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Chanyshev A, Martirosyan N, Wang L, Chakraborti A, Purevjav N, Wang F, Kim EJ, Tang H, Fedotenko T, Bhat S, Farla R, Katsura T. Thermal Equation of State of Cubic Silicon Carbide at High Pressures. Chemphyschem 2024; 25:e202300604. [PMID: 38426668 DOI: 10.1002/cphc.202300604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/16/2024] [Indexed: 03/02/2024]
Abstract
We have performed in situ X-ray diffraction measurements of cubic silicon carbide (SiC) with a zinc-blende crystal structure (B3) at high pressures and temperatures using multi-anvil apparatus. The ambient volume inferred from the compression curves is smaller than that of the starting material. Using the 3rd-order Birch-Murnaghan equation of state and the Mie-Grüneisen-Debye model, we have determined the thermoelastic parameters of the B3-SiC to be K0=228±3 GPa, K0',=4.4±0.4, q=0.27±0.37, where K0, K0' and q are the isothermal bulk modulus, its pressure derivative and logarithmic volume dependence of the Grüneisen parameter, respectively. Using the 3rd-order Birch-Murnaghan EOS with the thermal expansion coefficient, the thermoelastic parameters have been found as K0=221±3 GPa, K0',=5.2±0.4, α0=0.90±0.02 ⋅ 10-5 ⋅ K-1, where α0 is the thermal expansion coefficient at room pressure and temperature. We have determined that paired B3-SiC - MgO calibrants can be used to estimate pressure and temperature simultaneously in ultrahigh-pressure experiments up to 60 GPa.
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Affiliation(s)
- Artem Chanyshev
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Naira Martirosyan
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Lin Wang
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Amrita Chakraborti
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Narangoo Purevjav
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Fei Wang
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Eun Jeong Kim
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Hu Tang
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
| | - Timofey Fedotenko
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Shrikant Bhat
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Robert Farla
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Tomoo Katsura
- Bayerisches Geoinstitut, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, German
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2
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Agati M, Romi S, Fanetti S, Bini R. High-pressure structure and reactivity of crystalline bibenzyl: Insights and prospects for the synthesis of functional double-core carbon nanothreads. J Chem Phys 2023; 159:244507. [PMID: 38156639 DOI: 10.1063/5.0174157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
The high-pressure synthesis of double-core nanothreads derived from pseudo-stilbene crystals represents a captivating approach to isolate within the thread chromophores or functional groups without altering its mechanical properties. These entities can be effectively utilized to finely tune optical properties or as preferential sites for functionalization. Bibenzyl, being isostructural with other members of this class, represents the ideal system for building co-crystals from which we can synthesize double-core nanothreads wherein bridging chromophores, such as the azo or ethylene moieties, are embedded in the desired concentration within a fully saturated environment. To achieve this, a critical step is the preliminary characterization of the high-pressure behavior of crystalline bibenzyl. We report here an accurate investigation performed through state-of-the-art spectroscopic techniques, Raman and Fourier transform infrared spectroscopy, and x-ray diffraction up to 40 GPa. Our findings reveal a strongly anisotropic compression of the crystal, which determines, at pressures between 1 and 2 GPa, consistent modifications of the vibrational spectrum, possibly related to a torsional distortion of the molecules. A phase transition is detected between 9 and 10 GPa, leading to a high pressure phase where, above 24 GPa, the nanothread formation is observed. However, the observed reaction was limited in extent and required significantly higher pressures in comparison to other members of the pseudo-stilbene family. This comprehensive study is imperative in laying the foundation for future endeavors, aiming to synthesize double-core nanothreads from pseudo-stilbene crystals, and provides crucial insights into the high-pressure behavior and phase transitions of crystalline bibenzyl.
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Affiliation(s)
- Milo Agati
- LENS, European Laboratory for Non-linear Spectroscopy, Via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Sebastiano Romi
- LENS, European Laboratory for Non-linear Spectroscopy, Via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Samuele Fanetti
- ICCOM-CNR, Istituto di Chimica dei Composti OrganoMetallici, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Roberto Bini
- Dipartimento di Chimica "Ugo Schiff," Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Italy
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Jiang W, Sofer R, Gao X, Tkatchenko A, Kronik L, Ouyang W, Urbakh M, Hod O. Anisotropic Interlayer Force Field for Group-VI Transition Metal Dichalcogenides. J Phys Chem A 2023; 127:9820-9830. [PMID: 37938019 DOI: 10.1021/acs.jpca.3c04540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
An anisotropic interlayer force field that describes the interlayer interactions in homogeneous and heterogeneous interfaces of group-VI transition metal dichalcogenides (MX2, where M = Mo, W, and X = S, Se) is presented. The force field is benchmarked against density functional theory calculations for bilayer systems within the Heyd-Scuseria-Ernzerhof hybrid density functional approximation, augmented by a nonlocal many-body dispersion treatment of long-range correlation. The parametrization yields good agreement with the reference calculations of binding energy curves and sliding potential energy surfaces. It is found to be transferable to transition metal dichalcogenide (TMD) junctions outside of the training set that contain the same atom types. Calculated bulk moduli agree with most previous dispersion-corrected density functional theory predictions, which underestimate the available experimental values. Calculated phonon spectra of the various junctions under consideration demonstrate the importance of appropriately treating the anisotropic nature of the layered interfaces. Considering our previous parametrization for MoS2, the anisotropic interlayer potential enables accurate and efficient large-scale simulations of the dynamical, tribological, and thermal transport properties of a large set of homogeneous and heterogeneous TMD interfaces.
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Affiliation(s)
- Wenwu Jiang
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Reut Sofer
- School of Chemistry and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Xiang Gao
- School of Chemistry and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Alexandre Tkatchenko
- Department of Physics and Materials Science, University of Luxembourg, L-1511 Luxembourg City, Luxembourg
| | - Leeor Kronik
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth 76100, Israel
| | - Wengen Ouyang
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
| | - Michael Urbakh
- School of Chemistry and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Oded Hod
- School of Chemistry and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
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Kiruthika S, Sundar P, Ravindran P. Structural phase stability and thermodynamical properties of transition metal complex hydrides Na2MgTMH7 (TM=Sc−Cu) for hydrogen storage applications. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Ning BY. Pressure-induced structural phase transitions of zirconium: an ab initiostudy based on statistical ensemble theory. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:505402. [PMID: 36261047 DOI: 10.1088/1361-648x/ac9bbf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Recently, we put forward a direct integral approach to solve the partition function with ultrahigh efficiency and precision, which enables the rigorous ensemble theory to investigate phase behaviors of realistic condensed matters and has been successfully applied to the phase transition of vanadium metal (Ninget al2022J. Phys.: Condens. Matter34425404). In this work, the approach is applied to the structural phase transitions of zirconium metal under compressions up to 160 GPa and ultrahigh calculation precision is achieved. For the obtained equation of state with pressure over 40 GPa, the deviations from latest experiments are within0.7%and the computed transition pressure ofα→ωis 6.93 GPa, which is about five times larger than previous theoretical predictions and in excellent agreement with the measured range of 5-15 GPa. Our results support the argument that there is no existence of the isostructural phase transition of Zr metal that was asserted by recent experimental observations.
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Affiliation(s)
- Bo-Yuan Ning
- Institute of Modern Physics, Fudan University, Shanghai 200433, People's Republic of China
- Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
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Rong Z, Zhi C, Jun C. Ab initio calculation of mechanical, electronic and optical characteristics of chalcogenide perovskite BaZrS 3 at high pressures. Acta Crystallogr C Struct Chem 2022; 78:570-577. [PMID: 36196790 DOI: 10.1107/s2053229622009147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
A theoretical examination of the structural, elastic, electronic and optical properties of the chalcogenide perovskite BaZrS3 under pressures of 0 and 20 GPa was performed using density functional theory ab initio calculations. The lattice constants of the BaZrS3 structure are well reproduced from our first-principles calculations and are in excellent agreement with experimental measurements. Moreover, the values of mechanical parameters, such as the elastic constant, increased under applied pressure. The electronic parameters indicate that the chalcogenide perovskite BaZrS3 has a direct band gap of 1.75 eV. To understand the optical response, the real and imaginary parts of the dielectric function of BaZrS3 have been studied, as well as the absorption coefficient, reflectivity and extinction coefficient. The induced pressure is found to enhance the optical parameters in the different energy regions. Our calculations predict that the studied chalcogenide perovskite BaZrS3 could be a candidate in photovoltaic, optoelectronic and mechanical applications.
