Lithium-doped endohedral single-walled carbon nanotubes can arise during tube growth

•Li@SWCNT bundles were obtained using an arc-reactor.•Oxygen appears as important element in Li doping during SWCNT growth.•Li@SWCNT is stable in water. This Letter shows that it is possible to dope single-walled carbon nanotubes (SWCNT) with lithium during SWCNT growth in an arc reactor. Depending...

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Bibliographic Details
Published in:Chemical physics letters 2013-12, Vol.590, p.175-179
Main Authors: Matsubara, E.Y., Luengo, C.A., Rosolen, J.M.
Format: Article
Language:English
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Summary:•Li@SWCNT bundles were obtained using an arc-reactor.•Oxygen appears as important element in Li doping during SWCNT growth.•Li@SWCNT is stable in water. This Letter shows that it is possible to dope single-walled carbon nanotubes (SWCNT) with lithium during SWCNT growth in an arc reactor. Depending on the oxygen and lithium concentrations in the reactor, one can obtain endohedral Li@SWCNT after rinsing the product in water. Oxygen plays a decisive role in Li insertion during SWCNT growth and in the diameter distribution of the samples. Doping the tubes with Li produces end-closed SWCNT bundles that afford more stable dispersion in water as compared with non-doped tubes.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2013.10.077