrico Bandiello
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Javier González-Platas
- Departamento de Física, Instituto Universitario de Estudios Avanzados en Física Atómica, Molecular y Fotónica (IUDEA), MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Plácida Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Alfonso Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Valles, 08290 Barcelona, Spain
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8
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Pereira ALDJ, Santamaría-Pérez D, Vilaplana R, Errandonea D, Popescu C, da Silva EL, Sans JA, Rodríguez-Carvajal J, Muñoz A, Rodríguez-Hernández P, Mujica A, Radescu SE, Beltrán A, Otero-de-la-Roza A, Nalin M, Mollar M, Manjón FJ. Experimental and Theoretical Study of SbPO 4 under Compression. Inorg Chem 2020; 59:287-307. [PMID: 31876414 DOI: 10.1021/acs.inorgchem.9b02268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
SbPO4 is a complex monoclinic layered material characterized by a strong activity of the nonbonding lone electron pair (LEP) of Sb. The strong cation LEP leads to the formation of layers piled up along the a axis and linked by weak Sb-O electrostatic interactions. In fact, Sb has 4-fold coordination with O similarly to what occurs with the P-O coordination, despite the large difference in ionic radii and electronegativity between both elements. Here we report a joint experimental and theoretical study of the structural and vibrational properties of SbPO4 at high pressure. We show that SbPO4 is not only one of the most compressible phosphates but also one of the most compressible compounds of the ABO4 family. Moreover, it has a considerable anisotropic compression behavior, with the largest compression occurring along a direction close to the a axis and governed by the compression of the LEP and the weak interlayer Sb-O bonds. The strong compression along the a axis leads to a subtle modification of the monoclinic crystal structure above 3 GPa, leading from a 2D to a 3D material. Moreover, the onset of a reversible pressure-induced phase transition is observed above 9 GPa, which is completed above 20 GPa. We propose that the high-pressure phase is a triclinic distortion of the original monoclinic phase. The understanding of the compression mechanism of SbPO4 can aid to improve the ion intercalation and catalytic properties of this layered compound.
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Affiliation(s)
- André Luis de Jesus Pereira
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team , Universitat Politècnica de València , València , Spain.,Grupo de Pesquisa de Materiais Fotonicos e Energia Renovável-MaFER , Universidade Federal da Grande Dourados , Dourados , Mato Grosso do Sul , Brazil
| | - David Santamaría-Pérez
- Departament de Física Aplicada-ICMUV, MALTA Consolider Team , Universitat de València , Burjassot , Spain
| | - Rosário Vilaplana
- Centro de Tecnologías Físicas, MALTA Consolider Team , Universitat Politecnica de València , València 46022 , Spain
| | - Daniel Errandonea
- Departament de Física Aplicada-ICMUV, MALTA Consolider Team , Universitat de València , Burjassot , Spain
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility , 08290 Cerdanyola, Barcelona , Spain
| | - Estelina Lora da Silva
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team , Universitat Politècnica de València , València , Spain
| | - Juan Angel Sans
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team , Universitat Politècnica de València , València , Spain
| | | | - Alfonso Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , Tenerife , Spain
| | - Plácida Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , Tenerife , Spain
| | - Andres Mujica
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , Tenerife , Spain
| | - Silvana Elena Radescu
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , Tenerife , Spain
| | - Armando Beltrán
- Departament de Química Física i Analítica, MALTA Consolider Team , Universitat Jaume I , Castelló , Spain
| | - Alberto Otero-de-la-Roza
- Departamento de Química Física y Analítica, MALTA Consolider Team , Universidad de Oviedo , 33006 Oviedo , Spain
| | - Marcelo Nalin
- Instituto de Quimica, Departamento de Química Geral e Inorgânica , UNESP-Campus de Araraquara , São Paulo , Brazil
| | - Miguel Mollar
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team , Universitat Politècnica de València , València , Spain
| | - Francisco Javier Manjón
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team , Universitat Politècnica de València , València , Spain
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9
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Errandonea D. Exploring the high-pressure behaviour of polymorphs of AMO4 ternary oxides: crystal structure and physical properties. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1663-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Synthesis, Characterization, and Crystal Structure Determination of a New Lithium Zinc Iodate Polymorph LiZn(IO3)3. CRYSTALS 2019. [DOI: 10.3390/cryst9090464] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthesis and characterization of anhydrous LiZn(IO3)3 powders prepared from an aqueous solution are reported. Morphological and compositional analyses were carried out by using scanning electron microscopy and energy-dispersive X-ray measurements. The synthesized powders exhibited a needle-like morphology after annealing at 400 °C. A crystal structure for the synthesized compound was proposed from powder X-ray diffraction and density-functional theory calculations. Rietveld refinements led to a monoclinic structure, which can be described with space group P21, number 4, and unit-cell parameters a = 21.874(9) Å, b = 5.171(2) Å, c = 5.433(2) Å, and = 120.93(4)°. Density-functional theory calculations supported the same crystal structure. Infrared spectra were also collected, and the vibrations associated with the different modes were discussed. The non-centrosymmetric space group determined for this new polymorph of LiZn(IO3)3, the characteristics of its infrared absorption spectrum, and the observed second-harmonic generation suggest it is a promising infrared non-linear optical material.
