Synthesis of ultrahard fullerite with a catalytic 3D polymerization reaction of C60 |
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| Affiliation: | 1. Technological Institute for Superhard and Novel Carbon Materials, 142190, Centralnaya 7a, Troitsk, Moscow, Russian Federation;2. National University of Science and Technology MISiS, 119049, Leninskiy prospekt 4, Moscow, Russian Federation;3. Moscow Institute of Physics and Technology State University, 141700, Institutskiy per. 9, Dolgoprudny, Moscow Region, Russian Federation;4. Lomonosov Moscow State University, 119991, Leninskie Gory, Moscow, Russian Federation;1. University of Bucharest, 405 Atomistilor Str., 077125 Bucharest-Magurele, Romania;2. Institute of Materials Technology, University Politécnica of Valencia, Camino de Vera s/n, 46022 Valencia, Spain;3. Fiat Research Centre, 50 Torino Street, 10043 Orbassano, Italy;1. Department of Occupational Therapy, Lady Cilento Children’s Hospital, 501 Stanley St., South Brisbane, Queensland 4101, Australia;2. Centre for Children’s Burns and Trauma Research, Child Health Research Centre, Level 7, Centre for Children’s Health Research, 62 Graham Street, South Brisbane, Queensland, 4101, Australia;1. Centre for Children’s Burns and Trauma Research, Child Health Research Centre, Level 7, Centre for Children’s Health Research, 62 Graham Street, South Brisbane, Queensland, 4101, Australia;2. Department of Paediatric Surgery, Urology, Neonatal Surgery, Burns and Trauma, Lady Cilento Children’s Hospital, Brisbane, Queensland 4101, Australia;3. School of Medicine, The University of Queensland, St. Lucia, Queensland 4067, Australia;1. College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China;2. School of Physical Sciences, Kavli Institute for Theoretical Sciences, CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, 100049, China;1. Sobolev Institute of Geology and Mineralogy SB RAS, Koptyug ave. 3, 630090, Novosibirsk, Russia;2. Department of Geology and Geophysics, Novosibirsk State University, Novosibirsk 630090, Russia;1. National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. Department of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | 3D polymerization of C60 realizes under conditions of large plastic deformation at pressure 6–7 GPa and room temperature in the presence of CS2. The phase of 3D-polymerized C60 is identical to ultrahard fullerite synthesized from pure C60 at 18 GPa pressure: in both cases, the samples plough diamond during the rotation of the sample in a shear diamond anvil cell, bulk module is 585 GPa, and a sequence of phase transitions preceding to ultrahard phase is also the same in both cases (in the presence of CS2, the phase transitions take place at lower pressures than in pure C60). Raman and transmission microscope studies confirm the structure equivalence of samples of both types. The absence of sulfur in the structure of ultrahard fullerite synthesized in the presence of CS2 proves the catalysis role of CS2 in the 3D polymerization of C60. |
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