Doping nanotube

A. L. Elias, J. C. Carrero-Sanchez, H. Terrones, M. Endo, J. P. Laclette, M Terrones, Viability studies of pure carbon- and nitrogen-doped nanotubes with Entamoeba histolytica From amoebicidal to biocompatible structures, Small, vol. 3, pp. 1723-1729, 2007. 

KEYWORDS carbon nanotubes doped nanotubes double-walled nanotubes Raman spectroscopy transmission electron microscopy... 

In conclusion, the Mo0, Fe09Mg130 catalyst prepared by the combustion route preferentially yields DWNTs, the proportion of SWNTs being very small or negligible. The use of this catalyst has enabled the synthesis of 1 atom % N- and B-doped DWNTs. The diameters of the nanotubes obtained from the Raman RBM modes and transmission electron microscopy are comparable. The N-doped nanotubes show the G-band in the Raman spectrum at a lower frequency than the undoped ones, while the B-doped nanotubes show an increase in the frequency. The proportion of the metallic nanotubes appears to decrease on N- or 8-doping, but the average diameter is substantially larger in the B-doped DWNTs. 

Developed Dopant Encapsulation, a novel method for producing metal doped carbon nanotubes with controlled size and structures (patent is applied for), which allows gram quantities of doped nanotubes with high purity to be produced... 

Fig. 29. a LDOS of carbon nanotubes and boron-doped carbon nanotubes [177]. It is interesting to note the intrinsic metallic behaviour of the doped tubes. A possible explanation is based upon the existence of BC3 islands within the carbon hexagonal network (courtesy of P.M. Ajayan). b Microwave conductivity measurements of B-doped nanotubes obtained by arcing a mixture of h-BN and graphite in an He atmosphere exhibiting the unusual metallic behaviour [19]... 

Zhou G, Duan W, Field emission in doped nanotubes. Journal of Nanoscience and Nanotechnology, 2005. 5(9) 1421-1434. 

Thermocells (see Chap. 2 and Fig. 3.4) are the primary means to convert chemical into electric energy. The principle was demonstrated in [173], where electrodes of doped nanotubes in cmitact with aqueous ferri/ferrocyanide solution are used to obtain a utilisable cell voltage by imposing a temperature difference between both equal electrodes. Instead of classic solvents, in [174] a eutectic melt... 

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