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11
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12
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Ji Y, Kowalski PM, Kegler P, Huittinen N, Marks NA, Vinograd VL, Arinicheva Y, Neumeier S, Bosbach D. Rare-Earth Orthophosphates From Atomistic Simulations. Front Chem 2019; 7:197. [PMID: 31001521 PMCID: PMC6456693 DOI: 10.3389/fchem.2019.00197] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/14/2019] [Indexed: 11/13/2022] Open
Abstract
Lanthanide phosphates (LnPO4) are considered as a potential nuclear waste form for immobilization of Pu and minor actinides (Np, Am, and Cm). In that respect, in the recent years we have applied advanced atomistic simulation methods to investigate various properties of these materials on the atomic scale. In particular, we computed several structural, thermochemical, thermodynamic and radiation damage related parameters. From a theoretical point of view, these materials turn out to be excellent systems for testing quantum mechanics-based computational methods for strongly correlated electronic systems. On the other hand, by conducting joint atomistic modeling and experimental research, we have been able to obtain enhanced understanding of the properties of lanthanide phosphates. Here we discuss joint initiatives directed at understanding the thermodynamically driven long-term performance of these materials, including long-term stability of solid solutions with actinides and studies of structural incorporation of f elements into these materials. In particular, we discuss the maximum load of Pu into the lanthanide-phosphate monazites. We also address the importance of our results for applications of lanthanide-phosphates beyond nuclear waste applications, in particular the monazite-xenotime systems in geothermometry. For this we have derived a state-of-the-art model of monazite-xenotime solubilities. Last but not least, we discuss the advantage of usage of atomistic simulations and the modern computational facilities for understanding of behavior of nuclear waste-related materials.
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Affiliation(s)
- Yaqi Ji
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
| | - Piotr M Kowalski
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
| | - Philip Kegler
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
| | - Nina Huittinen
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | | | - Victor L Vinograd
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
| | - Yulia Arinicheva
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany.,Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-1: Materials Synthesis and Processing, Jülich, Germany
| | - Stefan Neumeier
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
| | - Dirk Bosbach
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research - IEK-6: Nuclear Waste Management and Reactor Safety, Jülich, Germany.,JARA High-Performance Computing, Aachen, Germany
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13
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Ruiz-Fuertes J, Martínez-García D, Marqueño T, Errandonea D, MacLeod SG, Bernert T, Haussühl E, Santamaría-Pérez D, Ibáñez J, Mallavarapu A, Achary SN, Popescu C, Bettinelli M. High-Pressure High-Temperature Stability and Thermal Equation of State of Zircon-Type Erbium Vanadate. Inorg Chem 2018; 57:14005-14012. [PMID: 30370764 DOI: 10.1021/acs.inorgchem.8b01808] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The zircon to scheelite phase boundary of ErVO4 has been studied by high-pressure and high-temperature powder and single-crystal X-ray diffraction. This study has allowed us to delimit the best synthesis conditions of its scheelite-type phase, determine the ambient-temperature equation of state of the zircon and scheelite-type structures, and obtain the thermal equation of state of the zircon-type polymorph. The results obtained with powder samples indicate that zircon-type ErVO4 transforms to scheelite at 8.2 GPa and 293 K and at 7.5 GPa and 693 K. The analyses yield bulk moduli K0 of 158(13) GPa for the zircon phase and 158(17) GPa for the scheelite phase, with a temperature derivative of d K0/d T = -[3.8(2)] × 10-3 GPa K-1 and a volumetric thermal expansion of α0 = [0.9(2)] × 10-5 K-1 for the zircon phase according to the Berman model. The results are compared with those of other zircon-type vanadates, raising the need for careful experiments with highly crystalline scheelite to obtain reliable bulk moduli of this phase. Finally, we have performed single-crystal diffraction experiments from 110 to 395 K, and the obtained volumetric thermal expansion (α0) for zircon-type ErVO4 in the 300-395 K range is [1.4(2)] × 10-5 K-1, in good agreement with previous data and with our experimental value given from the thermal equation of state fit within the limits of uncertainty.
