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Zhang Y, Ding C, Zhang K, Pakhomova A, Chen S, Ding Y, Jiang S, Huang X, Sun J, Cui T. All-Single Bonds Fused N 18 Macro-Rings and N 8 Cagelike Building Blocks Stabilized in Lanthanum Supernitrides. J Am Chem Soc 2024. [PMID: 39225242 DOI: 10.1021/jacs.4c07955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Single-bonded polymeric nitrogen has gained tremendous research interest because of its unique physical properties and great potential applications. Despite much progress in theoretical predictions, it is still challenging to experimentally synthesize polynitrogen compounds with novel all-single-bonded units. Herein, we have synthesized two brand-new lanthanum supernitrides LaN8, through a direct reaction between La and N2 in laser-heated diamond anvil cells at megabar pressures. Our experiments and calculations revealed that two LaN8 phases had the R-3 and P4/n symmetry characterized by a unique 2D network with N18 macro-rings and cagelike N8 building blocks, respectively. Differing from known polynitrogen structures, these two polymers were composed of single-bonded nitrogen atoms belonging to sp3 and sp2 hybridizations. In particular, P4/n LaN8 possessed the longest N-N bond length among all of the experimentally reported metal nitrides, potentially being a high-energy-density material. The present study opens a fresh, promising avenue for the rational design and discovery of new supernitrides with unique nitrogen structures via the high-pressure treatment.
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Affiliation(s)
- Yuchen Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Chi Ding
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Kexin Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Anna Pakhomova
- European Synchrotron Radiation Facility, ESRF, 38043 Grenoble Cedex 9, France
| | - Su Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yingji Ding
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Shuqing Jiang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoli Huang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Jian Sun
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Tian Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
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2
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Shi H, Chen L, Moutaabbid H, Feng Z, Zhang G, Wang L, Li Y, Guo H, Liu C. Mechanism of Pressure-Modulated Self-Trapped Exciton Emission in Cs 2TeCl 6 Double Perovskite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405692. [PMID: 39221636 DOI: 10.1002/smll.202405692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/17/2024] [Indexed: 09/04/2024]
Abstract
Pressure-modulated self-trapped exciton (STE) emission mechanism in all-inorganic lead-free metal halide double perovskites characterized by large Stokes-shifted broadband emission, has attracted much attention across various fields such as optics, optoelectronics, and biomedical sciences. Here, by employing the all-inorganic lead-free metal halide double perovskite Cs2TeCl6 as a paradigm, the authors elucidate that the performance of STE emission can be modulated by pressure, attributable to the pressure-induced evolution of the electronic state (ES). Two ES transitions happen at pressures of 1.6 and 5.8 GPa, sequentially. The electronic behaviors of Cs2TeCl6 can be jointly modulated by both pressure and ES transitions. When the pressure reaches 1.6 GPa, the Huang-Rhys factor S, indicative of the strength of electron-phonon coupling, attains an optimum value of ≈12.0, correlating with the pressure-induced photoluminescence (PL) intensity of Cs2TeCl6 is 4.8-fold that of its PL intensity under ambient pressure. Through analyzing the pressure-dependent STE dynamic behavioral changes, the authors have revealed the microphysical mechanism underlying the pressure-modulated enhancement and quenching of STE emission in Cs2TeCl6.
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Affiliation(s)
- Han Shi
- School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, P. R. China
| | - Lin Chen
- School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, P. R. China
| | - Hicham Moutaabbid
- CNRS, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR CNRS 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, Sorbonne Université, 4 place Jussieu, Paris, 75005, France
| | - Zhenbao Feng
- School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, P. R. China
| | - Guozhao Zhang
- School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, P. R. China
| | - Lingrui Wang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Yinwei Li
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Haizhong Guo
- Key Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Cailong Liu
- School of Physics Science & Information Technology, Liaocheng University, Liaocheng, 252059, P. R. China
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3
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Aslandukov A, Liang A, Ehn A, Trybel F, Yin Y, Aslandukova A, Akbar FI, Ranieri U, Spender J, Howie RT, Bright EL, Wright J, Hanfland M, Garbarino G, Mezouar M, Fedotenko T, Abrikosov IA, Dubrovinskaia N, Dubrovinsky L, Laniel D. Synthesis of LaCN 3, TbCN 3, CeCN 5, and TbCN 5 Polycarbonitrides at Megabar Pressures. J Am Chem Soc 2024; 146:18161-18171. [PMID: 38916483 PMCID: PMC11229003 DOI: 10.1021/jacs.4c06068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/03/2024] [Accepted: 06/10/2024] [Indexed: 06/26/2024]
Abstract
Inorganic ternary metal-C-N compounds with covalently bonded C-N anions encompass important classes of solids such as cyanides and carbodiimides, well known at ambient conditions and composed of [CN]- and [CN2]2- anions, as well as the high-pressure formed guanidinates featuring [CN3]5- anion. At still higher pressures, carbon is expected to be 4-fold coordinated by nitrogen atoms, but hitherto, such CN4-built anions are missing. In this study, four polycarbonitride compounds (LaCN3, TbCN3, CeCN5, and TbCN5) are synthesized in laser-heated diamond anvil cells at pressures between 90 and 111 GPa. Synchrotron single-crystal X-ray diffraction (SCXRD) reveals that their crystal structures are built of a previously unobserved anionic single-bonded carbon-nitrogen three-dimensional (3D) framework consisting of CN4 tetrahedra connected via di- or oligo-nitrogen linkers. A crystal-chemical analysis demonstrates that these polycarbonitride compounds have similarities to lanthanide silicon phosphides. Decompression experiments reveal the existence of LaCN3 and CeCN5 compounds over a very large pressure range. Density functional theory (DFT) supports these discoveries and provides further insight into the stability and physical properties of the synthesized compounds.
