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Preparation and crystallization of nanosized amorphous nickel sulfide by using gamma-irradiation
其他题名γ辐照法制硫化镍纳米非晶及其晶化
Bian, GZ; Yin, YD; Fu, YL; Wu, ZH; Hu, TD; Liu, T; Wu ZH(吴忠华); Hu TD(胡天斗); Liu T(刘涛)
2000
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号16期号:1页码:#REF!
通讯作者Bian, GZ (reprint author), Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China.
摘要Nano-sized amorphous nickel sulfide has been prepared in a mixed aqueous solution of Na2S2O3 and Ni2SO4 compounds using gamma-irradiation at room temperature, The obtained precipitate after gamma-irradiation was washed and dried at 60 degrees C, It was then crystallized by calcination in a flow of argon at 160 - 500 degrees C, respectively, All these samples were characterized by X-ray diffraction and extended X-ray absorption fine structure (EXAFS) spectroscope. No peak is detected in the X-ray diffraction patterns of 60 degrees C dried and 160 degrees C calcined samples, it reveals that particles in these two samples are in amorphous states with high level of disorder, Several weak peaks are found in the pattern of 300 degrees C calcined sample and they become stronger in that of 400 degrees C and 500 degrees C calcined samples. All these peaks are due to NiS compound, EXAFS results demonstrate that the nickel sulfide particles in 60 degrees C dried sample are present in a tetrahetral structure with an average Ni - S coordination distance of 0.221nm and a Ni - S coordination number of 4.4, which are changed to octahedral structures with Ni - S coordination distances of about 0.238nm and Ni - S coordination numbers of near 6.0 after calcined at above 300 degrees C, Both the tetrahedral species and the octahedral species exist in 160 degrees C calcined sample.
文章类型Article
关键词gamma-irradiation nanosized amorphous nickel sulfide structure X-ray diffraction EXAFS
学科领域Chemistry
DOI10.3866/PKU.WHXB20000111
收录类别SCI
WOS类目Chemistry, Physical
WOS记录号WOS:000085061800011
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225791
专题多学科研究中心
推荐引用方式
GB/T 7714
Bian, GZ,Yin, YD,Fu, YL,et al. Preparation and crystallization of nanosized amorphous nickel sulfide by using gamma-irradiation[J]. ACTA PHYSICO-CHIMICA SINICA,2000,16(1):#REF!.
APA Bian, GZ.,Yin, YD.,Fu, YL.,Wu, ZH.,Hu, TD.,...&刘涛.(2000).Preparation and crystallization of nanosized amorphous nickel sulfide by using gamma-irradiation.ACTA PHYSICO-CHIMICA SINICA,16(1),#REF!.
MLA Bian, GZ,et al."Preparation and crystallization of nanosized amorphous nickel sulfide by using gamma-irradiation".ACTA PHYSICO-CHIMICA SINICA 16.1(2000):#REF!.
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