HYDROGEN STORAGE PROPERTIES OF GRAPHENE OXIDE MATERIALS PREPARED BY DIFFERENT WAYS

0511078 - ÚFM 2020 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Král, Lubomír - Čermák, Jiří - Bytesnikova, Z.
HYDROGEN STORAGE PROPERTIES OF GRAPHENE OXIDE MATERIALS PREPARED BY DIFFERENT WAYS.
9TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2017). Ostrava: TANGER, 2018, s. 94-98. ISBN 978-80-87294-81-9.
[NANOCON 2017. International Conference on Nanomaterials - Research and Application /9./. Brno (CZ), 18.10.2017-20.10.2017]
Grant CEP: GA ČR(CZ) GA17-21683S
Institucionální podpora: RVO:68081723
Klíčová slova: Graphene oxide * hydrogen storage * adsorption * adsorption
Obor OECD: Materials engineering

Graphene-based materials show unique properties. These single layered materials consist of 2D structure of carbon atoms, belong to the strongest known materials, that are very mechanically flexible, optically transparent and that are excellent electrical and thermal conductors. Recently, several studies on these types of materials have highlighted the potential of this material for hydrogen storage (HS) and raised new hopes for the development of an effective solid-state HS media. In the present paper, the structure and HS properties of graphene oxide (GO) and chemically reduced graphene oxide (rGO) produced by different procedures were studied. Hydrogen sorption characteristics of GO and rGO were measured using the Sieverts-type gas sorption analyzer PCT-Pro Setaram Instrumentation. The study of HS was carried out at temperature range from 198 K to 423 K under hydrogen pressure from 1x10(-4) to 4 MPa.

For the HS point of view, the advantage of GO or rGO compared to graphene, is the presence of multiple chemical groups that can be used for introducing modifiers and their superior spreading on the materials surface. The suitably functionalized GO or rGO materials could potentially exhibit outstanding HS properties.
Trvalý link: http://hdl.handle.net/11104/0301411