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Bykova E, Johansson E, Bykov M, Chariton S, Fei H, Ovsyannikov SV, Aslandukova A, Gabel S, Holz H, Merle B, Alling B, Abrikosov IA, Smith JS, Prakapenka VB, Katsura T, Dubrovinskaia N, Goncharov AF, Dubrovinsky L. Novel Class of Rhenium Borides Based on Hexagonal Boron Networks Interconnected by Short B 2 Dumbbells. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:8138-8152. [PMID: 36186668 PMCID: PMC9520984 DOI: 10.1021/acs.chemmater.2c00520] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 07/23/2022] [Indexed: 06/16/2023]
Abstract
Transition metal borides are known due to their attractive mechanical, electronic, refractive, and other properties. A new class of rhenium borides was identified by synchrotron single-crystal X-ray diffraction experiments in laser-heated diamond anvil cells between 26 and 75 GPa. Recoverable to ambient conditions, compounds rhenium triboride (ReB3) and rhenium tetraboride (ReB4) consist of close-packed single layers of rhenium atoms alternating with boron networks built from puckered hexagonal layers, which link short bonded (∼1.7 Å) axially oriented B2 dumbbells. The short and incompressible Re-B and B-B bonds oriented along the hexagonal c-axis contribute to low axial compressibility comparable with the linear compressibility of diamond. Sub-millimeter samples of ReB3 and ReB4 were synthesized in a large-volume press at pressures as low as 33 GPa and used for material characterization. Crystals of both compounds are metallic and hard (Vickers hardness, H V = 34(3) GPa). Geometrical, crystal-chemical, and theoretical analysis considerations suggest that potential ReB x compounds with x > 4 can be based on the same principle of structural organization as in ReB3 and ReB4 and possess similar mechanical and electronic properties.
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Affiliation(s)
- Elena Bykova
- Earth
and Planets Laboratory, Carnegie Institution
for Science, 5241 Broad Branch Road NW, Washington, D.C., 20015, United States
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Erik Johansson
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, Campus Valla, Fysikhuset, SE-58183, Linköping, Sweden
| | - Maxim Bykov
- Earth
and Planets Laboratory, Carnegie Institution
for Science, 5241 Broad Branch Road NW, Washington, D.C., 20015, United States
- Institute
of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany
| | - Stella Chariton
- Center
for Advanced Radiation Sources, The University
of Chicago, 5640 S. Ellis, Chicago, Illinois 60637, United
States
| | - Hongzhan Fei
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Sergey V. Ovsyannikov
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Alena Aslandukova
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Stefan Gabel
- Materials
Science and Engineering, Institute I, Interdisciplinary Center for
Nanostructured Films (IZNF), Friedrich-Alexander-Universität
Erlangen-Nürnberg, Cauerstraße 3, D-91058 Erlangen, Germany
| | - Hendrik Holz
- Materials
Science and Engineering, Institute I, Interdisciplinary Center for
Nanostructured Films (IZNF), Friedrich-Alexander-Universität
Erlangen-Nürnberg, Cauerstraße 3, D-91058 Erlangen, Germany
- Institute
of Materials Engineering, University of
Kassel, 34125 Kassel, Germany
| | - Benoit Merle
- Materials
Science and Engineering, Institute I, Interdisciplinary Center for
Nanostructured Films (IZNF), Friedrich-Alexander-Universität
Erlangen-Nürnberg, Cauerstraße 3, D-91058 Erlangen, Germany
- Institute
of Materials Engineering, University of
Kassel, 34125 Kassel, Germany
| | - Björn Alling
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, Campus Valla, Fysikhuset, SE-58183, Linköping, Sweden
| | - Igor A. Abrikosov
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, Campus Valla, Fysikhuset, SE-58183, Linköping, Sweden
| | - Jesse S. Smith
- HPCAT,
X-ray Science Division, Argonne National
Laboratory, Argonne, Illinois 60439, United States
| | - Vitali B. Prakapenka
- Center
for Advanced Radiation Sources, The University
of Chicago, 5640 S. Ellis, Chicago, Illinois 60637, United
States
| | - Tomoo Katsura
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Natalia Dubrovinskaia
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, Campus Valla, Fysikhuset, SE-58183, Linköping, Sweden
- Material
Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
| | - Alexander F. Goncharov
- Earth
and Planets Laboratory, Carnegie Institution
for Science, 5241 Broad Branch Road NW, Washington, D.C., 20015, United States
| | - Leonid Dubrovinsky
- Bayerisches
Geoinstitut, University of Bayreuth, Universitätstraβe 30, 95440 Bayreuth, Germany
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Qiao L, Jin Z. Two B-C-O Compounds: Structural, Mechanical Anisotropy and Electronic Properties under Pressure. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1413. [PMID: 29232934 PMCID: PMC5744348 DOI: 10.3390/ma10121413] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/16/2017] [Accepted: 12/08/2017] [Indexed: 11/16/2022]
Abstract
The structural, stability, mechanical, elastic anisotropy and electronic properties of two ternary light element compounds, B₂CO₂ and B₆C₂O₅, are systematically investigated. The elastic constants and phonon calculations reveal that B₂CO₂ and B₆C₂O₅ are both mechanically and dynamically stable at ambient pressure, and they can stably exist to a pressure of 20 GPa. Additionally, it is found that B₂CO₂ and B₆C₂O₅ are wide-gap semiconductor materials with indirect energy gaps of 5.66 and 5.24 eV, respectively. The hardness calculations using the Lyakhov-Oganov model show that B₂CO₂ is a potential superhard material. Furthermore, the hardness of B₆C₂O₅ is 29.6 GPa, which is relatively softer and more easily machinable compared to the B₂CO₂ (41.7 GPa). The elastic anisotropy results show that B₆C₂O₅ exhibits a greater anisotropy in the shear modulus, while B₂CO₂ exhibits a greater anisotropy in Young's modulus at ambient pressure.
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Affiliation(s)
- Liping Qiao
- Team of Micro & Nano Sensor Technology and Application in High-altitude Regions, Xizang Engineering Laboratory for Water Pollution Control and Ecological Remediation, School of Information Engineering, Xizang Minzu University, Xianyang 712082, China.
| | - Zhao Jin
- School of Information Engineering, Chang'an University, Xi'an 710064, China.
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