BCN nanotube


BCN nanotubes are tubular structures with a sub-micrometer diameter and a length much longer than diameter. They are composed of comparable amounts of boron, carbon and nitrogen atoms.
First made in 1994, synthesis methods have included: arc-discharge, laser ablation, chemical vapor deposition, template route, and pyrolysis techniques. Single-walled B–C–N nanotubes have been made with a hot-filament method.

Solvothermal synthesis

Vertically aligned arrays of ~BC2N nanotubes can be produced by solvothermal synthesis in a stainless steel autoclave from a mixture of sodium azide, ammonium fluoroborate and methyl cyanide. The mixture, together with the solvent and other additives is heated to 400 °C for ~14 h. The final composition was approx B19C55N26.

Potential applications

The vertically-aligned BCN nanotubes exhibit a high and stable specific capacitance, which exceeds that of alternative carbon nanomaterials, and therefore have potential applications in supercapacitors.

Facile synthesis

Another method produced nanotubes of composition : B45%,C31%,N24%
The method was grow them on stainless steel by reacting boron, zinc oxide, and ethanol in nitrogen and hydrogen at 1150 °C. The resulting nanotubes had an average diameter of about 90 nm.