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Affiliation(s)
- Zhong Rong
- Jiangxi Modern Polytechnic College, Nanchang 330095, People's Republic of China
| | - Chen Zhi
- Jiangxi Modern Polytechnic College, Nanchang 330095, People's Republic of China
| | - Cao Jun
- Jiangxi Modern Polytechnic College, Nanchang 330095, People's Republic of China
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7
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Perevoshchikov AV, Maksimov AI, Kovalenko NA, Uspenskaya IA. Equations of State for a Crystalline Phase: Contemporary Models. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422100259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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Han J, Shi LQ, Wang N, Zhang HF, Peng SM. Equation of state of Iridium: from insight of ensemble theory. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:465702. [PMID: 36130607 DOI: 10.1088/1361-648x/ac93dc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 09/21/2022] [Indexed: 06/15/2023]
Abstract
The equations of state (EOS) of Iridium are, for the first time, obtained by solving the high-dimension integral of partition function based on a recently developed approach of ultrahigh efficiency and precision without any artificial parameter, and the deviation of 0.25% and 1.52% from the experiments was achieved respectively for the isobaric EOS in a temperature range of 300 K-2500 K and the isothermal EOS at 300 K up to 300 GPa. Specific comparisons show that the deviation of EOS based on harmonic approximation even including anharmonic effect, manifests worse than ours by several times or even one order of magnitude, indicating that ensemble theory is the very approach to understand the thermodynamic properties of condensed matter.
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Affiliation(s)
- Jun Han
- Institute of Modern Physics, Fudan University, Shanghai 200433, People's Republic of China
- Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Li-Qun Shi
- Institute of Modern Physics, Fudan University, Shanghai 200433, People's Republic of China
- Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - Ning Wang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Hui-Fen Zhang
- Institute of Modern Physics, Fudan University, Shanghai 200433, People's Republic of China
- Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
| | - Shu-Ming Peng
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
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9
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Liao M, Wang Y, Wang F, Zhu J, Liu ZK. Unexpected low thermal expansion coefficients of pentadiamond. Phys Chem Chem Phys 2022; 24:23561-23569. [PMID: 36129304 DOI: 10.1039/d2cp03031d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new carbon allotrope, pentadiamond, was recently reported in the literature. Herein, we investigate its thermal expansion and thermoelastic properties by first principles. It is observed that the bulk modulus and hardness of pentadiamond are far less than those of diamond, but the thermal expansion of pentadiamond is lower than that of diamond in the range of 0 K to 2000 K, and even negative in the temperature range of 0-190 K. The negative thermal expansion at low temperature originates from the transverse vibrations of the edge-shared atoms in the coplanar double-pentagon. The low thermal expansion at high temperature is contributed by the strong bonds in pentadiamond. Benefiting from the low thermal expansion, the elastic constants of pentadiamond decrease very slowly with respect to temperature compared with those of diamond. The low sensitivity of thermodynamic and thermoelastic properties to temperature makes pentadiamond a promising material for high anti-thermal-shock and accurate electronic device applications.
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Affiliation(s)
- Mingqing Liao
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China. .,Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.,School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Yi Wang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Fengjiang Wang
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China.
| | - Jingchuan Zhu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Zi-Kui Liu
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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10
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The Crystal Structure of Carbonic Acid. INORGANICS 2022. [DOI: 10.3390/inorganics10090132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ubiquitous carbonic acid, H2CO3, a key molecule in biochemistry, geochemistry, and also extraterrestrial chemistry, is known from a plethora of physicochemical studies. Its crystal structure has now been determined from neutron-diffraction data on a deuterated sample in a specially built hybrid clamped cell. At 1.85 GPa, D2CO3 crystallizes in the monoclinic space group P21/c with a = 5.392(2), b = 6.661(4), c = 5.690(1) Å, β = 92.66(3)°, Z = 4, with one symmetry-inequivalent anti-anti shaped D2CO3 molecule forming dimers, as previously predicted. Quantum chemistry evidences π bonding within the CO3 molecular core, very strong hydrogen bonding between the molecules, and a massive influence of the crystal field on all bonds; phonon calculations emphasize the locality of the vibrations, being rather insensitive to the extended structure.
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11
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Lafourcade P, Maillet J, Bruzy N, Denoual C. Elastic Anisotropy of 1,3,5‐Triamino‐2,4,6‐Trinitrobenzene as a Function of Temperature and Pressure: A Molecular Dynamics Study. PROPELLANTS EXPLOSIVES PYROTECHNICS 2022. [DOI: 10.1002/prep.202100384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paul Lafourcade
- CEA DAM DIF 91297 Arpajon CEDEX France
- Laboratoire Matière en Conditions Extrêmes (LMCE) Université Paris-Saclay Bruyères-le-Châtel F-91680 France
| | - Jean‐Bernard Maillet
- CEA DAM DIF 91297 Arpajon CEDEX France
- Laboratoire Matière en Conditions Extrêmes (LMCE) Université Paris-Saclay Bruyères-le-Châtel F-91680 France
| | - Nicolas Bruzy
- CEA DAM DIF 91297 Arpajon CEDEX France
- Laboratoire Matière en Conditions Extrêmes (LMCE) Université Paris-Saclay Bruyères-le-Châtel F-91680 France
| | - Christophe Denoual
- CEA DAM DIF 91297 Arpajon CEDEX France
- Laboratoire Matière en Conditions Extrêmes (LMCE) Université Paris-Saclay Bruyères-le-Châtel F-91680 France
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12
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Yanes-Rodríguez R, Cabrera-Ramírez A, Prosmiti R. Delving into guest-free and He-filled sI and sII clathrate hydrates: a first-principles computational study. Phys Chem Chem Phys 2022; 24:13119-13129. [PMID: 35587105 DOI: 10.1039/d2cp00701k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dynamics of the formation of a specific clathrate hydrate as well as its thermodynamic transitions depend on the interactions between the trapped molecules and the host water lattice. The molecular-level understanding of the different underlying processes benefits not only the description of the properties of the system, but also allows the development of multiple technological applications such as gas storage, gas separation, energy transport, etc. In this work we investigate the stability of periodic crystalline structures, such as He@sI and He@sII clathrate hydrates by first-principles computations. We consider such host water networks interacting with a guest He atom using selected density functional theory approaches, in order to explore the effects on the encapsulation of a light atom in the sI/sII crystals, by deriving all energy components (guest-water, water-water, guest-guest). Structural properties and energies were first computed by structural relaxations of the He-filled and empty sI/sII unit cells, yielding lattice and compressibility parameters comparable to experimental and theoretical values available for those hydrates. According to the results obtained, the He enclathration in the sI/sII unit cells is a stabilizing process, and both He@sI and He@sII clathrates, considering single cage occupancy, are predicted to be stable whatever the XDM or D4 dispersion correction applied. Our results further reveal that despite the weak underlying interactions the He encapsulation has a rather notable effect on both lattice parameters and energetics, with the He@sII being the most energetically favorable in accord with recent experimental observations.
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Affiliation(s)
- Raquel Yanes-Rodríguez
- Institute of Fundamental Physics (IFF-CSIC), CSIC, Serrano 123, 28006 Madrid, Spain. .,Doctoral Programme in Theoretical Chemistry and Computational Modelling, Doctoral School, Universidad Autónoma de Madrid, Spain
| | - Adriana Cabrera-Ramírez
- Institute of Fundamental Physics (IFF-CSIC), CSIC, Serrano 123, 28006 Madrid, Spain. .,Doctoral Programme in Theoretical Chemistry and Computational Modelling, Doctoral School, Universidad Autónoma de Madrid, Spain
| | - Rita Prosmiti
- Institute of Fundamental Physics (IFF-CSIC), CSIC, Serrano 123, 28006 Madrid, Spain.