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Affiliation(s)
- Andrey Aslandukov
- Bavarian
Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
- Material
Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Akun Liang
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - Amanda Ehn
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Florian Trybel
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Yuqing Yin
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Alena Aslandukova
- Bavarian
Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
| | - Fariia I. Akbar
- Bavarian
Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
| | - Umbertoluca Ranieri
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - James Spender
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - Ross T. Howie
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | | | - Jonathan Wright
- European
Synchrotron Radiation Facility, 38000 Grenoble, France
| | | | | | - Mohamed Mezouar
- European
Synchrotron Radiation Facility, 38000 Grenoble, France
| | - Timofey Fedotenko
- Photon Science,
Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
| | - Igor A. Abrikosov
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Natalia Dubrovinskaia
- Material
Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Leonid Dubrovinsky
- Bavarian
Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
| | - Dominique Laniel
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
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4
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Zhang Y, Zhang K, Yu J, Liu Z, Jiang S, Duan D, Huang X, Cui T. One-Dimensional Non-coplanar Nitrogen Chains in Manganese Tetranitride under High Pressure. J Phys Chem Lett 2024; 15:4256-4262. [PMID: 38606677 DOI: 10.1021/acs.jpclett.4c00861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Transition metal nitrides have great potential applications as incompressible and high energy density materials. Various polymeric nitrogen structures significantly affect their properties, contributing to their complex bonding modes and coordination conditions. Herein, we first report a new manganese polynitride MnN4 with bifacial trans-cis [N4]n chains by treating with high-pressure and high-temperature conditions in a diamond anvil cell. Our experiments reveal that MnN4 has a P-1 symmetry and could stabilize in the pressure range of 56-127 GPa. Detailed pressure-volume data and calculations of this phase indicate that MnN4 is a potential hard (255 GPa) and high energy density (2.97 kJ/g) material. The asymmetric interactions impel N1 and N4 atoms to hybridize to sp2-3, which causes distortions of [N4]n chains. This work discovers a new polynitride material, fills the gap for the study of manganese polynitride under high pressure, and offers some new insights into the formation of polymeric nitrogen structures.
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Affiliation(s)
- Yuchen Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Kexin Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Jingkun Yu
- Green Catalysis Center and college of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhengtao Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Shuqing Jiang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Defang Duan
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoli Huang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Tian Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
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5
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Chen L, Chu Y, Qin X, Gao Z, Zhang G, Zhang H, Wang Q, Li Q, Guo H, Li Y, Liu C. Ultrafast Dynamics Across Pressure-Induced Electronic State Transitions, Fluorescence Quenching, and Bandgap Evolution in CsPbBr 3 Quantum Dots. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308016. [PMID: 38308192 PMCID: PMC11005694 DOI: 10.1002/advs.202308016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/17/2024] [Indexed: 02/04/2024]
Abstract
This work investigates the impact of pressure on the structural, optical properties, and electronic structure of CsPbBr3 quantum dots (QDs) using steady-state photoluminescence, steady-state absorption, and femtosecond transient absorption spectroscopy, reaching a maximum pressure of 3.38 GPa. The experimental results indicate that CsPbBr3 QDs undergo electronic state (ES) transitions from ES-I to ES-II and ES-II to ES-III at 0.38 and 1.08 GPa, respectively. Intriguingly, a mixed state of ES-II and ES-III is observed within the pressure range of 1.08-1.68 GPa. The pressure-induced fluorescence quenching in ES-II is attributed to enhanced defect trapping and reduced radiative recombination. Above 1.68 GPa, fluorescence vanishes entirely, attributed to the complete phase transformation from ES-II to ES-III in which radiative recombination becomes non-existent. Notably, owing to stronger quantum confinement effects, CsPbBr3 QDs exhibit an impressive bandgap tuning range of 0.497 eV from 0 to 2.08 GPa, outperforming nanocrystals by 1.4 times and bulk counterparts by 11.3 times. Furthermore, this work analyzes various carrier dynamics processes in the pressure-induced bandgap evolution and electron state transitions, and systematically studies the microphysical mechanisms of optical properties in CsPbBr3 QDs under pressure, offering insights for optimizing optical properties and designing novel materials.
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Affiliation(s)
- Lin Chen
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Ya Chu
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Xiaxia Qin
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Zhijian Gao
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Guozhao Zhang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Haiwa Zhang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Qinglin Wang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Qian Li
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Haizhong Guo
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052P. R. China
| | - Yinwei Li
- Laboratory of Quantum Functional Materials Design and ApplicationSchool of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou221116P. R. China
| | - Cailong Liu
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
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6
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Chen H, Bykov M, Batyrev IG, Brüning L, Bykova E, Mahmood MF, Chariton S, Prakapenka VB, Fedotenko T, Liermann HP, Glazyrin K, Steele A, Goncharov AF. High-pressure Synthesis of Cobalt Polynitrides: Unveiling Intriguing Crystal Structures and Nitridation Behavior. Chemistry 2024:e202400536. [PMID: 38527310 DOI: 10.1002/chem.202400536] [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: 02/06/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
In this study, we conduct extensive high-pressure experiments to investigate phase stability in the cobalt-nitrogen system. Through a combination of synthesis in a laser-heated diamond anvil cell, first-principles calculations, Raman spectroscopy, and single-crystal X-ray diffraction, we establish the stability fields of known high-pressure phases, hexagonal NiAs-type CoN, and marcasite-type CoN2 within the pressure range of 50-90 GPa. We synthesize and characterize previously unknown nitrides, Co3N2, Pnma-CoN and two polynitrides, CoN3 and CoN5, within the pressure range of 90-120 GPa. Both polynitrides exhibit novel types of polymeric nitrogen chains and networks. CoN3 feature branched-type nitrogen trimers (N3) and CoN5 show π-bonded nitrogen chain. As the nitrogen content in the cobalt nitride increases, the CoN6 polyhedral frameworks transit from face-sharing (in CoN) to edge-sharing (in CoN2 and CoN3), and finally to isolated (in CoN5). Our study provides insights into the intricate interplay between structure evolution, bonding arrangements, and high-pressure synthesis in polynitrides, expanding the knowledge for the development of advanced energy materials.
