Preparation And Properties Of The Hollow Structure Of Metal Particles

In this work, the hollow particles were firstly prepared by calcination of polymers. Then, a novel synthetic route, namely Hydroxide Template Method, is proposed and hollow structural nanoparticles (such as co-B, Ni-P, etc.) with good dispersiblity and low particle size distribution were fabricated. The effects of reaction parameters, such as the initial concentration of metal precursors, the ratio of salt and alkali, the stabilizer, the amount of reducing agent and complexing agent were investigated. Some measurements, such as XRD, TEM and SEM, were employed to study the structure and morphology of as-obtained samples, which exhibit as spherical and pseudo-spherical shapes with uniform particle sizes.The hollow particles/AP composite was obtained by mechanical grinding, with the catalytic properties investigated by Differential Thermal Analysis (DTA). The as-synthesized co-B and Ni-P hollow particles show excellent catalytic behaviors for the decomposition of AP; high temperature peak was advanced and the apparent heat increased significantly. Moreover, the possible catalytic mechanism was discussed.