About: Towards graphene bromide: bromination of graphite oxide

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://pubs.rsc.org/en/content/articlepdf/2014/nr/c4nr01154f
Description	Halogenated graphene derivatives are interesting for their outstanding physical and chemical properties. In this paper, we present various methods for the synthesis of brominated graphene derivatives by the bromination of graphite oxides. Graphite oxides, prepared according to either the Hummers or Hofmann method, were brominated using bromine or hydrobromic acid under reflux or in an autoclave at elevated temperatures and pressures. The influence of both graphite oxide precursors on the resulting brominated graphenes was investigated by characterization of the graphenes, which was carried out using various techniques, including SEM, SEM-EDS, high-resolution XPS, FTIR, STA and Raman spectroscopy. In addition, the resistivity of the brominated graphenes was measured and the electrochemical properties were investigated by cyclic voltammetry. Although the brominated graphenes were structurally similar, they had remarkably different bromine concentrations. The most highly brominated graphene (bromine concentration above 26 wt%) exhibited a C/O ratio above 44 and partial hydrogenation. Brominated graphenes with such properties could be used for reversible bromine storage or as a starting material for further chemical modifications Halogenated graphene derivatives are interesting for their outstanding physical and chemical properties. In this paper, we present various methods for the synthesis of brominated graphene derivatives by the bromination of graphite oxides. Graphite oxides, prepared according to either the Hummers or Hofmann method, were brominated using bromine or hydrobromic acid under reflux or in an autoclave at elevated temperatures and pressures. The influence of both graphite oxide precursors on the resulting brominated graphenes was investigated by characterization of the graphenes, which was carried out using various techniques, including SEM, SEM-EDS, high-resolution XPS, FTIR, STA and Raman spectroscopy. In addition, the resistivity of the brominated graphenes was measured and the electrochemical properties were investigated by cyclic voltammetry. Although the brominated graphenes were structurally similar, they had remarkably different bromine concentrations. The most highly brominated graphene (bromine concentration above 26 wt%) exhibited a C/O ratio above 44 and partial hydrogenation. Brominated graphenes with such properties could be used for reversible bromine storage or as a starting material for further chemical modifications (en)
Title	Towards graphene bromide: bromination of graphite oxide Towards graphene bromide: bromination of graphite oxide (en)
skos:prefLabel	Towards graphene bromide: bromination of graphite oxide Towards graphene bromide: bromination of graphite oxide (en)
skos:notation	RIV/60461373:22310/14:43897399!RIV15-MSM-22310___
http://linked.open...avai/riv/aktivita	I S
http://linked.open...avai/riv/aktivity	I, S
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Sedmidubský, David Sofer, Zdeněk Jankovský, Ondřej Klímová, Kateřina Šimek, Petr
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	50827
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43897399
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	REDUCTION; VOLTAMMETRY; EXFOLIATION; PERSPECTIVES; RAMAN-SPECTROSCOPY (en)
http://linked.open.../riv/klicoveSlovo	RAMAN-SPECTROSCOPY EXFOLIATION REDUCTION PERSPECTIVES VOLTAMMETRY
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[6E0ABCF103BE]
http://linked.open...i/riv/nazevZdroje	Nanoscale
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	6
http://linked.open...iv/tvurceVysledku	Pumera, Martin Sofer, Zdeněk Šimek, Petr Sedmidubský, David Jankovský, Ondřej Klímová, Kateřina Matějková, Stanislava
http://linked.open...ain/vavai/riv/wos	000336883000069
issn	2040-3364
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c4nr01154f
http://localhost/t...ganizacniJednotka	22310

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