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Affiliation(s)
- Javier Ruiz-Fuertes
- DCITIMAC , Universidad de Cantabria , Avenida Los Castros 48 , 39005 Santander , Spain
| | - Domingo Martínez-García
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Tomás Marqueño
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Daniel Errandonea
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Simon G MacLeod
- Atomic Weapons Establishment , Aldermaston, Reading RG7 4PR , United Kingdom.,SUPA, School of Physics & Astronomy, and Centre for Science at Extreme Conditions , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Thomas Bernert
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Eiken Haussühl
- Institut für Geowissenshaften , Goethe-Universität Frankfurt , Altenhöferallee 1 , 60438 Frankfurt am Main , Germany
| | - David Santamaría-Pérez
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Jordi Ibáñez
- Institute of Earth Sciences Jaume Almera, CSIC , 08028 Barcelona , Spain
| | - Anitha Mallavarapu
- Material Processing & Corrosion Engineering Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - S Nagabhusan Achary
- Chemistry Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility , Cerdanyola del Vallés , 08290 Barcelona , Spain
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, DB , Università di Verona, and INSTM, UdR Verona , 37134 Verona , Italy
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14
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Bandiello E, Errandonea D, Pellicer-Porres J, Garg AB, Rodriguez-Hernandez P, Muñoz A, Martinez-Garcia D, Rao R, Popescu C. Effect of High Pressure on the Crystal Structure and Vibrational Properties of Olivine-Type LiNiPO 4. Inorg Chem 2018; 57:10265-10276. [PMID: 30052035 DOI: 10.1021/acs.inorgchem.8b01495] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, we present an experimental and theoretical study of the effects of high pressure and high temperature on the structural properties of olivine-type LiNiPO4. This compound is part of an interesting class of materials primarily studied for their potential use as electrodes in lithium-ion batteries. We found that the original olivine structure (α-phase) is stable up to ∼40 GPa. Above this pressure, the onset of a new phase is observed, as put in evidence by the X-ray diffraction (XRD) experiments. The structural refinement shows that the new phase (known as β-phase) belongs to space group Cmcm. At room temperature, the two phases coexist at least up to 50 GPa. A complete conversion to the β-phase was only obtained at high-pressure and high-temperature conditions (973 K, 6.5 GPa), as confirmed by both XRD and Raman spectroscopy. Ab initio calculations support the same structural sequence. The need of high-temperature conditions to obtain the complete transformation of the α-phase into the β-phase is indicative of the existence of a kinetic barrier for the phase transition. Here, we report the evolution of crystallographic parameters as a function of pressure for both phases, comparing them with the theoretical predictions. We also discuss the influence of pressure on the polyhedral units and report room-temperature equations of state. The dependence of the Raman phonons of both phases on pressure is also studied, assigning to each phonon its respective symmetry by comparison with the results of the ab initio simulations.
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Affiliation(s)
- Enrico Bandiello
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team , Universidad de Valencia, Edificio de Investigación , C/Dr. Moliner 50 , Burjassot , 46100 Valencia , Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team , Universidad de Valencia, Edificio de Investigación , C/Dr. Moliner 50 , Burjassot , 46100 Valencia , Spain
| | - Julio Pellicer-Porres
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team , Universidad de Valencia, Edificio de Investigación , C/Dr. Moliner 50 , Burjassot , 46100 Valencia , Spain
| | - Alka B Garg
- High Pressure and Synchrotron Radiation Physics Division , Bhabha Atomic Research Centre , Mumbai 400085 , Maharashtra , India
| | - Placida Rodriguez-Hernandez
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , La Laguna , E-38205 Tenerife , Spain
| | - Alfonso Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team , Universidad de La Laguna , La Laguna , E-38205 Tenerife , Spain
| | - Domingo Martinez-Garcia
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team , Universidad de Valencia, Edificio de Investigación , C/Dr. Moliner 50 , Burjassot , 46100 Valencia , Spain
| | - Rekha Rao
- Solid State Physics Division , Bhabha Atomic Research Centre , Mumbai 400085 , India
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Valles, 08290 Barcelona , Spain
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15
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Copper Delafossites under High Pressure—A Brief Review of XRD and Raman Spectroscopic Studies. CRYSTALS 2018. [DOI: 10.3390/cryst8060255] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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High-Pressure Elastic, Vibrational and Structural Study of Monazite-Type GdPO4 from Ab Initio Simulations. CRYSTALS 2018. [DOI: 10.3390/cryst8050209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Errandonea D, Gomis O, Rodríguez-Hernández P, Muñoz A, Ruiz-Fuertes J, Gupta M, Achary SN, Hirsch A, Manjon FJ, Peters L, Roth G, Tyagi AK, Bettinelli M. High-pressure structural and vibrational properties of monazite-type BiPO 4, LaPO 4, CePO 4, and PrPO 4. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:065401. [PMID: 29337696 DOI: 10.1088/1361-648x/aaa20d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monazite-type BiPO4, LaPO4, CePO4, and PrPO4 have been studied under high pressure by ab initio simulations and Raman spectroscopy measurements in the pressure range of stability of the monazite structure. A good agreement between experimental and theoretical Raman-active mode frequencies and pressure coefficients has been found which has allowed us to discuss the nature of the Raman-active modes. Besides, calculations have provided us with information on how the crystal structure is modified by pressure. This information has allowed us to determine the equation of state and the isothermal compressibility tensor of the four studied compounds. In addition, the information obtained on the polyhedral compressibility has been used to explain the anisotropic axial compressibility and the bulk compressibility of monazite phosphates. Finally, we have carried out a systematic discussion on the high-pressure behavior of the four studied phosphates in comparison to results of previous studies.
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Affiliation(s)
- D Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universitat de València, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
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18
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Neumeier S, Arinicheva Y, Ji Y, Heuser JM, Kowalski PM, Kegler P, Schlenz H, Bosbach D, Deissmann G. New insights into phosphate based materials for the immobilisation of actinides. RADIOCHIM ACTA 2017. [DOI: 10.1515/ract-2017-2819] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This paper focuses on major phosphate-based ceramic materials relevant for the immobilisation of Pu, minor actinides, fission and activation products. Key points addressed include the recent progress regarding synthesis methods, the formation of solid solutions by structural incorporation of actinides or their non-radioactive surrogates and waste form fabrication by advanced sintering techniques. Particular attention is paid to the properties that govern the long-term stability of the waste forms under conditions relevant to geological disposal. The paper highlights the benefits gained from synergies of state-of-the-art experimental approaches and advanced atomistic modeling tools for addressing properties and stability of f-element-bearing phosphate materials. In conclusion, this article provides a perspective on the recent advancements in the understanding of phosphate based ceramics and their properties with respect to their application as nuclear waste forms.
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Affiliation(s)
- Stefan Neumeier
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Yulia Arinicheva
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
- Forschungszentrum Jülich, Institute of Energy and Climate Research – Materials Synthesis and Processing (IEK-1) , 52425 Jülich , Germany
| | - Yaqi Ji
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Julia M. Heuser
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
- Karlsruhe Institute of Technology, Institute for Applied Materials (IAM) , 76021 Karlsruhe , Germany
| | - Piotr M. Kowalski
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Philip Kegler
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Hartmut Schlenz
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Dirk Bosbach
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
| | - Guido Deissmann
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6) , 52425 Jülich , Germany ; JARA High-Performance Computing , Schinkelstrasse 2 , 52062 Aachen , Germany
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19
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Errandonea D, Santamaria-Perez D, Martinez-Garcia D, Gomis O, Shukla R, Achary SN, Tyagi AK, Popescu C. Pressure Impact on the Stability and Distortion of the Crystal Structure of CeScO 3. Inorg Chem 2017. [PMID: 28648048 DOI: 10.1021/acs.inorgchem.7b01042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effects of high pressure on the crystal structure of orthorhombic (Pnma) perovskite-type cerium scandate were studied in situ under high pressure by means of synchrotron X-ray powder diffraction, using a diamond-anvil cell. We found that the perovskite-type crystal structure remains stable up to 40 GPa, the highest pressure reached in the experiments. The evolution of unit-cell parameters with pressure indicated an anisotropic compression. The room-temperature pressure-volume equation of state (EOS) obtained from the experiments indicated the EOS parameters V0 = 262.5(3) Å3, B0 = 165(7) GPa, and B0' = 6.3(5). From the evolution of microscopic structural parameters like bond distances and coordination polyhedra of cerium and scandium, the macroscopic behavior of CeScO3 under compression was explained and reasoned for its large pressure stability. The reported results are discussed in comparison with high-pressure results from other perovskites.
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Affiliation(s)
- Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia , MALTA Consolider Team, Edificio de Investigación, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - David Santamaria-Perez
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia , MALTA Consolider Team, Edificio de Investigación, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Domingo Martinez-Garcia
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia , MALTA Consolider Team, Edificio de Investigación, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Oscar Gomis
- Centro de Tecnologías Físicas, MALTA Consolider Team, Universitat Politècnica de València , 46022 Valencia, Spain
| | - Rakesh Shukla
- Chemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - S Nagabhusan Achary
- Chemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Avesh K Tyagi
- Chemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility , Cerdanyola, Barcelona 08290, Spain
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