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Affiliation(s)
- Huawei Chen
- Department of Mathematics, Howard University, Washington, DC, 20059, U.S.A
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, 20015, U.S.A
| | - Maxim Bykov
- Institute of Inorganic and Analytical Chemistry, Goethe University Frankfurt, Max-von-Laue-Straße 7, 60438, Frankfurt am Main, Germany
| | - Iskander G Batyrev
- U.S. Army Research Laboratory RDRLWML-B Aberdeen Proving Ground, Maryland, 21005, U.S.A
| | - Lukas Brüning
- Institute of Inorganic Chemistry, University of Cologne, Greinstrasse, 50939, Cologne, Germany
| | - Elena Bykova
- Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, 60438, Frankfurt am Main, Germany
| | - Mohammad F Mahmood
- Department of Mathematics, Howard University, Washington, DC, 20059, U.S.A
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Argonne, IL 60439, U.S.A
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Argonne, IL 60439, U.S.A
| | - Timofey Fedotenko
- Deutsches Elektronene-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | | | - Konstantin Glazyrin
- Deutsches Elektronene-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Andrew Steele
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, 20015, U.S.A
| | - Alexander F Goncharov
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, 20015, U.S.A
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7
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Aslandukov A, Aslandukova A, Laniel D, Khandarkhaeva S, Yin Y, Akbar FI, Chariton S, Prakapenka V, Bright EL, Giacobbe C, Wright J, Comboni D, Hanfland M, Dubrovinskaia N, Dubrovinsky L. Stabilization of N 6 and N 8 anionic units and 2D polynitrogen layers in high-pressure scandium polynitrides. Nat Commun 2024; 15:2244. [PMID: 38472167 DOI: 10.1038/s41467-024-46313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Nitrogen catenation under high pressure leads to the formation of polynitrogen compounds with potentially unique properties. The exploration of the entire spectrum of poly- and oligo-nitrogen moieties is still in its earliest stages. Here, we report on four novel scandium nitrides, Sc2N6, Sc2N8, ScN5, and Sc4N3, synthesized by direct reaction between yttrium and nitrogen at 78-125 GPa and 2500 K in laser-heated diamond anvil cells. High-pressure synchrotron single-crystal X-ray diffraction reveals that in the crystal structures of the nitrogen-rich Sc2N6, Sc2N8, and ScN5 phases nitrogen is catenated forming previously unknown N66- and N86- units and ∞ 2 ( N 5 3 - ) anionic corrugated 2D-polynitrogen layers consisting of fused N12 rings. Density functional theory calculations, confirming the dynamical stability of the synthesized compounds, show that Sc2N6 and Sc2N8 possess an anion-driven metallicity, while ScN5 is an indirect semiconductor. Sc2N6, Sc2N8, and ScN5 solids are promising high-energy-density materials with calculated volumetric energy density, detonation velocity, and detonation pressure higher than those of TNT.
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Affiliation(s)
- Andrey Aslandukov
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany.
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany.
| | - Alena Aslandukova
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Dominique Laniel
- Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, United Kingdom
| | - Saiana Khandarkhaeva
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Yuqing Yin
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
| | - Fariia I Akbar
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, 60637, USA
| | - Vitali Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, 60637, USA
| | | | | | - Jonathan Wright
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Davide Comboni
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
| | - Leonid Dubrovinsky
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
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8
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Lin S, Chen J, Zhang B, Hao J, Xu M, Li Y. Lanthanium nitride LaN 9 featuring azide units: the first metal nine-nitride as a high-energy-density material. Phys Chem Chem Phys 2024; 26:3605-3613. [PMID: 38214951 DOI: 10.1039/d3cp06155h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
High-pressure phase diagrams of the La-N binary system were systematically constructed using the CALYPSO method and first-principles calculations. In addition to the pressure-induced La-N compounds reported previously, we have uncovered a hitherto unknown LaN9 structure in Pm3̄ symmetry stabilized within a narrow pressure range of 20-24.5 GPa. Notably, LaN9 stands as the first thermodynamically stable metal nine-nitrogen compound, featuring centrosymmetric linear N3 anion units and an edge-sharing LaN12 icosahedron. Charge transfer between the La and N atoms plays a crucial role in facilitating structural stability. Furthermore, we identified a novel Cm phase for LaN8, which has a lower enthalpy compared to the previously reported phase. N atoms in Cm LaN8 are polymerized into infinite N∞ chains. Calculations demonstrate the potential recoverability of LaN9 and Cm LaN8 under atmospheric conditions while preserving their initial polynitrogen configuration. From the perspective of detonation pressure and detonation velocity, LaN9 and Cm LaN8 exhibit excellent explosive performance in comparison to TNT and HMX, with estimated energy densities of 0.9 and 1.54 kJ g-1, respectively, indicating their potential utility as high-energy-density materials.
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Affiliation(s)
- Shuyi Lin
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
- Department of Applied Physics, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
| | - Jingyan Chen
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
| | - Bi Zhang
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
| | - Jian Hao
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
| | - Meiling Xu
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
| | - Yinwei Li
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
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9
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Ding C, Yuan J, Han Y, Zhang Z, Jia Q, Wang J, Sun J. Purely single-bonded spiral nitrogen chains stabilized by trivalent lanthanum ions. J Chem Phys 2023; 159:184703. [PMID: 37942868 DOI: 10.1063/5.0176226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023] Open
Abstract
Inspired by the single-bonded nitrogen chains stabilized by tetravalent cerium, pentavalent tantalum, and hexavalent tungsten atoms, we explored the possibility of single-bonded nitrogen polymorphs stabilized by trivalent lanthanum ions. To achieve this, we utilized the crystal structure search method on the phase diagram of binary La-N compounds. We identified three novel thermodynamically stable phases, the C2/c LaN3, P-1 LaN4, and P-1 LaN8. Among them, the C2/c phase with infinite helical poly-N6 chains becomes thermodynamically stable above 50 GPa. Each nitrogen atom in the poly-N6 chain acquires one extra electron, and the spiral chain is purely single-bonded. The C2/c phase has an indirect band gap of ∼1.6 eV at 60 GPa. Notably, the band gap exhibits non-monotonic behavior, decreases first and then increases with increasing pressure. This abnormal behavior is attributed to the significant bonding of two La-N bonds at around 35 GPa. Phonon spectrum calculations and AIMD simulations have confirmed that the C2/c phase can be quenched to ambient conditions with slight distortion, and it exhibits excellent detonation properties. Additionally, we also discovered armchair-like nitrogen chains in LaN4 and the armchair and zigzag-like mixed nitrogen chains in LaN8. These results provide valuable insights into the electronic and bonding properties of nitrides under high pressure and may have important implications for the design and development of novel functional materials.
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Affiliation(s)
- Chi Ding
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Jianan Yuan
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
- School of Physics and Electronic Information, Yantai University, Yantai 264005, China
| | - Yu Han
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Zhongwei Zhang
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Qiuhan Jia
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Junjie Wang
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Jian Sun
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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10
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Laniel D, Trybel F, Aslandukov A, Spender J, Ranieri U, Fedotenko T, Glazyrin K, Bright EL, Chariton S, Prakapenka VB, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Title: Structure determination of ζ-N 2 from single-crystal X-ray diffraction and theoretical suggestion for the formation of amorphous nitrogen. Nat Commun 2023; 14:6207. [PMID: 37798268 PMCID: PMC10556017 DOI: 10.1038/s41467-023-41968-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023] Open
Abstract
The allotropy of solid molecular nitrogen is the consequence of a complex interplay between fundamental intermolecular as well as intramolecular interactions. Understanding the underlying physical mechanisms hinges on knowledge of the crystal structures of these molecular phases. That is especially true for ζ-N2, key to shed light on nitrogen's polymerization. Here, we perform single-crystal X-ray diffraction on laser-heated N2 samples at 54, 63, 70 and 86 GPa and solve and refine the hitherto unknown structure of ζ-N2. In its monoclinic unit cell (space group C2/c), 16 N2 molecules are arranged in a configuration similar to that of ε-N2. The structure model provides an explanation for the previously identified Raman and infrared lattice and vibrational modes of ζ-N2. Density functional theory calculations give an insight into the gradual delocalization of electronic density from intramolecular bonds to intermolecular space and suggest a possible pathway towards nitrogen's polymerization.
