| Issue |
MATEC Web Conf.
Volume 132, 2017
XIII International Scientific-Technical Conference “Dynamic of Technical Systems” (DTS-2017)
|
|
|---|---|---|
| Article Number | 03015 | |
| Number of page(s) | 4 | |
| Section | Issues of mechanics of heterogeneous and composite materials | |
| DOI | https://doi.org/10.1051/matecconf/201713203015 | |
| Published online | 31 October 2017 | |
Fractal microgeometry of original and hydgrogen-charged graphene multilayer films surface: research by the low-temperature sorption of nitrogen method
1 «Karpov Institute of Physical Chemistry», 105064 Moscow, Russian Federation.
2 Lomonosov Moscow State University, Faculty of Bioengineering and Bioinformatics, 119234 Moscow Russian Federation
3 Dmitry Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russian Federation
* Corresponding author: vasileva@nifhi.ru
Changes in the surface microgeometry of multilayer graphene films, as a result of hydrogen adsorption (1% mass.), have been examined by the method of low-temperature fractal sorption of nitrogen. It is established that hydrogen atmosphere treatment leads to the significant development of graphene surface and lowers the first layer heat adsorption from 289 down to 260J/kg. There have been found out as well the overall mesopores concentration growth and pore size distribution function broadening. At that, the surface fractal dimension value has grown from 2,52 up to 2,67, which is to give us an evidence of the surface chaotization as a result of hydrogen withdrawal into the atmosphere and the graphene surface erosion.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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