Synthesis and formation mechanism of BN nanotubes catalyzed by Mg through ball milling and annealing process

In order to improve the yield of BN nanotubes prepared by ball milling annealing method, a small amount magnesium was used as catalyst synthesized boron nitride nanotubes. The results showed that with high yield, purity and uniform size were synthesized. morphology BNNTs is bamboo-like cylinder-shaped. diameter them about 50 150 nm most are 100nm. length dozens microns. existence end particles indicates growth mechanism can be attributed gas-liquid-solid model. catalyzed preparation has stable process, purity, which expected good method for large-scale