EPR Study of the Thermal Depolymerization Process of C60 Polymerized Phases
| Autor: | V. A. Davydov, A.V. Rakhmanina, Viatcheslav N. Agafonov, E. A. Zhilinskaya |
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| Přispěvatelé: | Institute of High-Pressure Physics, RAS, GREMAN (matériaux, microélectronique, acoustique et nanotechnologies) (GREMAN - UMR 7347), Institut National des Sciences Appliquées - Centre Val de Loire (INSA CVL), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
02 engineering and technology 01 natural sciences law.invention chemistry.chemical_compound Tetragonal crystal system Nuclear magnetic resonance law Phase (matter) 0103 physical sciences General Materials Science depolymerization Physical and Theoretical Chemistry Triplet state 010306 general physics Electron paramagnetic resonance Crystalline C60 polymerized phases Depolymerization Organic Chemistry Atmospheric temperature range 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics EPR study Monomer Thermal depolymerization chemistry [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Physical chemistry 0210 nano-technology |
| Zdroj: | Fullerenes, Nanotubes and Carbon Nanostructures Fullerenes, Nanotubes and Carbon Nanostructures, Taylor & Francis, 2012, 20 (4-7), pp.357--360. ⟨10.1080/1536383X.2012.655180⟩ |
| ISSN: | 1536-383X 1536-4046 |
| DOI: | 10.1080/1536383X.2012.655180⟩ |
| Popis: | International audience; The EPR method has been used to investigate thermal depolymerization processes of the tetragonal (T) and rhombohedral (R) 2D-polymerized phases of C60 in vacuum and in air. The behavior of paramagnetic centers (PCs) with doublet (S = 1/2) and triplet (S = 1) states during thermal depolymerization of the T and R phases have been analyzed and compared with the behavior of PCs of the monomer C60 phase at temperatures up to 650 K. A complete destruction of the PCs with triplet state on heating in the T and R phases has been observed. The EPR study of the monomer C60 phase shows the appearance of new PCs with triplet state in the 580–650 K temperature range. |
| Databáze: | OpenAIRE |
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