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Affiliation(s)
- Dominique Laniel
- Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, UK.
| | - Florian Trybel
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden.
| | - Andrey Aslandukov
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
- Bayerisches Geoinstitut, University of Bayreuth, 95440, Bayreuth, Germany
| | - James Spender
- Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, UK
| | - Umbertoluca Ranieri
- Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, UK
| | - Timofey Fedotenko
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Konstantin Glazyrin
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | | | - Stella Chariton
- Center for Advanced Radiation Sources, The University of Chicago, Chicago, IL, 60637, USA
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, The University of Chicago, Chicago, IL, 60637, USA
| | - Igor A Abrikosov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut, University of Bayreuth, 95440, Bayreuth, Germany
| | - Natalia Dubrovinskaia
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
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11
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Wang J, Gao H, Han Y, Ding C, Pan S, Wang Y, Jia Q, Wang HT, Xing D, Sun J. MAGUS: machine learning and graph theory assisted universal structure searcher. Natl Sci Rev 2023; 10:nwad128. [PMID: 37332628 PMCID: PMC10275355 DOI: 10.1093/nsr/nwad128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/30/2023] [Accepted: 04/28/2023] [Indexed: 06/20/2023] Open
Abstract
Crystal structure predictions based on first-principles calculations have gained great success in materials science and solid state physics. However, the remaining challenges still limit their applications in systems with a large number of atoms, especially the complexity of conformational space and the cost of local optimizations for big systems. Here, we introduce a crystal structure prediction method, MAGUS, based on the evolutionary algorithm, which addresses the above challenges with machine learning and graph theory. Techniques used in the program are summarized in detail and benchmark tests are provided. With intensive tests, we demonstrate that on-the-fly machine-learning potentials can be used to significantly reduce the number of expensive first-principles calculations, and the crystal decomposition based on graph theory can efficiently decrease the required configurations in order to find the target structures. We also summarized the representative applications of this method on several research topics, including unexpected compounds in the interior of planets and their exotic states at high pressure and high temperature (superionic, plastic, partially diffusive state, etc.); new functional materials (superhard, high-energy-density, superconducting, photoelectric materials), etc. These successful applications demonstrated that MAGUS code can help to accelerate the discovery of interesting materials and phenomena, as well as the significant value of crystal structure predictions in general.
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Affiliation(s)
| | | | | | - Chi Ding
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Shuning Pan
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Yong Wang
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Qiuhan Jia
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Hui-Tian Wang
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Dingyu Xing
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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12
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Sui M, Liu S, Wang P, Zou N, Dong Q, Zhou M, Niu S, Yue L, Zhao Z, Guo L, Liu B, Liu R, Xu Y, Yao Z, Liu B. High-pressure synthesis of fully sp 2-hybridized polymeric nitrogen layer in potassium supernitride. Sci Bull (Beijing) 2023:S2095-9273(23)00412-7. [PMID: 37438156 DOI: 10.1016/j.scib.2023.06.029] [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: 06/05/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/14/2023]
Abstract
Searching for fully sp2-hybridized layered structures is of fundamental importance because of their fascinating physical properties and potential to host topologically non-trivial electronic states. However, the synthesis of fully sp2-hybridized layered polymeric nitrogen structures remains a challenging work because of their low stability. Here, we report the synthesis of a fully sp2-hybridized layered polymeric nitrogen structure featuring fused 18-membered rings in potassium supernitride (K2N16) under high-pressure and high-temperature conditions. Bader charge analysis reveals that the potassium atomic layer stabilizes the unique sp2-hybridized polymeric nitrogen layers through the charge transfer effect in K2N16. The calculation of electronic structure indicates that K2N16 is a topological semimetal with multiple Dirac points and hosts higher-order Dirac fermions with cubic dispersion, which are contributed by the sp2-hybridized polymeric nitrogen layers arranged in P6/mcc symmetry. The high-pressure synthesis of the fully sp2-hybridized polymeric nitrogen layered structure provides promising prospects for exploring novel topological materials with effective stabilization routes.
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Affiliation(s)
- Minghong Sui
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Shuang Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Peng Wang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Nianlong Zou
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Qing Dong
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; Institute for High Pressure, Department of Physics, Hanyang University, Seoul 04763, Republic of Korea
| | - Miao Zhou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Shifeng Niu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Lei Yue
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Zitong Zhao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Linlin Guo
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Bo Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Ran Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
| | - Yong Xu
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Zhen Yao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
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13
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Zhou X, Xu W, Gui Z, Gu C, Chen J, Xie J, Yao X, Dai J, Zhu J, Wu L, Guo EJ, Yu X, Fang L, Zhao Y, Huang L, Wang S. Polar Nitride Perovskite LaWN 3-δ with Orthorhombic Structure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2205479. [PMID: 37129311 DOI: 10.1002/advs.202205479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 04/09/2023] [Indexed: 05/03/2023]
Abstract
Nitride perovskite LaWN3 has been predicted to be a promising ferroelectric material with unique properties for diverse applications. However, due to the challenging sample preparation at ambient pressure, the crystal structure of this nitride remains unsolved, which results in many ambiguities in its properties. Here, the authors report a comprehensive study of LaWN3 based on high-quality samples synthesized by a high-pressure method, leading to a definitive resolution of its crystal structure involving nitrogen deficiency. Combined with theoretical calculations, these results show that LaWN3 adopts an orthorhombic Pna21 structure with a polar symmetry, possessing a unique atomic polarization along the c-axis. The associated atomic polar distortions in LaWN3 are driven by covalent hybridization of W: 5d and N: 2p orbitals, opening a direct bandgap that explains its semiconducting behaviors. The structural stability and electronic properties of this nitride are also revealed to be closely associated with its nitrogen deficiency. The success in unraveling the structural and electronic ambiguities of LaWN3 would provide important insights into the structures and properties of the family of nitride perovskites.
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Affiliation(s)
- Xuefeng Zhou
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Wenwen Xu
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Zhigang Gui
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Chao Gu
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Jian Chen
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Jianyu Xie
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Xiaodong Yao
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Junfeng Dai
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Jinlong Zhu
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Liusuo Wu
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
- Quantum Science Center of Guangdong-Hongkong-Macao Greater Bay Area, Shenzhen, Guangdong, 518055, China
| | - Er-Jia Guo
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaohui Yu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Leiming Fang
- Key Laboratory for Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621999, China
| | - Yusheng Zhao
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
| | - Li Huang
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
- Quantum Science Center of Guangdong-Hongkong-Macao Greater Bay Area, Shenzhen, Guangdong, 518055, China
| | - Shanmin Wang
- Department of Physics & Academy for Advanced Interdisciplinary Studies, Southern University of Science & Technology, Shenzhen, Guangdong, 518055, China
- Quantum Science Center of Guangdong-Hongkong-Macao Greater Bay Area, Shenzhen, Guangdong, 518055, China
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14
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Affiliation(s)
- Sandra Ninet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, Paris, France.