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13
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Wang YF, Ji XY, Xing LC, Wang PD, Liu J, Zhang TD, Zhao HN, He HT. Improved volume variable cluster model method for crystal-lattice optimization: effect on isotope fractionation factor. GEOCHEMICAL TRANSACTIONS 2022; 23:1. [PMID: 35598206 PMCID: PMC9124387 DOI: 10.1186/s12932-022-00078-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/31/2022] [Indexed: 06/15/2023]
Abstract
The isotopic fractionation factor and element partition coefficient can be calculated only after the geometric optimization of the molecular clusters is completed. Optimization directly affects the accuracy of some parameters, such as the average bond length, molecular volume, harmonic vibrational frequency, and other thermodynamic parameters. Here, we used the improved volume variable cluster model (VVCM) method to optimize the molecular clusters of a typical oxide, quartz. We documented the average bond length and relative volume change. Finally, we extracted the harmonic vibrational frequencies and calculated the equilibrium fractionation factor of the silicon and oxygen isotopes. Given its performance in geometrical optimization and isotope fractionation factor calculation, we further applied the improved VVCM method to calculate isotope equilibrium fractionation factors of Cd and Zn between the hydroxide (Zn-Al layered double hydroxide), carbonate (cadmium-containing calcite) and their aqueous solutions under superficial conditions. We summarized a detailed procedure and used it to re-evaluate published theoretical results for cadmium-containing hydroxyapatite, emphasizing the relative volume change for all clusters and confirming the optimal point charge arrangement (PCA). The results showed that the average bond length and isotope fractionation factor are consistent with those published in previous studies, and the relative volume changes are considerably lower than the results calculated using the periodic boundary method. Specifically, the average Si-O bond length of quartz was 1.63 Å, and the relative volume change of quartz centered on silicon atoms was - 0.39%. The average Zn-O bond length in the Zn-Al-layered double hydroxide was 2.10 Å, with a relative volume change of 1.96%. Cadmium-containing calcite had an average Cd-O bond length of 2.28 Å, with a relative volume change of 0.45%. At 298 K, the equilibrium fractionation factors between quartz, Zn-Al-layered double hydroxide, cadmium-containing calcite, and their corresponding aqueous solutions were [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] respectively. These results strongly support the reliability of the improved VVCM method for geometric optimization of molecular clusters.
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Affiliation(s)
- Yan-Fang Wang
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Xin-Yue Ji
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Le-Cai Xing
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
- Key Laboratory of Resource Survey and Research of Hebei Province, Hebei University of Engineering, Handan, 056038, China
| | - Peng-Dong Wang
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Jian Liu
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Tian-Di Zhang
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Hao-Nan Zhao
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Hong-Tao He
- School of Earth Science and Engineering, Hebei University of Engineering, Handan, 056038, China.
- Key Laboratory of Resource Survey and Research of Hebei Province, Hebei University of Engineering, Handan, 056038, China.
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14
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Polsin DN, Lazicki A, Gong X, Burns SJ, Coppari F, Hansen LE, Henderson BJ, Huff MF, McMahon MI, Millot M, Paul R, Smith RF, Eggert JH, Collins GW, Rygg JR. Structural complexity in ramp-compressed sodium to 480 GPa. Nat Commun 2022; 13:2534. [PMID: 35534461 PMCID: PMC9085792 DOI: 10.1038/s41467-022-29813-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 03/30/2022] [Indexed: 11/09/2022] Open
Abstract
The properties of all materials at one atmosphere of pressure are controlled by the configurations of their valence electrons. At extreme pressures, neighboring atoms approach so close that core-electron orbitals overlap, and theory predicts the emergence of unusual quantum behavior. We ramp-compress monovalent elemental sodium, a prototypical metal at ambient conditions, to nearly 500 GPa (5 million atmospheres). The 7-fold increase of density brings the interatomic distance to 1.74 Å well within the initial 2.03 Å of the Na+ ionic diameter, and squeezes the valence electrons into the interstitial voids suggesting the formation of an electride phase. The laser-driven compression results in pressure-driven melting and recrystallization in a billionth of a second. In situ x-ray diffraction reveals a series of unexpected phase transitions upon recrystallization, and optical reflectivity measurements show a precipitous decrease throughout the liquid and solid phases, where the liquid is predicted to have electronic localization. These data reveal the presence of a rich, temperature-driven polymorphism where core electron overlap is thought to stabilize the formation of peculiar electride states.
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Affiliation(s)
- Danae N Polsin
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA.
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA.
| | - Amy Lazicki
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Xuchen Gong
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA
| | - Stephen J Burns
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA
| | | | - Linda E Hansen
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - Brian J Henderson
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - Margaret F Huff
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - Malcolm I McMahon
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Edinburgh, UK
| | - Marius Millot
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Reetam Paul
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA
| | | | - Jon H Eggert
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Gilbert W Collins
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - J Ryan Rygg
- University of Rochester Laboratory for Laser Energetics, Rochester, NY, USA
- Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
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15
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Wei X, Wang J. Pressure-Induced Structural Phase Transition in EuNi 2P 2. ACS OMEGA 2022; 7:15200-15205. [PMID: 35572745 PMCID: PMC9089697 DOI: 10.1021/acsomega.2c01325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
EuNi2P2 was studied with a diamond anvil cell (DAC) and X-ray diffraction (XRD). The structural evolution of powder crystal EuNi2P2 under high pressure up to 137 GPa and its single-crystal structure up to 9 GPa were reported. The unique structural phase transition of this 122-type crystal occurred above 70 GPa in powder crystal EuNi2P2. The diffraction data from single-crystal EuNi2P2 revealed the coordinate change of the P atom, and the stability of the crystal at 9 GPa was confirmed. The crystal EuNi2P2 remained stable with a tetragonal phase without obvious symmetry changes during compression to 137 GPa.
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Affiliation(s)
- Xuehui Wei
- Center for High Pressure
Science and Technology Advanced Research, Beijing 10094, China
| | - Jianzong Wang
- Center for High Pressure
Science and Technology Advanced Research, Beijing 10094, China
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16
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Weck G, Queyroux JA, Ninet S, Datchi F, Mezouar M, Loubeyre P. Evidence and Stability Field of fcc Superionic Water Ice Using Static Compression. PHYSICAL REVIEW LETTERS 2022; 128:165701. [PMID: 35522490 DOI: 10.1103/physrevlett.128.165701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/21/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Structural transformation of hot dense water ice is investigated by combining synchrotron x-ray diffraction and a laser-heating diamond anvil cell above 25 GPa. A transition from the body-centered-cubic (bcc) to face-centered-cubic (fcc) oxygen atoms sublattices is observed from 57 GPa and 1500 K to 166 GPa and 2500 K. That is the structural signature of the transition to fcc superionic (fcc SI) ice. The sign of the density discontinuity at the transition is obtained and a phase diagram is disclosed, showing an extended fcc SI stability field. Present data also constrain the stability field of the bcc superionic (bcc SI) ice up to 100 GPa at least. The current understanding of warm dense water ice based on ab initio simulations is discussed in the light of present data.
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Affiliation(s)
- Gunnar Weck
- CEA, DAM, DIF, F-91297 Arpajon, France
- Université Paris Saclay, Lab Matiere Condit Extremes, CEA, F-91680 Bruyeres Le Chatel, France
| | | | - Sandra Ninet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, IRD UMR 206, MNHN, 4 place Jussieu, F-75005 Paris, France
| | - Frédéric Datchi
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, IRD UMR 206, MNHN, 4 place Jussieu, F-75005 Paris, France
| | - Mohamed Mezouar
- European Synchrotron Radiation Facility, Boîte Postale 220, 38043 Grenoble, France
| | - Paul Loubeyre
- CEA, DAM, DIF, F-91297 Arpajon, France
- Université Paris Saclay, Lab Matiere Condit Extremes, CEA, F-91680 Bruyeres Le Chatel, France
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17
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Abstract
Mica nanosheets possess peculiar feature of narrowed bandgap with the decrease of thickness but a conclusive theoretical understanding of the narrowing mechanisms is still under development. In this report, first-principles calculations were carried out to investigate the electronic band structure of mica nanosheets with the deposition of K2CO3. Bulk mica shows an indirect bandgap of 4.90 eV. Mica nanosheets show similar electronic structures to bulk mica with a gradually increased bandgap of 4.44 eV, 4.52 eV and 4.67 eV for 1-layer, 2-layers and 3-layers nanosheets, respectively, which is attributed to the lattice relaxation. K2CO3 is found to have strong affinity towards mica nanosheets. The K2CO3 deposited mica nanosheets showed an increased bandgap with the increase of thickness, consistent with experimental observations. The calculated bandgap of K2CO3 deposited mica for 2-layers and 3-layers nanosheets are 2.60 eV and 2.75 eV, respectively, which are comparable with the corresponding experimental values of 2.5 eV and 3.0 eV. Our theoretical findings support the experimental evidence of surface contamination of mica by K2CO3, and provide new insight into the structure and properties of 2D mica.
