Influence of different oxidation mechanisms on the exfoliation of intercalated graphite bisulfate using two types of graphite Influência de diferentes mecanismos de oxidação na exfoliação de bisulfato de grafite intercalado usando dois tipos de grafite

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dc.contributor.authorEspinosa Martinez J.A.
dc.contributor.authorSanchez Junior M.
dc.contributor.authorNobre Golcalves A.
dc.contributor.authorOrrego R.M.M.
dc.contributor.authorFlorencio O.
dc.date.accessioned2024-03-12T19:23:03Z
dc.date.available2024-03-12T19:23:03Z
dc.date.issued2021
dc.description.abstract© 2021, Universidade Federal do Rio de Janeiro. All rights reserved.Three different processes for the synthetization of exfoliated graphite intercalation compound have been test-ed in two different type of graphite, one in powder form and the other one as flakes. Each graphite was oxidized applying the same experimental conditions (sonification, neutralization, filtering and drying) but using three different auxiliary oxidizers (H2O2, HNO3 and KClO3) previously mixed with H2 SO4. The resulting synthesized samples were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy. The Raman spectra analysis of the oxidized samples correspond to that of a graphene of few layers. Stronger delamination and exfoliation were observed in the samples of graphite, originally in powder form, treated with H2 SO4/HNO3.
dc.description.issuenumber2
dc.description.volume26
dc.identifier.doi10.1590/S1517-707620210002.1293
dc.identifier.issn1517-7076
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34799
dc.relation.ispartofRevista Materia
dc.rightsAcesso Aberto
dc.subject.otherlanguageGraphene
dc.subject.otherlanguageGraphite
dc.subject.otherlanguageIntercalation
dc.subject.otherlanguageRaman spectroscopy
dc.titleInfluence of different oxidation mechanisms on the exfoliation of intercalated graphite bisulfate using two types of graphite Influência de diferentes mecanismos de oxidação na exfoliação de bisulfato de grafite intercalado usando dois tipos de grafite
dc.typeArtigo
local.scopus.citations2
local.scopus.eid2-s2.0-85108254452
local.scopus.updated2024-07-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85108254452&origin=inward
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