Carbon nitride nanotubes synthesized by high-frequency induction heating quickly and their field-emission properties

Carbon nitride nanotubes have been rapidly synthesized using high-frequency induction heating equipment in less than 3 minutes. The diameter of synthesized carbon nitride nanotubes is about 1.5–2nm. Both x-ray photoelectron spectra and EDX analysis give its formula of CN nanotube. The carbon nitride nanotubes grown under this condition have better field-emission characteristics with low turn-on and threshold fields of 1.1 and 3.8 V/μm, respectively. The reason could be that carbon nitride nanotubes synthesized by high-frequency inducting heating with high heating rate have more “bamboo-like” structure with many open ends and high purity.