Novel Class of Rhenium Borides Based on Hexagonal Boron Networks Interconnected by Short B2 Dumbbells
Year: 2022
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide 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 (ReB 3 ) and rhenium tetraboride (ReB 4 ) 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 B 2 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 ReB 3 and ReB 4 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 ReB 3 and ReB 4 and possess similar mechanical and electronic properties.
Source: Chemistry of Materials
Authors: Elena Bykova, Erik Johansson, Maxim Bykov, Stella Chariton, Hongzhan Fei, Sergey V. Ovsyannikov, Alena Aslandukova, Stefan Gabel, Hendrik Holz, Benoit Merle, Björn Alling, Igor A. Abrikosov, Jesse S. Smith, Vitali B. Prakapenka, Tomoo Katsura, Natalia Dubrovinskaia, Alexander F. Goncharov, Leonid Dubrovinsky
Institutions: Carnegie Institution for Science, Earth and Planets Laboratory, University of Bayreuth, Linköping University, University of Cologne, University of Chicago, Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisziplinäres Zentrum für Nanostrukturierte Filme, University of Kassel, Argonne National Laboratory
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,000
Funders: National Science Foundation, U.S. Department of Energy, Carnegie Institution of Washington, University of Chicago, European Commission, Deutsche Forschungsgemeinschaft, Stiftelsen för Strategisk Forskning, National Science Council, Linköpings Universitet, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, Institut National Du Cancer, Sveriges Regering, Office of Science, National Nuclear Security Administration, National Supercomputer Centre, Linköpings Universitet, Division of Earth Sciences, Argonne National Laboratory, H2020 European Research Council, H2020 Marie Skłodowska-Curie Actions
Awards: G102163711, G1055550527, G107546177, G1313983767, G1386772601, G1525809646, GEOSOILENVIROCARS: A NATIONAL RESOURCE FOR EARTH, PLANETARY, SOIL AND ENVIRONMENTAL SCIENCE RESEARCH AT THE ADVANCED PHOTON SOURCE, G1664757510, G1696766764, New theory for magnetic materials at high temperature, G193668846, G1996433053, International Career Grant, G2144212310, G2156986825, G222768804, G223594131, G2287611682, G2509613613, G262962599, G2867433886, G3075337988, G3318903820, G3456956060, G3479632140, Chemistry and transport properties of bridgmanite controlling lower-mantle dynamics, GEO CARS: A NATIONAL RESOURCE FOR EARTH, PLANETARY AND ENVIRONMENTAL SCIENCE RESEARCH AT THE ADVANCED PHOTON SOURCE, G4155429592, G416557497, G434337789, Facility Support: GeoSoilEnviroCARS: A National Resource for Earth, Planetary, Soil and Environmental Science Research at the APS, G498139845, G5015203597, G513797252, G5331847957, Controlling metastable phases of novel nitrides and oxides: from discoveries at extreme conditions towards advanced technological applications, G6256534168, G671512426, G6848031779, Theory for Disoredered Magnetic Materials at High Temperature, G6918803902, G7429257490, G7571800522, G7578213928, G7711467243, G7864457617, G8209221381, G834796695, Strategiska utmaningar för beräkningsbaserad legeringsteori, GEOSOILENVIROCARS: A NATIONAL RESOURCE FOR EARTH, PLANETARY, SOIL AND ENVIRONMENTAL SCIENCE RESEARCH AT THE ADVANCED PHOTON SOURCE, G969889393, G993149817
OpenAlex ID: W4294844477