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18
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Cawkwell MJ, Zecevic M, Luscher DJ, Ramos KJ. Dependence of the Elastic Stiffness Tensors of PETN, α‐RDX, γ‐RDX, ϵ‐RDX, ϵ‐CL‐20, DAAF, FOX‐7, and β‐HMX on Hydrostatic Compression. PROPELLANTS EXPLOSIVES PYROTECHNICS 2022. [DOI: 10.1002/prep.202100281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Milovan Zecevic
- Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - D. J. Luscher
- Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Kyle J. Ramos
- Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
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19
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Zhan N, Kitchin JR. Model-Specific to Model-General Uncertainty for Physical Properties. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ni Zhan
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes, Ave, Pittsburgh, Pennsylvania 15213, United States
| | - John R. Kitchin
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes, Ave, Pittsburgh, Pennsylvania 15213, United States
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20
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Martín-Sánchez C, Sánchez-Iglesias A, Barreda-Argüeso JA, Polian A, Itié JP, Pérez J, Mulvaney P, Liz-Marzán LM, Rodríguez F. On the Stiffness of Gold at the Nanoscale. ACS NANO 2021; 15:19128-19137. [PMID: 34668378 PMCID: PMC8717628 DOI: 10.1021/acsnano.1c06947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/14/2021] [Indexed: 05/20/2023]
Abstract
The density and compressibility of nanoscale gold (both nanospheres and nanorods) and microscale gold (bulk) were simultaneously studied by X-ray diffraction with synchrotron radiation up to 30 GPa. Colloidal stability (aggregation state and nanoparticle shape and size) in both hydrostatic and nonhydrostatic regions was monitored by small-angle X-ray scattering. We demonstrate that nonhydrostatic effects due to solvent solidification had a negligible influence on the stability of the nanoparticles. Conversely, nonhydrostatic effects produced axial stresses on the nanoparticle up to a factor 10× higher than those on the bulk metal. Working under hydrostatic conditions (liquid solution), we determined the equation of state of individual nanoparticles. From the values of the lattice parameter and bulk modulus, we found that gold nanoparticles are slightly denser (0.3%) and stiffer (2%) than bulk gold: V0 = 67.65(3) Å3, K0 = 170(3)GPa, at zero pressure.
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Affiliation(s)
- Camino Martín-Sánchez
- MALTA
Consolider, DCITIMAC, Facultad de Ciencias, University of Cantabria, Av. Los Castros 48, Santander, 39005, Spain
| | - Ana Sánchez-Iglesias
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - José Antonio Barreda-Argüeso
- MALTA
Consolider, DCITIMAC, Facultad de Ciencias, University of Cantabria, Av. Los Castros 48, Santander, 39005, Spain
| | - Alain Polian
- Synchrotron
SOLEIL, L’Orme
des Merisiers St. Aubin, BP48, 91192 Gif-sur-Yvette, France
- IMPMC,
Sorbonne Université and CNRS, 4 Place Jussieu, 75005 Paris, France
| | - Jean-Paul Itié
- Synchrotron
SOLEIL, L’Orme
des Merisiers St. Aubin, BP48, 91192 Gif-sur-Yvette, France
| | - Javier Pérez
- Synchrotron
SOLEIL, L’Orme
des Merisiers St. Aubin, BP48, 91192 Gif-sur-Yvette, France
| | - Paul Mulvaney
- ARC
Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Victoria, 3010, Australia
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
- Ikerbasque,
Basque Foundation for Science, Bilbao, 43018, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Fernando Rodríguez
- MALTA
Consolider, DCITIMAC, Facultad de Ciencias, University of Cantabria, Av. Los Castros 48, Santander, 39005, Spain
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21
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Geng J, Wu J. First principles study of the electronic structure and optical properties of triphenylene under pressure. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1955991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian Geng
- Nanchang Institute of Technology, Nanchang, People’s Republic of China
| | - Jin Wu
- Nanchang Institute of Technology, Nanchang, People’s Republic of China
- Jiangxi Science and Technology Normal University, Nanchang, People’s Republic of China
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22
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Ouyang W, Sofer R, Gao X, Hermann J, Tkatchenko A, Kronik L, Urbakh M, Hod O. Anisotropic Interlayer Force Field for Transition Metal Dichalcogenides: The Case of Molybdenum Disulfide. J Chem Theory Comput 2021; 17:7237-7245. [PMID: 34719931 PMCID: PMC8592503 DOI: 10.1021/acs.jctc.1c00782] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 11/28/2022]
Abstract
An anisotropic interlayer force field that describes the interlayer interactions in molybdenum disulfide (MoS2) is presented. The force field is benchmarked against density functional theory calculations for both bilayer and bulk systems within the Heyd-Scuseria-Ernzerhof hybrid density functional approximation, augmented by a nonlocal many-body dispersion treatment of long-range correlation. The parametrization yields good agreement with the reference calculations of binding energy curves and sliding potential energy surfaces for both bilayer and bulk configurations. Benchmark calculations for the phonon spectra of bulk MoS2 provide good agreement with experimental data, and the calculated bulk modulus falls in the lower part of experimentally measured values. This indicates the accuracy of the interlayer force field near equilibrium. Under external pressures up to 20 GPa, the developed force field provides a good description of compression curves. At higher pressures, deviations from experimental data grow, signifying the validity range of the developed force field.
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Affiliation(s)
- Wengen Ouyang
- Department
of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Reut Sofer
- School
of Chemistry and The Sackler Center for Computational Molecular and
Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Xiang Gao
- School
of Chemistry and The Sackler Center for Computational Molecular and
Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Jan Hermann
- Machine
Learning Group, TU Berlin, Marchstr. 23, 10587 Berlin, Germany
- Department
of Mathematics, FU Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Alexandre Tkatchenko
- Department
of Physics and Materials Science, University
of Luxembourg, L-1511 Luxembourg City, Luxembourg
| | - Leeor Kronik
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth 76100, Israel
| | - Michael Urbakh
- School
of Chemistry and The Sackler Center for Computational Molecular and
Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Oded Hod
- School
of Chemistry and The Sackler Center for Computational Molecular and
Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
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23
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Erden Gulebaglan S. First-principles investigation of structural and electronic properties of Tl xAl 1−xP ternary alloys. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2021. [DOI: 10.1080/16583655.2021.1991731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Sinem Erden Gulebaglan
- Department of Electric Program, Vacational School of Van, Van Yuzuncu Yıl University, Van, Turkey
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24
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Yao M, Wang Y, Li X, Sheng Y, Huo H, Xi L, Yang J, Zhang W. Materials informatics platform with three dimensional structures, workflow and thermoelectric applications. Sci Data 2021; 8:236. [PMID: 34493728 PMCID: PMC8423787 DOI: 10.1038/s41597-021-01022-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 08/10/2021] [Indexed: 11/08/2022] Open
Abstract
Since the proposal of the "Materials Genome Initiative", several material databases have emerged and advanced many materials fields. In this work, we present the Materials Informatics Platform with Three-Dimensional Structures (MIP-3d). More than 80,000 structural entries, mainly from the inorganic crystal structural database, are included in MIP-3d. Density functional theory calculations are carried out for over 30,000 entries in the database, which contain the relaxed crystal structures, density of states, and band structures. The calculation of the equations of state and sound velocities is performed for over 12,000 entries. Notably, for entries with band gap values larger than 0.3 eV, the band degeneracies for the valence band maxima and the conduction band minima are analysed. The electrical transport properties for approximately 4,400 entries are also calculated and presented in MIP-3d under the constant electron-phonon coupling approximation. The calculations of the band degeneracies and electrical transport properties make MIP-3d a database specifically designed for thermoelectric applications.