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15
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Laniel D, Trybel F, Yin Y, Fedotenko T, Khandarkhaeva S, Aslandukov A, Aprilis G, Abrikosov AI, Bin Masood T, Giacobbe C, Bright EL, Glazyrin K, Hanfland M, Wright J, Hotz I, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Aromatic hexazine [N 6] 4- anion featured in the complex structure of the high-pressure potassium nitrogen compound K 9N 56. Nat Chem 2023; 15:641-646. [PMID: 36879075 DOI: 10.1038/s41557-023-01148-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/26/2023] [Indexed: 03/08/2023]
Abstract
The recent high-pressure synthesis of pentazolates and the subsequent stabilization of the aromatic [N5]- anion at atmospheric pressure have had an immense impact on nitrogen chemistry. Other aromatic nitrogen species have also been actively sought, including the hexaazabenzene N6 ring. Although a variety of configurations and geometries have been proposed based on ab initio calculations, one that stands out as a likely candidate is the aromatic hexazine anion [N6]4-. Here we present the synthesis of this species, realized in the high-pressure potassium nitrogen compound K9N56 formed at high pressures (46 and 61 GPa) and high temperature (estimated to be above 2,000 K) by direct reaction between nitrogen and KN3 in a laser-heated diamond anvil cell. The complex structure of K9N56-composed of 520 atoms per unit cell-was solved based on synchrotron single-crystal X-ray diffraction and corroborated by density functional theory calculations. The observed hexazine anion [N6]4- is planar and proposed to be aromatic.
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Affiliation(s)
- Dominique Laniel
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany. .,Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
| | - Florian Trybel
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
| | - Yuqing Yin
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany.,State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Timofey Fedotenko
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany
| | | | - Andrey Aslandukov
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany
| | | | - Alexei I Abrikosov
- Department of Science and Technology (ITN), Linköping University, Norrköping, Sweden
| | - Talha Bin Masood
- Department of Science and Technology (ITN), Linköping University, Norrköping, Sweden
| | | | | | | | | | | | - Ingrid Hotz
- Department of Science and Technology (ITN), Linköping University, Norrköping, Sweden
| | - Igor A Abrikosov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
| | - Leonid Dubrovinsky
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany.,Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
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16
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Feng X, Bu K, Liu T, Guo S, Sun Z, Fu T, Xu Y, Liu K, Yang S, Zhao Y, Li H, Lü X, Zhai T. Giant Tunability of Charge Transport in 2D Inorganic Molecular Crystals by Pressure Engineering. Angew Chem Int Ed Engl 2023; 62:e202217238. [PMID: 36461902 DOI: 10.1002/anie.202217238] [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: 11/23/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/07/2022]
Abstract
The unique intermolecular van der Waals force in emerging two-dimensional inorganic molecular crystals (2DIMCs) endows them with highly tunable structures and properties upon applying external stimuli. Using high pressure to modulate the intermolecular bonding, here we reveal the highly tunable charge transport behavior in 2DIMCs for the first time, from an insulator to a semiconductor. As pressure increases, 2D α-Sb2 O3 molecular crystal undergoes three isostructural transitions, and the intermolecular bonding enhances gradually, which results in a considerably decreased band gap by 25 % and a greatly enhanced charge transport. Impressively, the in situ resistivity measurement of the α-Sb2 O3 flake shows a sharp drop by 5 orders of magnitude in 0-3.2 GPa. This work sheds new light on the manipulation of charge transport in 2DIMCs and is of great significance for promoting the fundamental understanding and potential applications of 2DIMCs in advanced modern technologies.
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Affiliation(s)
- Xin Feng
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Kejun Bu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, P. R. China
| | - Teng Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Songhao Guo
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, P. R. China
| | - Zongdong Sun
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Tonghuan Fu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, P. R. China
| | - Yongshan Xu
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Kailang Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Sijie Yang
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yinghe Zhao
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Huiqiao Li
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xujie Lü
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, 201203, P. R. China
| | - Tianyou Zhai
- State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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17
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Sasaki T, Yamamoto T, Asano S, Niwa K, Hasegawa M. High-pressure synthesis and crystal structures of molybdenum nitride Mo 3N 5 with anisotropic compressibility by a nitrogen dimer. Dalton Trans 2023; 52:469-475. [PMID: 36533452 DOI: 10.1039/d2dt03433f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel high-pressure molybdenum nitride phase, Mo3N5, was synthesized at above 45 GPa via a nitridation reaction of molybdenum with nitrogen under high pressure using a laser-heated diamond anvil cell. Mo3N5, having an N-N dimer and 7-coordinated Mo sites, crystallizes in an orthorhombic structure with a space group of Cmcm (No. 63) without other prototype structures. The refined lattice parameters for Mo3N5 were a = 2.86201(2) Å, b = 7.07401(6) Å, and c = 14.59687(13) Å. The DFT enthalpy calculation suggested that Mo3N5 is a high-pressure stable phase, which is also consistent with an increasing coordination number compared to ambient- and low-pressure phases. The zero-pressure bulk modulus of Mo3N5 was determined to be K0 = 328(4) GPa with K'0 = 10.1(6) by the fitting for the compression curve, which is almost consistent with the theoretical E-V curve and elastic stiffness constants. The compressibility of Mo3N5 has axial anisotropy corresponding to the N-N dimer direction in the crystal structure.
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Affiliation(s)
- Takuya Sasaki
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Takuro Yamamoto
- Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Shuto Asano
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Ken Niwa
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Masashi Hasegawa
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
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18
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Cai H, Wang X, Zheng Y, Jiang XX, Zeng J, Feng Y, Chen K. Prediction of erbium-nitrogen compounds as high-performance high-energy-density materials. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 35:085701. [PMID: 36537665 DOI: 10.1088/1361-648x/aca861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
To explore high-energy-density materials, intense attention has been focused on how to stabilize the N-N bond in nitrogen-rich compounds. Here, we report several stable phases of erbium-nitrogen compounds ErNxas high-energy-density materials. Specifically, the phase diagrams of stable high-pressure structuresImmm-ErN2,C2-ErN3,P1--ErN4, andP1--ErN6, are theoretically studied by combining first-principles calculation with particle swarm optimization algorithm. In these erbium-nitrogen compounds, the N-N bonds are stabilized as diatomic quasi-molecule N2, helical-like nitrogen chains, armchair nitrogen chains, and armchair-anti-armchair nitrogen chains, respectively. Among them, theP1--ErN6harbors excellent stability at high thermal up to 1000 K. More importantly, theP1--ErN6has outstanding explosive performance with high-energy-density of 1.30 kJ g-1, detonation velocity of 10.87 km s-1, and detonation pressure of 812.98 kbar, which shows its promising application prospect as high-energy-density materials.
