Ripplocation in graphite nanoplatelets during sonication assisted liquid phase exfoliation
Mesoscale and Nanoscale Physics
2019-06-14 v1 Materials Science
Abstract
Defects induced by liquid-phase exfoliation of graphite using sonication were studied. It was shown that localized impact by cavitation shock waves can produce bulk ripplocations and various types of dislocations in graphite nanoplatelets. Formation of ripples is more pronounced in large aspect (length/width) ratio platelets or nanobelts. Quasi-periodical ripple systems were observed in many nanobelts after sonication. Mechanism of formation of ripples and dislocations during sonication was proposed. Surprisingly, fast high-temperature processing was found to anneal most of defects. This is consistent with our observations that defects associated with ripplocations are strongly localized and thus can be fast annealed.
Keywords
Cite
@article{arxiv.1906.05391,
title = {Ripplocation in graphite nanoplatelets during sonication assisted liquid phase exfoliation},
author = {A. V. Alaferdov and R. Savu and M. A. Canesqui and Y. V. Kopelevich and R. R. da Silva and N. N. Rozhkova and D. A. Pavlov and Yu. V. Usov and G. M. de Trindade and S. A. Moshkalev},
journal= {arXiv preprint arXiv:1906.05391},
year = {2019}
}
Comments
16 pages, 9 figures