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Structural phase modifications induced by energetic ion beams in graphene oxide
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SYSNO ASEP 0547018 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Structural phase modifications induced by energetic ion beams in graphene oxide Author(s) Torrisi, L. (IT)
Manno, D. (IT)
Serra, A. (IT)
Torrisi, A. (IT)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Silipigni, L. (IT)Number of authors 6 Article number 110513 Source Title Vacuum. - : Elsevier - ISSN 0042-207X
Roč. 193, NOV (2021)Number of pages 13 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords rGO ; ion beam irradiation ; dose ; XRD analysis ; ion beams inducing carbon modifications OECD category Nuclear physics R&D Projects EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000703888600002 EID SCOPUS 85113709487 DOI 10.1016/j.vacuum.2021.110513 Annotation Different ion beams, with energy from 2 MeV up to 16 MeV at different atomic number, have been employed to irradiate graphene oxide (GO) foils in vacuum. Due to effects of electron and nuclear ion stopping powers, the ion energy deposition reduces the irradiated GO foils and structurally modifies them. The ion bombarded GO foils Xray diffraction (XRD) investigations have permitted to shed light on the different structural phases induced by the ion energy deposition. The changes in the GO foils pristine structure shift the diffraction main peak towards larger angles and produce new diffraction peaks indicating the presence of new phases, such as reduced GO (rGO), carbon nanotubes (CNT), amorphous carbon (a-C), onion like carbon (OLC) and probably new carbon allotropes. The obtained results indicate that the inner structure of the GO foils becomes more and more compact and dense with the absorbed dose, suggesting that the removal of the functional oxygen groups leads to a near graphite structure with a significant increase of the material mass density. The different structural phase modifications induced by the different ion beams as a function of the stopping power, fluence and dose will be presented and discussed in detail. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.vacuum.2021.110513
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