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Affiliation(s)
- Huapeng Cai
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Xin Wang
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Yueshao Zheng
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Xing-Xing Jiang
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Jiang Zeng
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Yexin Feng
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Keqiu Chen
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
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19
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Zhai H, Xu R, Dai J, Ma X, Yu X, Li Q, Ma Y. Stabilized Nitrogen Framework Anions in the Ga–N System. J Am Chem Soc 2022; 144:21640-21647. [DOI: 10.1021/jacs.2c09056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Hang Zhai
- State Key Laboratory of Superhard Materials, International Center for Computational Method and Software, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Rui Xu
- State Key Laboratory of Superhard Materials, International Center for Computational Method and Software, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
| | - Jianhong Dai
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaoli Ma
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaohui Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Songshan Lake Materials Laboratory, Dongguan 523808, China
| | - Quan Li
- State Key Laboratory of Superhard Materials, International Center for Computational Method and Software, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Yanming Ma
- State Key Laboratory of Superhard Materials, International Center for Computational Method and Software, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
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20
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Aslandukov A, Trybel F, Aslandukova A, Laniel D, Fedotenko T, Khandarkhaeva S, Aprilis G, Giacobbe C, Lawrence Bright E, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Anionic N
18
Macrocycles and a Polynitrogen Double Helix in Novel Yttrium Polynitrides YN
6
and Y
2
N
11
at 100 GPa. Angew Chem Int Ed Engl 2022; 61:e202207469. [PMID: 35726633 PMCID: PMC9546263 DOI: 10.1002/anie.202207469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Andrey Aslandukov
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Florian Trybel
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Alena Aslandukova
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Dominique Laniel
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Centre for Science at Extreme Conditions and School of Physics and Astronomy University of Edinburgh Edinburgh EH9 3FD UK
| | - Timofey Fedotenko
- Photon Science, Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany
| | - Saiana Khandarkhaeva
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Georgios Aprilis
- European Synchrotron Radiation Facility BP 220 38043 Grenoble Cedex France
| | - Carlotta Giacobbe
- European Synchrotron Radiation Facility BP 220 38043 Grenoble Cedex France
| | | | - Igor A. Abrikosov
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
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21
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Liu R, Xu D, Yao Z, Niu S, Liu B. The New High-Pressure Phases of Nitrogen-Rich Ag-N Compounds. MATERIALS (BASEL, SWITZERLAND) 2022; 15:4986. [PMID: 35888452 PMCID: PMC9320057 DOI: 10.3390/ma15144986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/02/2022] [Accepted: 07/15/2022] [Indexed: 11/23/2022]
Abstract
The high-pressure phase diagram of Ag-N compounds is enriched by proposing three stable high-pressure phases (P4/mmm-AgN2, P1-AgN7 and P-1-AgN7) and two metastable high-pressure phases (P-1-AgN4 and P-1-AgN8). The novel N7 rings and N20 rings are firstly found in the folded layer structure of P-1-AgN7. The electronic structure properties of predicted five structures are studied by the calculations of the band structure and DOS. The analyses of ELF and Bader charge show that the strong N-N covalent bond interaction and the weak Ag-N ionic bond interaction constitute the stable mechanism of Ag-N compounds. The charge transfer between the Ag and N atoms plays an important role for the structural stability. Moreover, the P-1-AgN7 and P-1-AgN8 with the high-energy density and excellent detonation properties are potential candidates for new high-energy density species.
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Affiliation(s)
- Ran Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China; (R.L.); (D.X.)
| | - Dan Xu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China; (R.L.); (D.X.)
| | - Zhen Yao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China; (R.L.); (D.X.)
| | - Shifeng Niu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China; (R.L.); (D.X.)
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China; (R.L.); (D.X.)
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22
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Mittal D, Hostaša J, Silvestroni L, Esposito L, Mohan A, Kumar R, Sharma SK. TRIBOLOGICAL BEHAVIOUR OF TRANSPARENT CERAMICS: A REVIEW. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.06.080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Aslandukov A, Trybel F, Aslandukova A, Laniel D, Fedotenko T, Khandarkhaeva S, Aprilis G, Giacobbe C, Lawrence Bright E, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Anionic N18 Macrocycles and a Polynitrogen Double Helix in Novel Yttrium Polynitrides YN6 and Y2N11 at 100 GPa. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Andrey Aslandukov
- University of Bayreuth: Universitat Bayreuth Laboratory of Crystallography Universitätstrasse 30 95440 Bayreuth GERMANY
| | - Florian Trybel
- Linkopings universitet Department of Physics, Chemistry and Biology (IFM) SWEDEN
| | - Alena Aslandukova
- University of Bayreuth: Universitat Bayreuth Bayerisches Geoinstitut GERMANY
| | - Dominique Laniel
- The University of Edinburgh Centre for Science at Extreme Conditions and School of Physics and Astronomy UNITED KINGDOM
| | - Timofey Fedotenko
- DESY: Deutsches Elektronen-Synchrotron Photon Science, Deutsches Elektronen-Synchrotron GERMANY
| | - Saiana Khandarkhaeva
- University of Bayreuth: Universitat Bayreuth Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography GERMANY
| | | | | | | | - Igor A. Abrikosov
- Linköping University: Linkopings universitet Department of Physics, Chemistry and Biology (IFM) SWEDEN
| | - Leonid Dubrovinsky
- University of Bayreuth: Universitat Bayreuth Bayerisches Geoinstitut GERMANY
| | - Natalia Dubrovinskaia
- University of Bayreuth: Universitat Bayreuth Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography GERMANY
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24
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Stabilization of hexazine rings in potassium polynitride at high pressure. Nat Chem 2022; 14:794-800. [PMID: 35449217 DOI: 10.1038/s41557-022-00925-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 03/08/2022] [Indexed: 11/08/2022]
Abstract
Polynitrogen molecules are attractive for high-energy-density materials due to energy stored in nitrogen-nitrogen bonds; however, it remains challenging to find energy-efficient synthetic routes and stabilization mechanisms for these compounds. Direct synthesis from molecular dinitrogen requires overcoming large activation barriers and the reaction products are prone to inherent inhomogeneity. Here we report the synthesis of planar N62- hexazine dianions, stabilized in K2N6, from potassium azide (KN3) on laser heating in a diamond anvil cell at pressures above 45 GPa. The resulting K2N6, which exhibits a metallic lustre, remains metastable down to 20 GPa. Synchrotron X-ray diffraction and Raman spectroscopy were used to identify this material, through good agreement with the theoretically predicted structural, vibrational and electronic properties for K2N6. The N62- rings characterized here are likely to be present in other high-energy-density materials stabilized by pressure. Under 30 GPa, an unusual N20.75--containing compound with the formula K3(N2)4 was formed instead.
