Neutron bombardment of single wall carbon nanohorn (SWCNH): DSC determination of the stored Wigner-Szilard energy (Articolo in rivista)

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Label
  • Neutron bombardment of single wall carbon nanohorn (SWCNH): DSC determination of the stored Wigner-Szilard energy (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s10967-013-2893-0 (literal)
Alternative label
  • F. Cataldo, S. Iglesias- Groth, Y. Hafez, G. Angelini (2014)
    Neutron bombardment of single wall carbon nanohorn (SWCNH): DSC determination of the stored Wigner-Szilard energy
    in Journal of radioanalytical and nuclear chemistry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • F. Cataldo, S. Iglesias- Groth, Y. Hafez, G. Angelini (literal)
Pagina inizio
  • 1955 (literal)
Pagina fine
  • 1963 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 299 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • -Istituto Nazionale di Astrofisica - Osservatorio Astrofisica di Catania, Via S. Sofia 78, 95123 Catania, Italy -Actinium Chemical Research, Via Casilina 1626/A, 00133 Rome, Italy -Instituto de Astrofisica de Canarias, Via Lactea s/n, 38200 La Laguna, Tenerife, Spain -National Center for Astronomy, KACST, P.O. Box 6086, Riyadh 11442, Saudi Arabia -Istituto di Metodologie Chimiche, CNR, Via Salaria Km 29,300, 00016 Monterotondo Stazione, Rome, Italy (literal)
Titolo
  • Neutron bombardment of single wall carbon nanohorn (SWCNH): DSC determination of the stored Wigner-Szilard energy (literal)
Abstract
  • Single wall carbon nanohorn (SWCNH) were neutron-bombarded to a dose of 3.28 x 10(16) n/cm(2). The Wigner or stored energy was determined by a differential scanning calorimeter and was found 5.49 J/g, 50 times higher than the Wigner energy measured on graphite flakes treated at the same neutron dose. The activation energy for the thermal annealing of the accumulated radiation damage in SWCNH was determined in the range 6.3-6.6 eV against a typical activation energy for the annealing of the radiation-damaged graphite which is in the range of 1.4-1.5 eV. Furthermore the stored energy in neutron-damaged SWCNH is released at 400-430 degrees C while the main peak in the neutron-damaged graphite occurs at 200-220 degrees C. The radiation damaged SWCNH were examined with FT-IR spectroscopy showing the formation of acetylenic and aliphatic moieties suggesting the aromatic C=C breakdown caused by the neutron bombardment. (literal)
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