Onishchenko D.V.,Far East Federal University |
Reva V.P.,Far East Federal University
Refractories and Industrial Ceramics | Year: 2013
Promising technology is presented for obtaining multilayer carbon nanotubes from renewable plant raw material: Sphagnum moss and Katerina SV strain maize waste. It is shown that with mechanochemical treatment of amorphous carbon, synthesized by pyrolysis from brown Sphagnum, there is formation of carbon nanotubes. The yield of nanotubes is from 19 wt.% after 7 h mechanical activation and up to 75 wt.% after 27 h. With treatment of amorphous carbon obtained from maize waste the yield of nanotubes with the same mechanical treatment duration is 11 and 42 wt.%. © 2013 Springer Science+Business Media New York.
Zvereva V.,Far East Federal University |
Krupskaya L.,Pacific State University
Chemical Engineering III - Proceedings of the 3rd SREE Conference on Chemical Engineering, CCE 2013 | Year: 2014
The intensive use of mineral resources over the last century governed the active development of the mining industry in Russia. The tin, copper-tin, and tin-polymetal deposits in Komsomolsk district have been mining for more than 70 years that resulted in the mining-industrial technogene system composed of numerous mine workings, ditches, strippings, quarries, adits, and three tailing dumps. Millions tons of wastes have been stored in the tailing dumps. The reclamaition of them has not been done so the sulfide component of the tails is continuously being oxidized. The mining-industrial technogene system acts on the ecosphere components.
Reva V.P.,Far East Federal University |
Filatenkov A.E.,Far East Federal University |
Mansurov Y.N.,Far East Federal University |
Kuryavyi V.G.,RAS Institute of Chemistry
Refractories and Industrial Ceramics | Year: 2016
Stages of multilayer carbon nanotube formation are studied during mechanical activation of amorphous carbon prepared by pyrolysis from plant raw material. It is shown that prolonged mechanical activation of a carbon composite in a vario-planetary mill (>36 h) leads to formation of aggregates and loss of nanotube thermal stability. © 2016, Springer Science+Business Media New York.