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25
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Liu Y, Wang R, Wang Z, Li D, Cui T. Formation of twelve-fold iodine coordination at high pressure. Nat Commun 2022; 13:412. [PMID: 35058450 PMCID: PMC8776873 DOI: 10.1038/s41467-022-28083-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 01/07/2022] [Indexed: 11/25/2022] Open
Abstract
Halogen compounds have been studied widely due to their unique hypercoordinated and hypervalent features. Generally, in halogen compounds, the maximal coordination number of halogens is smaller than eight. Here, based on the particle swarm optimization method and first-principles calculations, we report an exotically icosahedral cage-like hypercoordinated IN6 compound composed of N6 rings and an unusual iodine-nitrogen covalent bond network. To the best of our knowledge, this is the first halogen compound showing twelve-fold coordination of halogen. High pressure and the presence of N6 rings reduce the energy level of the 5d orbitals of iodine, making them part of the valence orbital. Highly symmetrical covalent bonding networks contribute to the formation of twelve-fold iodine hypercoordination. Moreover, our theoretical analysis suggests that a halogen element with a lower atomic number has a weaker propensity for valence expansion in halogen nitrides.
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Affiliation(s)
- Yan Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P.R. China
| | - Rui Wang
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, 130012, P.R. China
| | - Zhigang Wang
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, 130012, P.R. China
| | - Da Li
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P.R. China.
| | - Tian Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P.R. China.
- School of Physical Science and Technology, Ningbo University, Ningbo, 315211, P.R. China.
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26
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Xu M, Li Y, Ma Y. Materials by design at high pressures. Chem Sci 2022; 13:329-344. [PMID: 35126967 PMCID: PMC8729811 DOI: 10.1039/d1sc04239d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 12/08/2021] [Indexed: 01/29/2023] Open
Abstract
Pressure, a fundamental thermodynamic variable, can generate two essential effects on materials. First, pressure can create new high-pressure phases via modification of the potential energy surface. Second, pressure can produce new compounds with unconventional stoichiometries via modification of the compositional landscape. These new phases or compounds often exhibit exotic physical and chemical properties that are inaccessible at ambient pressure. Recent studies have established a broad scope for developing materials with specific desired properties under high pressure. Crystal structure prediction methods and first-principles calculations can be used to design materials and thus guide subsequent synthesis plans prior to any experimental work. A key example is the recent theory-initiated discovery of the record-breaking high-temperature superhydride superconductors H3S and LaH10 with critical temperatures of 200 K and 260 K, respectively. This work summarizes and discusses recent progress in the theory-oriented discovery of new materials under high pressure, including hydrogen-rich superconductors, high-energy-density materials, inorganic electrides, and noble gas compounds. The discovery of the considered compounds involved substantial theoretical contributions. We address future challenges facing the design of materials at high pressure and provide perspectives on research directions with significant potential for future discoveries.
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Affiliation(s)
- Meiling Xu
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University Xuzhou 221116 China
| | - Yinwei Li
- Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University Xuzhou 221116 China
| | - Yanming Ma
- State Key Laboratory of Superhard Materials & International Center for Computational Method and Software, College of Physics, Jilin University Changchun 130012 China
- International Center of Future Science, Jilin University Changchun 130012 China
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27
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Chang CC, Sasaki T, Gaida NA, Niwa K, Hasegawa M. Crystal and Electronic Structure of U 7Te 12-Type Tungsten Nitride Synthesized under High Pressure. Inorg Chem 2021; 60:13278-13283. [PMID: 34436875 DOI: 10.1021/acs.inorgchem.1c01633] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tungsten nitride continues to drive fundamental interests because of its potential as a functional compound, which combines features such as high hardness together with thermal, chemical, and wear resistance. Here, we report a novel tungsten nitride phase synthesized from MoC-type WN0.6 and molecular nitrogen after laser irradiation at P = 70 GPa in a diamond anvil cell. This novel phase is quenchable at ambient pressure and determined to be U7Te12-type tungsten nitride and crystallizes in the hexagonal space group (P6) having lattice parameters of a = 8.2398(3) Å, c = 2.94948(14) Å, and V = 173.423(13) Å3. Tungsten atoms are coordinated to eight and nine nitrogen atoms, higher than previously reported tungsten nitrides. The bulk modulus is determined to be K0 = 312 (5) GPa (K0' = 4.0 fixed), and DFT calculations predict that U7Te12-type W7N12 has a metallic nature.
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Affiliation(s)
- Chung-Ching Chang
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Takuya Sasaki
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Nico Alexander Gaida
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Ken Niwa
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Masashi Hasegawa
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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28
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Li L, Zhao X, Bao K, Duan D, Cui T. Pressure-Induced Transition from Spin to Superconducting States in Novel MnN 2. ACS OMEGA 2021; 6:21830-21836. [PMID: 34471785 PMCID: PMC8388077 DOI: 10.1021/acsomega.1c03583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
The connection between magnetism and superconductivity has long been discussed since the discovery of Fe-based superconductors. Here, we report the discovery of a pressure-induced transition from a spin to a superconducting state in novel MnN2 based on ab initio calculations. The superconducting state can be obtained in two ways: the first is the pressure-induced transition from an AFM-P21/m to an NM-I4/mmm phase at 30 GPa, while the other is the pressure-induced transition from an FM-I4/mmm phase to magnetic vanishing at 14 GPa, which leads to a structural transition with the distortion of octahedrons to tetragonal pyramids. NM-I4/mmm-MnN2 is superconductive with T c ≈ 17.6 K at 0 GPa. In the second way, electronic structure calculations indicate that the system transforms from a high-spin state to a low-spin state due to increasing crystal-field splitting, causing disappearance of magnetism; more electron occupancy around the Fermi level drives the emergence of superconductivity. Remarkably, I4/mmm-MnN2 can achieve mutual spin-to-superconducting state transformation by pressure. Moreover, the AFM-P21/m-MnN2 phase is extremely incompressible with the hardness above 20 GPa. Our results provide a reasonable and systematic interpretation for the connection between magnetism and superconductivity and give clues for achieving spin-to-superconducting switching materials with certain crystal features.
