About: Graphene materials preparation methods have dramatic influence upon their capacitance

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Graphene related materials are widely expected to play a major role as materials for the construction of supercapacitors. We demonstrate here that graphene oxides prepared by various well-established methods exhibit dramatically different capacitances. We exfoliated graphite oxide sonographically to graphene oxide (GO) and we reduced GO by chemical or electrochemical means to chemically reduced graphene oxide (CRGO) and electrochemically reduced graphene oxide (ERGO); in addition, graphite oxide was thermally exfoliated leading to thermally reduced graphene oxide (TRGO). We found clear dependence of weight specific capacitance upon amount of oxygen containing groups presented on the surface of these graphenes. GO exhibits the lowest and TRGO the highest values of weight specific capacitance. Graphene related materials are widely expected to play a major role as materials for the construction of supercapacitors. We demonstrate here that graphene oxides prepared by various well-established methods exhibit dramatically different capacitances. We exfoliated graphite oxide sonographically to graphene oxide (GO) and we reduced GO by chemical or electrochemical means to chemically reduced graphene oxide (CRGO) and electrochemically reduced graphene oxide (ERGO); in addition, graphite oxide was thermally exfoliated leading to thermally reduced graphene oxide (TRGO). We found clear dependence of weight specific capacitance upon amount of oxygen containing groups presented on the surface of these graphenes. GO exhibits the lowest and TRGO the highest values of weight specific capacitance. (en)
Title	Graphene materials preparation methods have dramatic influence upon their capacitance Graphene materials preparation methods have dramatic influence upon their capacitance (en)
skos:prefLabel	Graphene materials preparation methods have dramatic influence upon their capacitance Graphene materials preparation methods have dramatic influence upon their capacitance (en)
skos:notation	RIV/60461373:22310/12:43893539!RIV13-MSM-22310___
http://linked.open...avai/predkladatel	Fakulta chemické technologie
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Sofer, Zdeněk
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	138402
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/12:43893539
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Graphene oxide; Capacitance; Graphene (en)
http://linked.open.../riv/klicoveSlovo	Capacitance Graphene oxide Graphene
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[89E51CF241BF]
http://linked.open...i/riv/nazevZdroje	Electrochemistry Communications
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	14
http://linked.open...iv/tvurceVysledku	Pumera, Martin Sofer, Zdeněk Ambrosi, Adriano Buglione, Lucia Chng, Elaine Lay Khim
http://linked.open...ain/vavai/riv/wos	000300199900002
issn	1388-2481
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.elecom.2011.09.013
http://localhost/t...ganizacniJednotka	22310
is http://linked.open...avai/riv/vysledek of	Graphene materials preparation methods have dramatic influence upon their capacitance

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