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2D boron nitride nanosheets (BNNS) prepared by high-pressure homogenisation : structure and morphology
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Guerra, Valentina, Wan, Chaoying, Degirmenci, Volkan, Sloan, Jeremy, Presvytis, Dimitris and McNally, Tony (2018) 2D boron nitride nanosheets (BNNS) prepared by high-pressure homogenisation : structure and morphology. Nanoscale, 10 (41). 19469-19477 . doi:10.1039/C8NR06429F
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WRAP-2D-boron-nitride-nanosheets-(BNNS)-prepared-high-pressure-homogenisation-McNally-2018.pdf - Accepted Version - Requires a PDF viewer. Download (2245Kb) | Preview |
Official URL: http://dx.doi.org/10.1039/C8NR06429F
Abstract
2D Boron Nitride Nano-sheets (BNNS) were prepared using a high-pressure homogenisation process to exfoliate bulk hexagonal boron nitride (h-BN). The effectiveness of this process was studied by characterising bulk h-BN and BNNS post-processing using numerous techniques. The BNNS produced was composed of a mixture of sheets having lengths on the nanometre (nm) scale, but lateral thicknesses on the micron (μm) length scale. The product was a macro-porous material containing slit-like pores with a surface area of 170 m2 g−1. It had a polycrystalline structure with d002 = 0.335 nm and L002 = 2 nm. From the sharp E2g peak in the Raman spectrum at 1360 cm−1 (FWHM = 12.5 cm−1), the sheets had a low defect density and were highly exfoliated. X-Ray photoelectron spectroscopy (XPS) studies detected B–OH and N–H groups on the BNNS surface and the presence of residual surfactant. Contact angle measurements (60° ± 3° (0 s); 40° ± 2° (10 s)) confirmed a hydrophilic surface. The BNNS was thermally stable under oxidative conditions up to 323 °C.
| Item Type: | Journal Article | |||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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| Library of Congress Subject Headings (LCSH): | Nanostructured materials, Boron nitride, Raman spectroscopy -- Industrial applications | |||||||||
| Journal or Publication Title: | Nanoscale | |||||||||
| Publisher: | Royal Society of Chemistry | |||||||||
| ISSN: | 2040-3364 | |||||||||
| Official Date: | 8 October 2018 | |||||||||
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| Volume: | 10 | |||||||||
| Number: | 41 | |||||||||
| Page Range: | 19469-19477 | |||||||||
| DOI: | 10.1039/C8NR06429F | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| RIOXX Funder/Project Grant: |
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