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Affiliation(s)
- Li Li
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Xingbin Zhao
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Kuo Bao
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Defang Duan
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Tian Cui
- State
Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- Institute
of High Pressure Physics, School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
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29
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Tse JS. Machine-learning accelerated structural prediction and confirmation of novel WN 6 with hexagonal N 6 rings. Sci Bull (Beijing) 2021; 66:1367-1368. [PMID: 36654358 DOI: 10.1016/j.scib.2021.04.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- John S Tse
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon S7N 5E2, Canada.
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30
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Enhancing crystal structure prediction by decomposition and evolution schemes based on graph theory. FUNDAMENTAL RESEARCH 2021. [DOI: 10.1016/j.fmre.2021.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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31
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Zhang J, Niu C, Zhang H, Zhao J, Wang X, Zeng Z. Polymerization of Nitrogen in Nitrogen-Fluorine Compounds under Pressure. J Phys Chem Lett 2021; 12:5731-5737. [PMID: 34130459 DOI: 10.1021/acs.jpclett.1c01181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A wide range of polynitrogen species have attracted much attention because of their potential applications as high-energy-density materials. Until now, predicted polynitrogen was found to be negatively charged, with charge transfer from introduced atoms to nitrogen in nitrogen-bearing compounds. Using an evolutionary algorithm combined with first-principles calculations, stoichiometries and structures in nitrogen-fluorine compounds at pressures ranging from 0 to 200 GPa are investigated. In addition to two fluorine-rich compounds NF3 and NF5, two other compounds, NF and N6F, emerge with increasing pressure. N6F, as a nitrogen-rich compound, will become stable at pressures greater than 180 GPa with a positively charged nitrogen network. Above 120 GPa, the NF compound with polymeric zigzag nitrogen chains is discovered, and it is quenchable to the ambient conditions, acquiring the highest energy density of 5.38 kJ/g among reported binary covalent nitrogen compounds. These newly predicted N-F compounds are useful in understanding the chemistry of polynitrogen.
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Affiliation(s)
- Jie Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Caoping Niu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Hanxing Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Jing Zhao
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Xianlong Wang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Zhi Zeng
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
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32
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Gomes ACR, Silva MX, Galvão BRL. Stability of neutral molecular polynitrogens: energy content and decomposition mechanisms. RSC Adv 2021; 11:21567-21578. [PMID: 35478819 PMCID: PMC9034165 DOI: 10.1039/d1ra03259c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/19/2021] [Indexed: 11/21/2022] Open
Abstract
The potential application of all-nitrogen molecules as high energy density materials (HEDMs) has been attracting considerable scientific effort. If stable enough to be synthesized and stored, these systems may be used as a green source of energy. However, it is very difficult to obtain these structures under mild experimental conditions. Theoretical chemistry may aid in the search for polynitrogens that are more likely to have experimental usability. The barriers towards decomposition are an effective way to assess their stability, but these have not been thoroughly studied. Most of the previous effort in this direction focus on a single N x case, each employing different accuracy levels, and the decomposition of caged structures has been little explored. Here we explore the stability and decomposition of several neutral molecular polynitrogens of different sizes and shapes using a common and accurate theoretical framework in order to compare among them, search for patterns and identify potential candidates for synthesis. We focus especially on new caged geometries, and our results indicate that the prismatic ones can be expected to present higher energy densities and be very stable with respect to unimolecular decomposition. It is shown that the energy content can be clearly stratified between chain, ring, cage and prismatic cage structures.
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Affiliation(s)
- A C R Gomes
- Centro Federal de Educação Tecnológica de Minas Gerais, CEFET-MG Av. Amazonas 5253 (30421-169) Belo Horizonte Minas Gerais Brazil
| | - M X Silva
- Programa de Pós-Graduação em Modelagem Matemática e Computacional, Centro Federal de Educação Tecnológica de Minas Gerais, CEFET-MG Av. Amazonas 7675 (30510-000) Belo Horizonte Minas Gerais Brazil
| | - B R L Galvão
- Centro Federal de Educação Tecnológica de Minas Gerais, CEFET-MG Av. Amazonas 5253 (30421-169) Belo Horizonte Minas Gerais Brazil
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33
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Du H, Ge Y, Zhu J, Guo W, Yao Y. Pressure-induced novel nitrogen-rich aluminum nitrides: AlN 6, Al 2N 7 and AlN 7 with polymeric nitrogen chains and rings. Phys Chem Chem Phys 2021; 23:12350-12359. [PMID: 34027533 DOI: 10.1039/d1cp01027a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pressure-induced non-molecular phases of polymeric nitrogen have potential applications in the field of energetic materials. Here, through a structural search method combined with first-principles calculations, we have predicted four novel nitrogen-rich aluminum nitrides C2/m-AlN6, Cm-Al2N7, C2-Al2N7 and P1-AlN7. Nitrogen atoms polymerize into infinite chains in C2/m-AlN6, C2-Al2N7 and P1-AlN7 structures and form N3 chains and N4 rings in Cm-Al2N7. C2/m-AlN6 is stable in the pressure range from 30 to 80 GPa and Cm-Al2N7, C2-Al2N7 and P1-AlN7 are metastable in the pressure ranges of 35-65, 65-80 and 41-80 GPa, respectively. The present study predicts that C2/m-AlN6 has a superconducting transition temperature of 18.9 K at 0 GPa and can be quenched and recovered under ambient conditions. The energy densities of C2/m-AlN6, Cm-Al2N7, C2-Al2N7 and P1-AlN7 compounds are expected to be 4.80, 4.59, 5.46 and 5.59 kJ g-1, respectively, due to their high nitrogen content, indicating that they have potential to be high-energy density materials. The calculated Vickers hardness of C2/m-AlN6, Cm-Al2N7, Cm-Al2N7 and P1-AlN7 is 43.86, 39.32, 63.96 and 33.58 GPa, respectively, showing that the novel nitrogen-rich aluminum nitrides are potential superhard materials as well. This study may encourage further experimental exploration of high N content superhard or high-energy density nitrides.
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Affiliation(s)
- Huifang Du
- Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China.
| | - Yanfeng Ge
- State Key Laboratory of Metastable Materials Science and Technology & Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, 066004, China
| | - Jinlong Zhu
- Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
| | - Wei Guo
- Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China. and Frontiers Science Center for High Energy Material (MOE), Beijing Institute of Technology, Beijing 100081, China
| | - Yugui Yao
- Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China. and Frontiers Science Center for High Energy Material (MOE), Beijing Institute of Technology, Beijing 100081, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
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