Inorganic Chemicals Industry ›› 2022, Vol. 54 ›› Issue (4): 119-122.doi: 10.19964/j.issn.1006-4990.2021-0392

• Research & Development • Previous Articles     Next Articles

Study on preparation of high purity micron nickel oxide powder by roasting carbonyl nickel powder

DING Yong1,2(),FENG Xiaorui1,2(),LU Xiangjie1,2,GAO Xiaoqin1,2,FENG Yan1,2,HE Yan1,2   

  1. 1. National Nickel and Cobalt Advanced Material Engineering Research Center,Lanzhou 730101,China
    2. Lanzhou Jinchuan Technology Park Co.,Ltd.
  • Received:2021-06-28 Online:2022-04-10 Published:2022-04-18
  • Contact: FENG Xiaorui E-mail:44309853@qq.com;405416340@qq.com

Abstract:

Nickel oxide was prepared from carbonyl nickel powder by roasting,and micron powders were obtained after ball milling.The thermogravimetry-differential scanning calorimeter(TG-DSC) was used to study the thermal behavior of carbonyl nickel powder in air atmosphere.Laser particle size analyzer,plasma spectrometer,X-ray diffraction analysis(XRD) and scanning electron microscopy(SEM) were used to analyze structure,composition and morphology of the prepared samples.The results showed that the effect of compressed air and compressed oxygen atmosphere on product purity was not obvious.Under the two carrier gas conditions,the carbonyl nickel powder could be directly roasted to prepare face-centered cubic nickel oxide with 100% purity and high crystallinity by optimizing the roasting temperature and roasting time(roasting temperature 700 ℃,roasting time 2 h,carrier gas flow 1.5 L/min).After ball milling,spherical microns nickel oxide powder with particle size of 4~19 μm was obtained.The preparation process had the characteristics of simple technology and environmentally friendly.

Key words: carbonyl nicke, roasting method, nickel oxide powder

CLC Number: