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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F13%3A33145709%21RIV14-GA0-15310___
rdf:type
n8:Vysledek skos:Concept
rdfs:seeAlso
http://pubs.acs.org/doi/ipdf/10.1021/jp401277g
dcterms:description
Liquid-phase exfoliation of graphite is a widely used method to obtain graphene nanosheets, and therefore the development of a simple and efficient exfoliation procedure remains challenging. Here, we present a one-step method of graphene exfoliation in lecithin/chloroform solution. The graphene nanosheets produced by the lecithin assisted exfoliation method were analyzed by microscopy techniques, including statistical analysis of atomic force microscopy (AFM) images and Raman spectroscopy, which both indicate the presence of few-layer graphene nanosheets, including substantial content of three-layer sheets. Molecular dynamics simulations on the time scale of 0.5+ mu s suggested that stability of the obtained colloid may originate from formation of lecithin reverse hemimicelles and micelles, which prevents the aggregation of exfoliated graphene flakes by entropic repulsion of the lipid hydrophobic chains. Liquid-phase exfoliation of graphite is a widely used method to obtain graphene nanosheets, and therefore the development of a simple and efficient exfoliation procedure remains challenging. Here, we present a one-step method of graphene exfoliation in lecithin/chloroform solution. The graphene nanosheets produced by the lecithin assisted exfoliation method were analyzed by microscopy techniques, including statistical analysis of atomic force microscopy (AFM) images and Raman spectroscopy, which both indicate the presence of few-layer graphene nanosheets, including substantial content of three-layer sheets. Molecular dynamics simulations on the time scale of 0.5+ mu s suggested that stability of the obtained colloid may originate from formation of lecithin reverse hemimicelles and micelles, which prevents the aggregation of exfoliated graphene flakes by entropic repulsion of the lipid hydrophobic chains.
dcterms:title
Lipid Enhanced Exfoliation for Production of Graphene Nanosheets Lipid Enhanced Exfoliation for Production of Graphene Nanosheets
skos:prefLabel
Lipid Enhanced Exfoliation for Production of Graphene Nanosheets Lipid Enhanced Exfoliation for Production of Graphene Nanosheets
skos:notation
RIV/61989592:15310/13:33145709!RIV14-GA0-15310___
n8:predkladatel
n9:orjk%3A15310
n4:aktivita
n14:S n14:P
n4:aktivity
P(ED2.1.00/03.0058), P(GAP208/10/1742), P(GBP208/12/G016), S
n4:cisloPeriodika
22
n4:dodaniDat
n15:2014
n4:domaciTvurceVysledku
n12:1289322 n12:7008686 n12:3151948 n12:3843912 n12:6536328 n12:9251189
n4:druhVysledku
n17:J
n4:duvernostUdaju
n20:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
85056
n4:idVysledku
RIV/61989592:15310/13:33145709
n4:jazykVysledku
n11:eng
n4:klicovaSlova
solvents; graphite; dispersions; bilayer graphene; molecular simulation; liquid-phase exfoliation
n4:klicoveSlovo
n10:liquid-phase%20exfoliation n10:molecular%20simulation n10:bilayer%20graphene n10:solvents n10:graphite n10:dispersions
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[A45CF99BCD2A]
n4:nazevZdroje
Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter
n4:obor
n21:CF
n4:pocetDomacichTvurcuVysledku
6
n4:pocetTvurcuVysledku
7
n4:projekt
n5:GBP208%2F12%2FG016 n5:ED2.1.00%2F03.0058 n5:GAP208%2F10%2F1742
n4:rokUplatneniVysledku
n15:2013
n4:svazekPeriodika
117
n4:tvurceVysledku
Otyepka, Michal Jurečka, Petr Šafářová, Klára Zbořil, Radek Machalová Šišková, Karolína Bourlinos, Athanasios B Pykal, Martin
n4:wos
000320214800042
s:issn
1932-7447
s:numberOfPages
4
n19:doi
10.1021/jp401277g
n18:organizacniJednotka
15310