The influence of duration of mechanical activation of amorphous carbon produced by plant material pyrolysis on the morphology of moldable multilayer carbon nanotubes is studied. The maximum nanotube yield is observed when amorphous carbon is mechanically activated for 36 hours. The nanotube yield depends a great deal on the type of plant materials submitted to pyrolysis. It is demonstrated that prolonged mechanical activation of carbon composite in a vario-planetary mill leads to formation of aggregates consisting of multilayer nanotubes and amorphous carbon and to loss of thermal stability of nanotubes. This fact is responsible for the decrease in carbon nanotube content in products of vacuum annealing carried out for nanotube purification.
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This work was accomplished with the financial support of the Ministry of Education and Science of the Russian Federation in accordance with the provision P 218, agreement No. 02.G25.31.0035-225, dated 12.02.2013, between OAO Dal’nevostochnyi Zavod “Zvezda” (OJSC Far East Plant “Star”) and the Ministry of Education and Science of the Russian Federation.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 5 – 9, September – October, 2015.
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Reva, V.P., Filatenkov, A.E., Mansurov, Y.N. et al. Influence of Duration of Mechanical Activation of Plant Material Pyrolysis Products on Thermal Stability of Moldable Multilayer Carbon Nanotubes. Chem Technol Fuels Oils 51, 431–437 (2015). https://doi.org/10.1007/s10553-015-0621-x
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DOI: https://doi.org/10.1007/s10553-015-0621-x