HYDROGEN STORAGE PROPERTIES OF GRAPHENE OXIDE MATERIALS PREPARED BY DIFFERENT WAYS

1 Král Lubomír
Co-authors:
1,2 Čermák Jiří 3 Bytešníková Zuzana
Institutions:
1 Institute of Physics of Materials AS CR, v.v.i., Zizkova 22, CZ-61662 Brno, Czech Republic, EU
2 CEITEC-Institute of Physics of Materials, Zizkova 22, CZ-61662 Brno, Czech Republic, EU
3 Faculty of Agronomy, Mendel University in Brno, Zemedelska 1/1665,CZ-613 00 Brno, Czech Republic, EU
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
94-98
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
21 views / 8 downloads
Abstract

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.

Keywords: graphene oxide, hydrogen storage, adsorption, desorption
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