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Affiliation(s)
- Mingjia Yao
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Yuxiang Wang
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Xin Li
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Ye Sheng
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Haiyang Huo
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Lili Xi
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Jiong Yang
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China.
| | - Wenqing Zhang
- Department of Physics and Shenzhen Institute for Quantum Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Lab for Computational Science and Materials Design, and Shenzhen Municipal Key-Lab for Advanced Quantum Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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25
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Hernández-Huerta E, Santamaria R, Rocha-Rinza T. Thermodynamics from Lagrangian theory and its applications to nanosize particle systems. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1940333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Ruben Santamaria
- Departamento de Física Teórica, Instituto de Física, UNAM, Mexico D.F., México
| | - Tomás Rocha-Rinza
- Departamento de Físicoquímica, Instituto de Química, UNAM, Coyoacan, México
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26
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Cawkwell MJ, Zecevic M, Luscher DJ, Ramos KJ. Complete Equations of State for Cyclotetramethylene Tetranitramine. PROPELLANTS EXPLOSIVES PYROTECHNICS 2021. [DOI: 10.1002/prep.202000274] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Milovan Zecevic
- Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | | | - Kyle J. Ramos
- Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
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27
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Guńka PA, Olejniczak A, Fanetti S, Bini R, Collings IE, Svitlyk V, Dziubek KF. Crystal Structure and Non-Hydrostatic Stress-Induced Phase Transition of Urotropine Under High Pressure. Chemistry 2021; 27:1094-1102. [PMID: 33095457 DOI: 10.1002/chem.202003928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Indexed: 11/07/2022]
Abstract
High-pressure behavior of hexamethylenetetramine (urotropine) was studied in situ using angle-dispersive single-crystal synchrotron X-ray diffraction (XRD) and Fourier-transform infrared absorption (FTIR) spectroscopy. Experiments were conducted in various pressure-transmitting media to study the effect of deviatoric stress on phase transformations. Up to 4 GPa significant damping of molecular librations and atomic thermal motion was observed. A first-order phase transition to a tetragonal structure was observed with an onset at approximately 12.5 GPa and characterized by sluggish kinetics and considerable hysteresis upon decompression. However, it occurs only in non-hydrostatic conditions, induced by deviatoric or uniaxial stress in the sample. This behavior finds analogies in similar cubic crystals built of highly symmetric cage-like molecules and may be considered a common feature of such systems. DFT computations were performed to model urotropine equation of state and pressure dependence of vibrational modes. The first successful Hirshfeld atom refinements carried out for high-pressure diffraction data are reported. The refinements yielded more realistic C-H bond lengths than the independent atom model even though the high-pressure diffraction data are incomplete.
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Affiliation(s)
- Piotr A Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00664, Warszawa, Poland
| | - Anna Olejniczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61614, Poznań, Poland
| | - Samuele Fanetti
- Instituto di Chimica dei Composti Organo-Metallici, CNR-ICCOM, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy.,LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019, Sesto Fiorentino, Italy
| | - Roberto Bini
- Instituto di Chimica dei Composti Organo-Metallici, CNR-ICCOM, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy.,LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019, Sesto Fiorentino, Italy.,Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 13, 50019, Sesto Fiorentino, Italy
| | - Ines E Collings
- European Synchrotron Radiation Facility 71, avenue des Martyrs, CS 40220, 38043, Grenoble, France.,current address: Center for X-ray Analytics, Empa-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Volodymyr Svitlyk
- European Synchrotron Radiation Facility 71, avenue des Martyrs, CS 40220, 38043, Grenoble, France
| | - Kamil F Dziubek
- LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019, Sesto Fiorentino, Italy
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28
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Guńka PA, Hanfland M, Chen YS, Zachara J. High-pressure and low-temperature structural study of claudetite I, a monoclinic layered As 2O 3 polymorph. CrystEngComm 2021. [DOI: 10.1039/d0ce01401j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
High-pressure structural studies of claudetite I reveal that it exhibits the lowest As coordination numbers despite being the densest As2O3 polymorph.
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Affiliation(s)
- Piotr A. Guńka
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warszawa
- Poland
| | | | - Yu-Sheng Chen
- NSF's ChemMatCARS
- Center for Advanced Radiation Source
- The University of Chicago
- Lemont
- USA
| | - Janusz Zachara
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warszawa
- Poland
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29
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Korabel'nikov DV, Zhuravlev YN. Semi-empirical and ab initio calculations for crystals under pressure at fixed temperatures: the case of guanidinium perchlorate. RSC Adv 2020; 10:42204-42211. [PMID: 35516730 PMCID: PMC9057916 DOI: 10.1039/d0ra08588j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/13/2020] [Indexed: 01/05/2023] Open
Abstract
A simple semi-empirical approach is proposed to calculate structure and properties of crystals under pressure at fixed temperatures. The computed semi-empirical pressure dependencies for guanidinium perchlorate are in good agreement with available experimental data. Ab initio results within quasi-harmonic approximation for guanidinium perchlorate are also presented.
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Affiliation(s)
- Dmitry V Korabel'nikov
- Institute of Fundamental Sciences, Kemerovo State University Krasnaya 6 650043 Kemerovo Russia
| | - Yuriy N Zhuravlev
- Institute of Fundamental Sciences, Kemerovo State University Krasnaya 6 650043 Kemerovo Russia
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30
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Queyroux JA, Hernandez JA, Weck G, Ninet S, Plisson T, Klotz S, Garbarino G, Guignot N, Mezouar M, Hanfland M, Itié JP, Datchi F. Melting Curve and Isostructural Solid Transition in Superionic Ice. PHYSICAL REVIEW LETTERS 2020; 125:195501. [PMID: 33216588 DOI: 10.1103/physrevlett.125.195501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
The phase diagram and melting curve of water ice is investigated up to 45 GPa and 1600 K by synchrotron x-ray diffraction in the resistively and laser heated diamond anvil cell. Our melting data evidence a triple point at 14.6 GPa, 850 K. The latter is shown to be related to a first-order solid transition from the dynamically disordered form of ice VII, denoted ice VII^{'}, toward a high-temperature phase with the same bcc oxygen lattice but larger volume and higher entropy. Our experiments are compared to ab initio molecular dynamics simulations, enabling us to identify the high-temperature bcc phase with the predicted superionic ice VII^{''} phase [J.-A. Hernandez and R. Caracas, Phys. Rev. Lett. 117, 135503 (2016).PRLTAO0031-900710.1103/PhysRevLett.117.135503].
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Affiliation(s)
- J-A Queyroux
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, Muséum National d'Histoire Naturelle, 4 place Jussieu, F-75005 Paris, France
- Commissariat à l'Energie Atomique (CEA), Direction des Applications Militaires (DAM), DAM Ile-de-France (DIF), F-91297 Arpajon, France
| | - J-A Hernandez
- Centre for Earth Evolution and Dynamics, University of Oslo, 1028 Blindern, N-0315 Oslo, Norway
| | - G Weck
- Commissariat à l'Energie Atomique (CEA), Direction des Applications Militaires (DAM), DAM Ile-de-France (DIF), F-91297 Arpajon, France
| | - S Ninet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, Muséum National d'Histoire Naturelle, 4 place Jussieu, F-75005 Paris, France
| | - T Plisson
- Commissariat à l'Energie Atomique (CEA), Direction des Applications Militaires (DAM), DAM Ile-de-France (DIF), F-91297 Arpajon, France
| | - S Klotz
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, Muséum National d'Histoire Naturelle, 4 place Jussieu, F-75005 Paris, France
| | - G Garbarino
- European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - N Guignot
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - M Mezouar
- European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - M Hanfland
- European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - J-P Itié
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - F Datchi
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, Muséum National d'Histoire Naturelle, 4 place Jussieu, F-75005 Paris, France
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31
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Friedrich A, Collings IE, Dziubek KF, Fanetti S, Radacki K, Ruiz-Fuertes J, Pellicer-Porres J, Hanfland M, Sieh D, Bini R, Clark SJ, Marder TB. Pressure-Induced Polymerization of Polycyclic Arene-Perfluoroarene Cocrystals: Single Crystal X-ray Diffraction Studies, Reaction Kinetics, and Design of Columnar Hydrofluorocarbons. J Am Chem Soc 2020; 142:18907-18923. [PMID: 33095990 DOI: 10.1021/jacs.0c09021] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Pressure-induced polymerization of aromatic compounds leads to novel materials containing sp3 carbon-bonded networks. The choice of the molecular species and the control of their arrangement in the crystal structures via intermolecular interactions, such as the arene-perfluoroarene interaction, can enable the design of target polymers. We have investigated the crystal structure compression and pressure-induced polymerization reaction kinetics of two polycyclic 1:1 arene-perfluoroarene cocrystals, naphthalene/octafluoronaphthalene (NOFN) and anthracene/octafluoronaphthalene (AOFN), up to 25 and 30 GPa, respectively, using single-crystal synchrotron X-ray diffraction, infrared spectroscopy, and theoretical computations based on density-functional theory. Our study shows the remarkable pressure stability of the parallel arene-perfluoroarene π-stacking arrangement and a reduction of the interplanar π-stacking separations by ca. 19-22% before the critical reaction distance is reached. A further strong, discontinuous, and irreversible reduction along the stacking direction at 20 GPa in NOFN (18.8%) and 25 GPa in AOFN (8.7%) indicates the pressure-induced breakdown of π-stacking by formation of σ-bonded polymers. The association of the structural distortion with the occurrence of a chemical reaction is confirmed by a high-pressure kinetic study using infrared spectroscopy, indicating one-dimensional polymer growth. Structural predictions for the fully polymerized high-pressure phases consisting of highly ordered rods of hydrofluorocarbons are presented based on theoretical computations, which are in excellent agreement with the experimentally determined unit-cell parameters. We show that the polymerization takes place along the arene-perfluoroarene π-stacking direction and that the lateral extension of the columns depends on the extension of the arene and perfluoroarene molecules.
