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Controlled surface modification of boron nitride nanotubes
journal contribution
posted on 2011-01-01, 00:00 authored by Xiujuan Dai, Ying (Ian) ChenYing (Ian) Chen, Frank ChenFrank Chen, Peter Lamb, Luhua LiLuhua Li, J du Plessis, D McCulloch, Xungai WangControlled surface modification of boron nitride nanotubes has been achieved by gentle plasma treatment. Firstly, it was shown that an amorphous surface layer found on the outside of the nanotubes can be removed without damaging the nanotube structure. Secondly, it was shown that an oxygen plasma creates nitrogen vacancies that then allow oxygen atoms to be successfully substituted onto the surface of BNNTs. The percentage of oxygen atoms can be controlled by changing the input plasma energy and by the Ar plasma pre-treatment time. Finally, it has been demonstrated that nitrogen functional groups can be introduced onto the surface of BNNTs using an N2 + H2 plasma. The N2 + H2 plasma also created nitrogen vacancies, some of which led to surface functionalization while some underwent oxygen healing.
History
Journal
NanotechnologyVolume
22Issue
24Pagination
1 - 7Publisher
Institute of Physics PublishingLocation
Bristol, U. K.Publisher DOI
ISSN
0957-4484eISSN
1361-6528Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2011, IOP PublishingUsage metrics
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