KUBESA, Ondřej, Karel LACINA, Veronika HORÁČKOVÁ and Petr SKLÁDAL. About graphene oxide. In CEITEC PhD Retreat II. 2017. ISBN 978-80-210-8550-3.
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Basic information
Original name About graphene oxide
Authors KUBESA, Ondřej, Karel LACINA, Veronika HORÁČKOVÁ and Petr SKLÁDAL.
Edition CEITEC PhD Retreat II, 2017.
Other information
Original language English
Type of outcome Conference abstract
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Central European Institute of Technology
ISBN 978-80-210-8550-3
Tags International impact
Changed by Changed by: Mgr. Veronika Horáčková, Ph.D., učo 211060. Changed: 16/5/2017 15:15.
Abstract
Popularity of graphene oxide (GO) became ballistic in the last few years – in short, it almost seems that now everyone wants to work with graphene. However, as the number of electrochemical papers about graphene grows, so is the amount of misinterpretations. Our work was mostly focused on preparation of GO and its electrochemical properties, namely catalysis. Our results show, that chemical preparation of GO by strong oxidation is very tricky. Several approaches were tested, such as different sizes of graphite particles, oxidation mixtures, even repetitive preparations under the same conditions usually resulted in different products. Another big topic are impurities which are present due to natural occurrence in graphite and some of them might be also introduced during purification processes of GO. This could also lead to often observed catalytic activity of graphene. From our observations neither selectivity nor significant electrocatalytic abilities of the reduced graphene oxide modified electrodes towards H2O2 were observed. Moreover, our results suggest that GO does not need linking molecules in order to be deposited onto the surface of the electrodes, since it attaches spontaneously and keeps its electrochemical properties. Graphene is usually reported as a superior material, but its proper description and characterization should not be underestimated.
Links
LQ1601, research and development projectName: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
PrintDisplayed: 28/8/2024 12:05