碳包覆镍/钴纳米颗粒的爆轰合成法

用掺杂一定比例的硝酸镍盐/硝酸钴盐、尿素、无水乙醇与猛炸药泰安制成水溶性炸药,在密闭容 器氮气保护下,爆轰合成碳包覆镍/钴纳米晶颗粒。采用X射线衍射(XRD)、透射电镜(TEM)和Raman光谱 仪等对爆轰产物的形态结构和组成成分进行测试。实验结果表明,爆轰产物以金属纳米晶为核,周围包覆多 种形态的碳物质且形成包覆结构特征比较完整的碳包覆镍/钴纳米颗粒,包覆层主要由无定形碳、石墨和微量 的富勒烯构成。

Detonation synthesis of carbon-encapsulated nickel/cobalt nanoparticles

The explosive pentaerythritol tetranitrate(PETN) was proportionally mixed with nickel/cobalt nitrate,carbamide,and absolute ethyl alcohol to obtain watersoluble explosives.The obtained watersoluble explosives were ignited by the detonators under nitrogen protection in explosion vessels to synthesize carbon-encapsulated nickel/cobalt particles.The shape,composition and structure of the detonation products were characterized by TEM,X-ray diffraction(XRD) and Raman spectroscopy.And the formation mechanism of t...