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Affiliation(s)
- Alexandra Friedrich
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ines E Collings
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Kamil F Dziubek
- LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italy
| | - Samuele Fanetti
- LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italy.,ICCOM-CNR, Institute of Chemistry of OrganoMetallic Compounds, National Research Council of Italy, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Krzysztof Radacki
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Javier Ruiz-Fuertes
- MALTA Consolider Team, Departamento Física Aplicada-ICMUV, Universitat de València, C/Doctor Moliner 50, 46100 Burjassot, Spain.,DCITIMAC, MALTA Consolider Team, Universidad de Cantabria, 39005 Santander, Spain
| | - Julio Pellicer-Porres
- MALTA Consolider Team, Departamento Física Aplicada-ICMUV, Universitat de València, C/Doctor Moliner 50, 46100 Burjassot, Spain
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Daniel Sieh
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Roberto Bini
- LENS, European Laboratory for Nonlinear Spectroscopy, Via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italy.,ICCOM-CNR, Institute of Chemistry of OrganoMetallic Compounds, National Research Council of Italy, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Firenze, Italy.,Dipartimento di Chimica "Ugo Schiff" dell'Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy
| | - Stewart J Clark
- Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, United Kingdom
| | - Todd B Marder
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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32
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Wu J, Geng J. First-principle calculations of electronic and optical properties of SrCO3 compound under high pressure. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1820003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jin Wu
- Nanchang Institute of Technology, Nanchang, People’s Republic of China
- Jiangxi Science and Technology Normal University, Nanchang, People’s Republic of China
| | - Jian Geng
- Nanchang Institute of Technology, Nanchang, People’s Republic of China
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33
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Erlebach A, Thieme C, Müller C, Hoffmann S, Höche T, Rüssel C, Sierka M. Thermomechanical properties of zero thermal expansion materials from theory and experiments. Phys Chem Chem Phys 2020; 22:18518-18525. [PMID: 32780039 DOI: 10.1039/d0cp02975k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Origin and composition dependence of the anisotropic thermomechanical properties are elucidated for Ba1-xSrxZn2Si2O7 (BZS) solid solutions. The high-temperature phase of BZS shows negative thermal expansion (NTE) along one crystallographic axis and highly anisotropic elastic properties characterized by X-ray diffraction experiments and simulations at the density functional theory level. Ab initio molecular dynamics simulations provide accurate predictions of the anisotropic thermal expansion in excellent agreement with experimental observations. The NTE considerably decreases with increasing Sr content x. This is connected with the composition dependence of the vibrational density of states (VDOS) and the anisotropic Grüneisen parameters. The VDOS shifts to higher frequencies between 0-5 THz due to substitution of Ba with Sr. In the same frequency range, vibrational modes contributing most to the NTE are found. In addition, phonon calculations using the quasi-harmonic approximation revealed that the NTE is mainly connected with deformation of four-membered rings formed by SiO4 and ZnO4 tetrahedra. The thermomechanical and vibrational properties obtained in this work provide the basis for future studies facilitating the targeted design of BZS solid solutions as zero or negative thermal expansion material.
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Affiliation(s)
- Andreas Erlebach
- Otto Schott Institute of Materials Research, Friedrich Schiller University of Jena, Löbdergraben 32, 07743 Jena, Germany.
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34
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Wang Q, Zhou Q. Electronic and optical properties of biphenylene under pressure: first-principles calculations. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1797018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Qinglin Wang
- Jiangxi University of Technology, Nanchang, People's Republic of China
| | - Qinghua Zhou
- Jiangxi University of Technology, Nanchang, People's Republic of China
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35
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Yang X, Zhan Q. Investigation on the electrical and optical properties of forsterite Mg2SiO4 under pressure up to 30 GPa. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1714611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xiaohong Yang
- Jiangxi Science and Technology University, Nanchang, People’s Republic of China
| | - Qinghua Zhan
- Jiangxi Science and Technology University, Nanchang, People’s Republic of China
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36
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Equations of State of Simple Solids (Including Pb, NaCl and LiF) Compressed in Helium or Neon in the Mbar Range. MINERALS 2019. [DOI: 10.3390/min9110684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The equations of state measured under ambient temperature in the Mbar range are reviewed, focusing on experiments using diamond anvils cells with a quasi-hydrostatic pressure transmitting medium (helium or neon) and coupled with X-ray diffraction. Equations of state (EoS) parameters are listed with an unified pressure metrology for all data. This metrology is based on the efforts made in the 2000s to update the ruby luminescence pressure scale, after the collection of original data. To complete this database, unpublished P-V data for lead (Pb), sodium chloride (NaCl) and lithium fluoride (LiF) are also provided with the same metrology. Systematic effects of the pressure metrology on the EoS parameters are discussed.
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37
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Ground-State and Thermodynamical Properties of Uranium Mononitride from Anharmonic First-Principles Theory. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9183914] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We report on an advanced density-functional theory (DFT) approach for investigating the ground-state and thermodynamical properties of uranium mononitride (UN). The electronic structure for UN at zero temperature is obtained from DFT that utilizes the generalized gradient approximation (GGA) for the electron exchange and correlation functional and includes spin-orbit interaction and an extension with orbital polarization. Thermodynamical properties are computed within the quasi-harmonic approximation in the Debye–Grüneisen model while anharmonicity is captured in the self-consistent ab initio lattice dynamics (SCAILD) scheme. Anharmonic phonons have heretofore never been modeled from first-principles for UN but they turn out to be important. The computed free energy compares well with that of a CALPHAD (CALculation of PHAse Diagrams) assessment of available experimental data.
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38
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Poręba T, Ernst M, Zimmer D, Macchi P, Casati N. Pressure‐Induced Polymerization and Electrical Conductivity of a Polyiodide. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomasz Poręba
- Laboratory for Synchrotron Radiation—Condensed MatterPaul Scherrer Institute 5232 Villigen–PSI Switzerland
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Michelle Ernst
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Dominik Zimmer
- Institute of GeosciencesGoethe-University Frankfurt, Crystallography/Mineralogy Altenhoeferallee 1 60438 Frankfurt am Main Germany
| | - Piero Macchi
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
- Department of ChemistryMaterials and Chemical Engineering Polytechnic of Milan Via Mancinelli 7 20131 Milano Italy
| | - Nicola Casati
- Laboratory for Synchrotron Radiation—Condensed MatterPaul Scherrer Institute 5232 Villigen–PSI Switzerland
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39
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Poręba T, Ernst M, Zimmer D, Macchi P, Casati N. Pressure-Induced Polymerization and Electrical Conductivity of a Polyiodide. Angew Chem Int Ed Engl 2019; 58:6625-6629. [PMID: 30844119 DOI: 10.1002/anie.201901178] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Indexed: 11/11/2022]
Abstract
We report the high-pressure structural characterization of an organic polyiodide salt in which a progressive addition of iodine to triiodide groups occurs. Compression leads to the initial formation of discrete heptaiodide units, followed by polymerization to a 3D anionic network. Although the structural changes appear to be continuous, the insulating salt becomes a semiconducting polymer above 10 GPa. The features of the pre-reactive state and the polymerized state are revealed by analysis of the computed electron and energy densities. The unusually high electrical conductivity can be explained with the formation of new bonds.
