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Controlled surface modification of boron nitride nanotubes

journal contribution
posted on 01.01.2011, 00:00 authored by Xiujuan Dai, Ying (Ian) ChenYing (Ian) Chen, Frank ChenFrank Chen, Peter LambPeter Lamb, Luhua LiLuhua Li, J du Plessis, D McCulloch, Xungai WangXungai Wang
Controlled 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

Nanotechnology

Volume

22

Issue

24

Pagination

1 - 7

Publisher

Institute of Physics Publishing

Location

Bristol, U. K.

ISSN

0957-4484

eISSN

1361-6528

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2011, IOP Publishing