Graphene materials preparation methods have dramatic influence upon their capacitance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43893539" target="_blank" >RIV/60461373:22310/12:43893539 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.elecom.2011.09.013" target="_blank" >http://dx.doi.org/10.1016/j.elecom.2011.09.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.elecom.2011.09.013" target="_blank" >10.1016/j.elecom.2011.09.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Graphene materials preparation methods have dramatic influence upon their capacitance

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Graphene materials preparation methods have dramatic influence upon their capacitance

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrochemistry Communications

ISSN

1388-2481

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

5-8

Kód UT WoS článku

000300199900002

EID výsledku v databázi Scopus

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