About: Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres

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About: Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://pubs.rsc.org/en/content/articlehtml/2014/tc/c4tc00395k
Description	Functionalization of graphene with heteroatoms is of paramount interest. Doping of graphene materials with electron withdrawing groups leads to the opening of the band gap which further results in a change of its electronic and electrochemical properties. Fluorine exhibits the largest electronegativity and thus it is expected that fluorographenes will have significantly different properties from graphene. Fluorinated graphene was prepared by a scalable method using thermal treatments (at different temperatures) or microwave plasma exfoliation of graphite oxides (prepared via chlorate or permanganate routes) in atmospheres containing SF6, SF4 or MoF6 fluorination agents. We characterized the resulting fluorographenes by scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, combustible elemental analysis and cyclic voltammetry. It was observed that with increasing fluorine content the heterogeneous electron transfer rates increased. The scalable fluorination of graphene with relatively low-toxic agents which yields high-performance electrochemical materials should find many applications in electrochemical devices, such as sensors or supercapacitors. Functionalization of graphene with heteroatoms is of paramount interest. Doping of graphene materials with electron withdrawing groups leads to the opening of the band gap which further results in a change of its electronic and electrochemical properties. Fluorine exhibits the largest electronegativity and thus it is expected that fluorographenes will have significantly different properties from graphene. Fluorinated graphene was prepared by a scalable method using thermal treatments (at different temperatures) or microwave plasma exfoliation of graphite oxides (prepared via chlorate or permanganate routes) in atmospheres containing SF6, SF4 or MoF6 fluorination agents. We characterized the resulting fluorographenes by scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, combustible elemental analysis and cyclic voltammetry. It was observed that with increasing fluorine content the heterogeneous electron transfer rates increased. The scalable fluorination of graphene with relatively low-toxic agents which yields high-performance electrochemical materials should find many applications in electrochemical devices, such as sensors or supercapacitors. (en)
Title	Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres (en)
skos:prefLabel	Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres Fluorographenes via thermal exfoliation of graphite oxide in SF6, SF4 and MoF6 atmospheres (en)
skos:notation	RIV/60461373:22310/14:43897478!RIV15-MSM-22310___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	26
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Sofer, Zdeněk Klímová, Kateřina
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	17108
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43897478
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	BORON; FLUORINATION; OXYGEN REDUCTION; HYDROGENATED GRAPHENE; SULFUR-DOPED GRAPHENE; REDUCED GRAPHENE OXIDE (en)
http://linked.open.../riv/klicoveSlovo	HYDROGENATED GRAPHENE OXYGEN REDUCTION FLUORINATION REDUCED GRAPHENE OXIDE SULFUR-DOPED GRAPHENE BORON
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[48AADE83B4B9]
http://linked.open...i/riv/nazevZdroje	Journal of Materials Chemistry C
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	2
http://linked.open...iv/tvurceVysledku	Pumera, Martin Sofer, Zdeněk Klímová, Kateřina Poh, Hwee Ling
http://linked.open...ain/vavai/riv/wos	000337786900019
issn	2050-7526
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c4tc00395k
http://localhost/t...ganizacniJednotka	22310

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