Thermal properties Raman Spectroscopy and TEM images of Neutron Bombarded Graphite

Eugenio Caponetti; Ornella Ursini; Franco Cataldo; Tibor Braun

Thermal properties Raman Spectroscopy and TEM images of Neutron Bombarded Graphite

Eugenio Caponetti, Ornella Ursini, Franco Cataldo, Tibor Braun

Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche

Risultato della ricerca: Book/Film/Article review › peer review

13 Citazioni (Scopus)

Abstract

Neutron-irradiated graphite to a total dose of 3.6 × 1016 n cm−2 was studied by DSC, Raman spectroscopy and transmission electron microscopy (TEM). The Wigner energy of neutron-irradiated graphite was 9.5 J/g as measured by DSC; it was released with an exothermal peak at 220°C. The Raman spectroscopy has confirmed the expected effect caused by neutron irradiation of the graphite substrate. The TEM imaging has shown that neutron-irradiated graphite can be effectively exfoliated by sonication in comparison to pristine graphite, which under similar conditions does not exfoliate at all. The interstitial Frenkel defects in neutron-irradiated graphite are intercalated between the graphene layers of the graphite and favor the exfoliation under adequate conditions.

Lingua originale	English
pagine (da-a)	634-643
Numero di pagine	10
Rivista	FULLERENES, NANOTUBES AND CARBON NANOSTRUCTURES
Volume	21
Stato di pubblicazione	Published - 2013

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
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Physical and Theoretical Chemistry
Organic Chemistry

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title = "Thermal properties Raman Spectroscopy and TEM images of Neutron Bombarded Graphite",

abstract = "Neutron-irradiated graphite to a total dose of 3.6 × 1016 n cm−2 was studied by DSC, Raman spectroscopy and transmission electron microscopy (TEM). The Wigner energy of neutron-irradiated graphite was 9.5 J/g as measured by DSC; it was released with an exothermal peak at 220°C. The Raman spectroscopy has confirmed the expected effect caused by neutron irradiation of the graphite substrate. The TEM imaging has shown that neutron-irradiated graphite can be effectively exfoliated by sonication in comparison to pristine graphite, which under similar conditions does not exfoliate at all. The interstitial Frenkel defects in neutron-irradiated graphite are intercalated between the graphene layers of the graphite and favor the exfoliation under adequate conditions.",

author = "Eugenio Caponetti and Ornella Ursini and Franco Cataldo and Tibor Braun",

year = "2013",

language = "English",

volume = "21",

pages = "634--643",

journal = "Fullerenes Nanotubes and Carbon Nanostructures",

issn = "1536-383X",

publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Thermal properties Raman Spectroscopy and TEM images of Neutron Bombarded Graphite

AU - Caponetti, Eugenio

AU - Ursini, Ornella

AU - Cataldo, Franco

AU - Braun, Tibor

PY - 2013

Y1 - 2013

N2 - Neutron-irradiated graphite to a total dose of 3.6 × 1016 n cm−2 was studied by DSC, Raman spectroscopy and transmission electron microscopy (TEM). The Wigner energy of neutron-irradiated graphite was 9.5 J/g as measured by DSC; it was released with an exothermal peak at 220°C. The Raman spectroscopy has confirmed the expected effect caused by neutron irradiation of the graphite substrate. The TEM imaging has shown that neutron-irradiated graphite can be effectively exfoliated by sonication in comparison to pristine graphite, which under similar conditions does not exfoliate at all. The interstitial Frenkel defects in neutron-irradiated graphite are intercalated between the graphene layers of the graphite and favor the exfoliation under adequate conditions.

AB - Neutron-irradiated graphite to a total dose of 3.6 × 1016 n cm−2 was studied by DSC, Raman spectroscopy and transmission electron microscopy (TEM). The Wigner energy of neutron-irradiated graphite was 9.5 J/g as measured by DSC; it was released with an exothermal peak at 220°C. The Raman spectroscopy has confirmed the expected effect caused by neutron irradiation of the graphite substrate. The TEM imaging has shown that neutron-irradiated graphite can be effectively exfoliated by sonication in comparison to pristine graphite, which under similar conditions does not exfoliate at all. The interstitial Frenkel defects in neutron-irradiated graphite are intercalated between the graphene layers of the graphite and favor the exfoliation under adequate conditions.

UR - http://hdl.handle.net/10447/74665

M3 - Book/Film/Article review

VL - 21

SP - 634

EP - 643

JO - Fullerenes Nanotubes and Carbon Nanostructures

JF - Fullerenes Nanotubes and Carbon Nanostructures

SN - 1536-383X

ER -