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Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride
Exfoliation or scrolling of hexagonal boron nitride (h-BN) occurs in a vortex fluidic device (VFD) operating under continuous flow, with a tilt angle of −45° relative to the horizontal position. This new VFD processing strategy is effective in avoiding the build-up of material that occurs when the d...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9066649/ https://www.ncbi.nlm.nih.gov/pubmed/35518882 http://dx.doi.org/10.1039/c9ra03970h |
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author | Al-Antaki, Ahmed Hussein Mohammed Luo, Xuan Alharbi, Thaar M. D. Harvey, David P. Pye, Scott Zou, Jin Lawrance, Warren Raston, Colin L. |
author_facet | Al-Antaki, Ahmed Hussein Mohammed Luo, Xuan Alharbi, Thaar M. D. Harvey, David P. Pye, Scott Zou, Jin Lawrance, Warren Raston, Colin L. |
author_sort | Al-Antaki, Ahmed Hussein Mohammed |
collection | PubMed |
description | Exfoliation or scrolling of hexagonal boron nitride (h-BN) occurs in a vortex fluidic device (VFD) operating under continuous flow, with a tilt angle of −45° relative to the horizontal position. This new VFD processing strategy is effective in avoiding the build-up of material that occurs when the device is operated using the conventional tilt angle of +45°, where the h-BN precursor and scrolls are centrifugally held against the wall of the tube. At a tilt angle of −45° the downward flow aided by gravity facilitates material exiting the tube with the exfoliation of h-BN and formation of h-BN scrolls then optimized by systematically varying the other VFD operating parameters, including flow rate and rotational speed, along with concentration of h-BN and the choice of solvent. Water was the most effective solvent, which enhances the green chemistry metrics of the processing. |
format | Online Article Text |
id | pubmed-9066649 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90666492022-05-04 Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride Al-Antaki, Ahmed Hussein Mohammed Luo, Xuan Alharbi, Thaar M. D. Harvey, David P. Pye, Scott Zou, Jin Lawrance, Warren Raston, Colin L. RSC Adv Chemistry Exfoliation or scrolling of hexagonal boron nitride (h-BN) occurs in a vortex fluidic device (VFD) operating under continuous flow, with a tilt angle of −45° relative to the horizontal position. This new VFD processing strategy is effective in avoiding the build-up of material that occurs when the device is operated using the conventional tilt angle of +45°, where the h-BN precursor and scrolls are centrifugally held against the wall of the tube. At a tilt angle of −45° the downward flow aided by gravity facilitates material exiting the tube with the exfoliation of h-BN and formation of h-BN scrolls then optimized by systematically varying the other VFD operating parameters, including flow rate and rotational speed, along with concentration of h-BN and the choice of solvent. Water was the most effective solvent, which enhances the green chemistry metrics of the processing. The Royal Society of Chemistry 2019-07-16 /pmc/articles/PMC9066649/ /pubmed/35518882 http://dx.doi.org/10.1039/c9ra03970h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Al-Antaki, Ahmed Hussein Mohammed Luo, Xuan Alharbi, Thaar M. D. Harvey, David P. Pye, Scott Zou, Jin Lawrance, Warren Raston, Colin L. Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title | Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title_full | Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title_fullStr | Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title_full_unstemmed | Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title_short | Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
title_sort | inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9066649/ https://www.ncbi.nlm.nih.gov/pubmed/35518882 http://dx.doi.org/10.1039/c9ra03970h |
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