摘要
利用自行研制的约束弧等离子体纳米粉体实验装置成功制备了平均晶粒尺寸为22 nm的NiO纳米粉体。通过X射线衍射(XRD)、透射电子显微镜(TEM)、选区电子衍射(SAED)和红外光谱(IR)等测试手段对样品的晶体结构、晶粒尺寸以及形貌进行了表征;并利用BET氮吸附法测定样品的比表面积。结果表明:约束弧等离子体方法制备的NiO纳米粉体结晶良好、粒度均匀、分散性好,部分颗粒呈现规则菱形十二面体几何外型,比表面积为33.9 m^2/g。
NiO nanopowders with average grain size of 22nm were prepared by confined arc plasma method and the manufacturing facility are developed by the authors. The samples were characterized by X-ray diffraction（XRD）,Transmission Electron Microscope（TEM）, Selected -area Electron Diffraction（SAED）, Infi-ared Absorption Spectrum（IR） and BET adsorption to determine the morphology, crystal structure, the specific surface area and the particle size. The results show that the samples are epigranular and fine-dispersity. Some of nanopowders are granatohedron shape. And their specific surface area is 33.9 m^2/g.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A03期484-487,共4页
Rare Metal Materials and Engineering
基金
甘肃省科技攻关基金(502-041211)
