Graphene materials preparation methods have dramatic influence upon their capacitance

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Graphene materials preparation methods have dramatic influence upon their capacitance
Original language 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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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