Ripplocation in graphite nanoplatelets during sonication assisted liquid phase exfoliation
A. V. Alaferdov, R. Savu, M. A. Canesqui, Y. V. Kopelevich, R. R. da Silva, N. N. Rozhkova, D. A. Pavlov, Yu. V. Usov, G. M. de Trindade, S. A. Moshkalev
EDITORIAL
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Agradecimentos: The authors thank CNPq, FAPESP and FINEP (Brazil) for financial support, the CCS Nano staff for technical assistance, and A.V. Bobrov (Lobachevsky State University) for his technical assistance in HR-TEM imaging. This study was also supported by the Ministry of Education and Science...
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Agradecimentos: The authors thank CNPq, FAPESP and FINEP (Brazil) for financial support, the CCS Nano staff for technical assistance, and A.V. Bobrov (Lobachevsky State University) for his technical assistance in HR-TEM imaging. This study was also supported by the Ministry of Education and Science of Russian Federation (Project No. 8.1751.2017/PCh)
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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...
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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
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
FINANCIADORA DE ESTUDOS E PROJETOS - FINEP
Aberto
Ripplocation in graphite nanoplatelets during sonication assisted liquid phase exfoliation
A. V. Alaferdov, R. Savu, M. A. Canesqui, Y. V. Kopelevich, R. R. da Silva, N. N. Rozhkova, D. A. Pavlov, Yu. V. Usov, G. M. de Trindade, S. A. Moshkalev
Ripplocation in graphite nanoplatelets during sonication assisted liquid phase exfoliation
A. V. Alaferdov, R. Savu, M. A. Canesqui, Y. V. Kopelevich, R. R. da Silva, N. N. Rozhkova, D. A. Pavlov, Yu. V. Usov, G. M. de Trindade, S. A. Moshkalev
Fontes
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Carbon Vol. 129 (Apr., 2018), p. 826-829 |