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Affiliation(s)
- Tomasz Poręba
- Laboratory for Synchrotron Radiation-Condensed Matter, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland.,Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Michelle Ernst
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Dominik Zimmer
- Institute of Geosciences, Goethe-University Frankfurt, Crystallography/Mineralogy, Altenhoeferallee 1, 60438, Frankfurt am Main, Germany
| | - Piero Macchi
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.,Department of Chemistry, Materials and Chemical Engineering Polytechnic of Milan, Via Mancinelli 7, 20131, Milano, Italy
| | - Nicola Casati
- Laboratory for Synchrotron Radiation-Condensed Matter, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
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40
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Evidence for Crystalline Structure in Dynamically-Compressed Polyethylene up to 200 GPa. Sci Rep 2019; 9:4196. [PMID: 30862904 PMCID: PMC6414497 DOI: 10.1038/s41598-019-40782-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 02/04/2019] [Indexed: 11/08/2022] Open
Abstract
We investigated the high-pressure behavior of polyethylene (CH2) by probing dynamically-compressed samples with X-ray diffraction. At pressures up to 200 GPa, comparable to those present inside icy giant planets (Uranus, Neptune), shock-compressed polyethylene retains a polymer crystal structure, from which we infer the presence of significant covalent bonding. The A2/m structure which we observe has previously been seen at significantly lower pressures, and the equation of state measured agrees with our findings. This result appears to contrast with recent data from shock-compressed polystyrene (CH) at higher temperatures, which demonstrated demixing and recrystallization into a diamond lattice, implying the breaking of the original chemical bonds. As such chemical processes have significant implications for the structure and energy transfer within ice giants, our results highlight the need for a deeper understanding of the chemistry of high pressure hydrocarbons, and the importance of better constraining planetary temperature profiles.
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41
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Liu G, Zhou J. First-principles study of thermal expansion and thermomechanics of group-V monolayers: blue phosphorene, arsenene, and antimonene. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:065302. [PMID: 30523811 DOI: 10.1088/1361-648x/aaf413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using first-principles calculations based on quasiharmonic approximation (QHA), we systematically investigate the vibrational properties, thermal expansion and thermomechanics properties of three monoatomic group-V monolayers with honeycomb structure: blue phosphorene, arsenene and antimonene. It is found antimonene shows negative thermal expansion in the temperature range studied, while blue phosphorene and arsenene display small positive thermal expansion at high temperature. The physical mechanisms of their different thermal properties are explored. The results of Grüneisen theory are also exhibited for comparison, and the similarities and differences are studied. It is concluded the discrepancies arise from the high order anharmonicity of phonons.
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Affiliation(s)
- Gang Liu
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang, People's Republic of China
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42
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Benz S, Möller A, Marioneck T, Hofmann M, Brenk J, Dronskowski R. Construction of a hybrid clamped cell for high-pressure neutron-diffraction experiments with a large diamond window. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:026103. [PMID: 30831751 DOI: 10.1063/1.5066365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
A hybrid pressure cell was fabricated from commercially available copper-beryllium and custom-made Ni-Cr-Al Russian alloy, tailored for usage as a reaction vessel supplying a volume of about 400 mm3. In order to directly (in situ) monitor pressure and chemical reactions within the chamber, a large diamond window suitable for spectroscopic sample analysis was implemented. The performance of the hybrid cell was validated from high-pressure neutron-diffraction measurements on carbon dioxide.
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Affiliation(s)
- S Benz
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Möller
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Marioneck
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Hofmann
- Research Neutron Source Heinz Maier-Leibnitz (FRM II), Technical University Munich, D-85748 Garching, Germany
| | - J Brenk
- Institute IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52056 Aachen, Germany
| | - R Dronskowski
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
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43
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Bull CL, Funnell NP, Ridley CJ, Pulham CR, Coster PL, Tellam JP, Marshall WG. Pressure-induced isosymmetric phase transition in biurea. CrystEngComm 2019. [DOI: 10.1039/c9ce01028a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An isosymmetric phase transition of biurea has been found in which the molecules appear to “snap” from one conformer to another upon compression.
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Affiliation(s)
- Craig L. Bull
- ISIS Neutron and Muon Facility
- Rutherford Appleton Laboratory
- Chilton
- U. K
| | | | | | - Colin R. Pulham
- EastCHEM School of Chemistry
- Joseph Black Building
- Edinburgh
- UK
| | - Paul L. Coster
- EastCHEM School of Chemistry
- Joseph Black Building
- Edinburgh
- UK
| | - James P. Tellam
- ISIS Neutron and Muon Facility
- Rutherford Appleton Laboratory
- Chilton
- U. K
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44
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Xiao L, Zeng L, Yang X. First principles study of the electronic structure and optical properties of chrysene under pressure. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1547819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lingping Xiao
- Jiangxi Science and Technology Normal University, Nanchang, People’s Republic of China
| | - Li Zeng
- Jiangxi Hongdu Aviation Industry Group Corporation Limited, Nanchang, People’s Republic of China
| | - Xue Yang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, People’s Republic of China
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45
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Košata J, Merkl P, Teeratchanan P, Hermann A. Stability of Hydrogen Hydrates from Second-Order Møller-Plesset Perturbation Theory. J Phys Chem Lett 2018; 9:5624-5629. [PMID: 30179509 DOI: 10.1021/acs.jpclett.8b02274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The formation of gas hydrates and clathrates critically depends on the interaction between the host water network and the guest gas species. Density functional calculations can struggle to quantitatively capture these dispersion-type interactions. Here, we report wave function-based calculations on hydrogen hydrates that combine periodic Hartree-Fock with a localized treatment of electronic correlation. We show that local second-order Møller-Plesset perturbation theory (LMP2) reproduces the stability of the different filled-ice-like hydrates in excellent agreement with experimental data. In contrast to various dispersion-corrected density functional theory implementations, LMP2 correctly identifies the pressures needed to stabilize the C0, C1, and C2 hydrates and does not find a spurious region of stability for an ice-Ih-based dihydrate. Our results suggest that LMP2 or similar approaches can provide quantitative insights into the mechanisms of formation and eventual decomposition of molecular host-guest compounds.
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Affiliation(s)
- Jan Košata
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Padryk Merkl
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Pattanasak Teeratchanan
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Andreas Hermann
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
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46
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Kroonblawd MP, Koroglu B, Zaug JM, Pagoria PF, Goldman N, Greenberg E, Prakapenka VB, Kunz M, Bastea S, Stavrou E. Effects of pressure on the structure and lattice dynamics of ammonium perchlorate: A combined experimental and theoretical study. J Chem Phys 2018; 149:034501. [PMID: 30037252 DOI: 10.1063/1.5030713] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Ammonium perchlorate NH4ClO4 (AP) was studied using synchrotron angle-dispersive X-ray powder diffraction (XRPD) and Raman spectroscopy. A diamond-anvil cell was used to compress AP up to 50 GPa at room temperature (RT). Density functional theory (DFT) calculations were performed to provide further insight and comparison to the experimental data. A high-pressure barite-type structure (Phase II) forms at ≈4 GPa and appears stable up to 40 GPa. Refined atomic coordinates for Phase II are provided, and details for the Phase I → II transition mechanics are outlined. Pressure-dependent enthalpies computed for DFT-optimized crystal structures confirm the Phase I → II transition sequence, and the interpolated transition pressure is in excellent agreement with the experiment. Evidence for additional (underlying) structural modifications include a marked decrease in the Phase II b'-axis compressibility starting at 15 GPa and an unambiguous stress relaxation in the normalized stress-strain response at 36 GPa. Above 47 GPa, XRD Bragg peaks begin to decrease in amplitude and broaden. The apparent loss of crystalline long-range order likely signals the onset of amorphization. Three isostructural modifications were discovered within Phase II via Raman spectroscopy. A revised RT isothermal phase diagram is discussed based on the findings of this study.
