Effect of Temperature and Acoustic Pressure During Ultrasound Liquid-Phase Processing of Graphite in Water

Morton, Justin A.; Eskin, Dmitry G.; Grobert, Nicole; Mi, Jiawei; Porfyrakis, Kyriakos; Prentice, Paul; Tzanakis, Iakovos

doi:10.1007/s11837-021-04910-9

Effect of Temperature and Acoustic Pressure During Ultrasound Liquid-Phase Processing of Graphite in Water

Morton, Justin A.; Eskin, Dmitry G.; Grobert, Nicole; Mi, Jiawei; Porfyrakis, Kyriakos; Prentice, Paul; Tzanakis, Iakovos

Authors

Justin A. Morton

Dmitry G. Eskin

Nicole Grobert

Professor Jiawei Mi J.Mi@hull.ac.uk
Professor of Materials

Kyriakos Porfyrakis

Paul Prentice

Iakovos Tzanakis

Abstract

Ultrasound-assisted liquid-phase exfoliation is a promising method for manufacturing two-dimensional materials. Understanding the effect of ultrasonication parameters such as the temperature and input power on the developed pressure field is pivotal for optimization of the process. Limited research has been carried out to determine the optimal temperature for exfoliation, with some data generating disputed results. Simply maximizing the sonication power does not necessarily produce a higher yield because of shielding. In this study, a high-temperature calibrated cavitometer was used to measure the acoustic pressure generated in different graphite solutions in deionized water at various temperatures (from 10°C to 70°C) and input power conditions (from 20% to 100%). In addition, high-speed optical imaging provided insight on the shock wave generation from transient bubble collapses under different sonication conditions. The optimal sono-exfoliation parameters were determined to be 20% input power at 10°C for graphite flake solution, and 100% input power at 40°C to 50°C for graphite powder solution.

Citation

Morton, J. A., Eskin, D. G., Grobert, N., Mi, J., Porfyrakis, K., Prentice, P., & Tzanakis, I. (2021). Effect of Temperature and Acoustic Pressure During Ultrasound Liquid-Phase Processing of Graphite in Water. JOM Journal of the Minerals, Metals and Materials Society, https://doi.org/10.1007/s11837-021-04910-9

Journal Article Type	Article
Acceptance Date	Sep 13, 2021
Online Publication Date	Oct 26, 2021
Publication Date	2021-12
Deposit Date	Apr 11, 2022
Publicly Available Date	Apr 11, 2022
Journal	JOM
Print ISSN	1047-4838
Electronic ISSN	1543-1851
Publisher	Springer
Peer Reviewed	Peer Reviewed
DOI	https://doi.org/10.1007/s11837-021-04910-9
Public URL	https://hull-repository.worktribe.com/output/3868310

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