有机溶胶法制备超细钴纳米粒子的研究

材料导报, 2010, 24(16): 127-129.

1.惠州学院化学工程系,惠州,516007

2.惠州学院化学工程系,惠州,516007

3.华南理工大学化学与化工学院,广州,510641

基金项目: 广东省高等学校人才引进项目(A309.0210) 国家自然科学基金(20673040) 惠州学院博士科研启动基金(C5090204) 惠州学院应用型人才培养示范专业项目(SF09003)

Preparation of Ultrafine Co Nanoparticles by Organic Colloidal Method

以乙二醇为溶剂、柠檬酸钠为络合剂、甲酸钠为还原剂,采用有机溶胶法制备得到粒径为2nm的单分散超细钴纳米粒子.XRD分析表明,所得钴纳米粒子为六方密堆积(hcp)晶型,XPS结果显示,钴纳米粒子表面没有被氧化.研究发现,使用温和的还原剂甲酸钠和较高黏度的溶剂乙二醇有助于得到超细钴纳米粒子.

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