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Affiliation(s)
- Matthew P Kroonblawd
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Batikan Koroglu
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Joseph M Zaug
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Philip F Pagoria
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Nir Goldman
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Eran Greenberg
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
| | - Martin Kunz
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Sorin Bastea
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
| | - Elissaios Stavrou
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O. Box 808, Livermore, California 94550, USA
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47
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Manner VW, Cawkwell MJ, Kober EM, Myers TW, Brown GW, Tian H, Snyder CJ, Perriot R, Preston DN. Examining the chemical and structural properties that influence the sensitivity of energetic nitrate esters. Chem Sci 2018; 9:3649-3663. [PMID: 29780495 PMCID: PMC5941197 DOI: 10.1039/c8sc00903a] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 03/08/2018] [Indexed: 11/26/2022] Open
Abstract
The sensitivity of explosives is controlled by factors that span from intrinsic chemical reactivity and chemical intramolecular effects to mesoscale structure and defects, and has been a topic of extensive study for over 50 years. Due to these complex competing chemical and physical elements, a unifying relationship between molecular framework, crystal structure, and sensitivity has yet to be developed. In order to move towards this goal, ideally experimental studies should be performed on systems with small, systematic structural modifications, with modeling utilized to interpret experimental results. Pentaerythritol tetranitrate (PETN) is a common nitrate ester explosive that has been widely studied due to its use in military and commercial explosives. We have synthesized PETN derivatives with modified sensitivity characteristics by substituting one -CCH2ONO2 moiety with other substituents, including -CH, -CNH2, -CNH3X, -CCH3, and -PO. We relate the handling sensitivity properties of each PETN derivative to its structural properties, and discuss the potential roles of thermodynamic properties such as heat capacity and heat of formation, thermal stability, crystal structure, compressibility, and inter- and intramolecular hydrogen bonding on impact sensitivity. Reactive molecular dynamics (MD) simulations of the C/H/N/O-based PETN-derivatives have been performed under cook-off conditions that mimic those accessed in impact tests. These simulations infer how changes in chemistry affect the subsequent decomposition pathways.
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48
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Guńka PA, Hapka M, Hanfland M, Dranka M, Chałasiński G, Zachara J. How and Why Does Helium Permeate Nonporous Arsenolite Under High Pressure? Chemphyschem 2018; 19:857-864. [PMID: 29341365 DOI: 10.1002/cphc.201701156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/06/2017] [Indexed: 11/06/2022]
Abstract
Investigations into the helium permeation of arsenolite, the cubic, molecular arsenic(III) oxide polymorph As4 O6 , were carried out to understand how and why arsenolite helium clathrate As4 O6 ⋅2 He is formed. High-pressure synchrotron X-ray diffraction experiments on arsenolite single crystals revealed that the permeation of helium into nonporous arsenolite depends on the time for which the crystal is subjected to high pressure and on the crystal history. The single crystal was totally transformed into As4 O6 ⋅2 He within 45 h under 5 GPa. After release of the pressure, arsenolite was recovered and a repeated increase in pressure up to 3 GPa led to practically instant As4 O6 ⋅2 He formation. However, when a pristine arsenolite single crystal was quickly subjected to a pressure of 13 GPa, no helium permeation was observed at all. No neon permeation was observed in analogous experiments. Quantum mechanical computations indicate that there are no specific attractive interactions between He atoms and As4 O6 molecules at the distances observed in the As4 O6 ⋅2 He crystal structure. Detailed analysis of As4 O6 molecular structure changes has shown that the introduction of He into the arsenolite crystal lattice significantly reduces molecular deformations by decreasing the anisotropy of stress exerted on the As4 O6 molecules. This effect and the pΔV term, rather than any specific As⋅⋅⋅He binding, are the driving forces for the formation As4 O6 ⋅2 He.
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Affiliation(s)
- Piotr A Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warszawa, Poland
| | - Michał Hapka
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warszawa, Poland
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Maciej Dranka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warszawa, Poland
| | - Grzegorz Chałasiński
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warszawa, Poland
| | - Janusz Zachara
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warszawa, Poland
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Wang Q, Liang C, Zheng Y, Ashburn N, Oh YJ, Kong F, Zhang C, Nie Y, Sun J, He K, Ye Y, Chen R, Shan B, Cho K. First principles study of the Mn-doping effect on the physical and chemical properties of mullite-family Al 2SiO 5. Phys Chem Chem Phys 2018; 19:24991-25001. [PMID: 28876021 DOI: 10.1039/c7cp04611a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal (TM) modification is a common strategy for converting an earth-abundant mineral into a cost-effective catalyst for industrial applications. Among a variety of minerals, Al2SiO5, which has three phases, andalusite, sillimanite and kyanite, is emerging as a promising candidate for new catalyst development. In this paper, we use Mn to demonstrate the rationale of 3d TM doping at the Al sites in each of these three phases through first-principles calculations and the cluster expansion method. The results of cluster expansion show that Mn has a strong site preference for the six-coordinated Al octahedral chains in the andalusite and sillimanite phases, while distributing randomly in the kyanite phase. Moreover, Mn can only replace Al in sillimanite and kyanite in low concentrations; however, higher concentrations of Mn can replace Al in andalusite. We found that the concentration sensitivity is due to the Jahn-Teller distortion and 3d orbital splitting. This finding can also explain the low doping concentrations of other 3d TMs (Fe, Cr and V) in Al2SiO5 compounds. Based on the calculated Helmholtz free energy, we constructed a (MnxAl1-x)AlSiO5 temperature-composite phase diagram, which explains the physical mechanisms behind the results for 3d transition metal doping and phase transitions in Al2SiO5. This work could shed light on the related physics, chemistry, and geoscience of (MnxAl1-x)AlSiO5, and more importantly, a design rationale for the engineering of cheap catalysts.
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Affiliation(s)
- Qingbo Wang
- School of Mathematics and Physics and State Key Laboratory of Geological Processes and Mineral Resources and Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), Wuhan 430074, People's Republic of China
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50
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Myhill R. The elastic solid solution model for minerals at high pressures and temperatures. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY. BEITRAGE ZUR MINERALOGIE UND PETROLOGIE 2018; 173:12. [PMID: 31983760 PMCID: PMC6952047 DOI: 10.1007/s00410-017-1436-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/22/2017] [Indexed: 06/10/2023]
Abstract
Non-ideality in mineral solid solutions affects their elastic and thermodynamic properties, their thermobaric stability, and the equilibrium phase relations in multiphase assemblages. At a given composition and state of order, non-ideality in minerals is typically modelled via excesses in Gibbs free energy which are either constant or linear with respect to pressure and temperature. This approach has been extremely successful when modelling near-ideal solutions. However, when the lattice parameters of the solution endmembers differ significantly, extrapolations of thermodynamic properties to high pressures using these models may result in significant errors. In this paper, I investigate the effect of parameterising solution models in terms of the Helmholtz free energy, treating volume (or lattice parameters) rather than pressure as an independent variable. This approach has been previously applied to models of order-disorder, but the implications for the thermodynamics and elasticity of solid solutions have not been fully explored. Solid solution models based on the Helmholtz free energy are intuitive at a microscopic level, as they automatically include the energetic contribution from elastic deformation of the endmember lattices. A chemical contribution must also be included in such models, which arises from atomic exchange within the solution. Derivations are provided for the thermodynamic properties of n-endmember solutions. Examples of the use of the elastic model are presented for the alkali halides, pyroxene, garnet, and bridgmanite solid solutions. Elastic theory provides insights into the microscopic origins of non-ideality in a range of solutions, and can make accurate predictions of excess enthalpies, entropies, and volumes as a function of volume and temperature. In solutions where experimental data are sparse or contradictory, the Helmholtz free energy approach can be used to assess the magnitude of excess properties and their variation as a function of pressure and temperature. The formulation is expected to be useful for geochemical and geophysical studies of the Earth and other planetary bodies.
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Affiliation(s)
- R Myhill
- School of Earth Sciences, University of Bristol, Bristol, UK
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