核壳型钴碳纳米颗粒的微波法制备

Preparation of Core-shell Carbon/Cobalt Nanoparticles by Microwave Method

以硝酸钴为钴源,葡萄糖为碳源,乙二醇做溶剂,水合肼做还原剂,使用微波加热的方法两步合成核壳结构的纳米颗粒。用X-射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对产物进行表征。结果表明:产物为核壳结构的球形碳包钴纳米颗粒,尺寸分布在300-500 nm,晶化程度较高。

Corc -shell nanometer materials were synthesized via microwave heating two -step synthesis method with nitric acid cobalt for cobalt source, glucose for carbon sources, glycol for solvent and hydrazine hydrate for rcductant. The morphologies and structures of the products were characterized by X- ray diffraction （XRD）, scanning electron microscopy （SEM） and trans- mission electron microscopy （TEM）. The results show that the product is the core - shell structure of spherical cobalt in carbon nanoparticles, size distribution in the 300 -500 nm, the obtained samples have a high crystallization degree.