TRANSMISSION MOSSBAUER AND FTIR SPECTROSCOPIC STUDIES OF BINARY NICKEL(II)-IRON(III) HYDROXIDE SYSTEMS

被引:10
作者
KAMNEV, AA
RISTIC, M
ANGELOV, V
机构
[1] RUDJER BOSKOVIC INST,ZAGREB 41001,CROATIA
[2] UNIV SOFIA,DEPT ATOM PHYS,BU-1126 SOFIA,BULGARIA
关键词
D O I
10.1016/0022-2860(95)08713-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Transmission Mossbauer and Fourier transform infrared spectroscopic data obtained for binary nickel(II)-iron(III) hydroxide systems in a broad range of compositions (3 to 60 at. % Fe/(Ni+Fe)) are compared. Structural transformations of the samples and their surface layers are considered, depending on their bulk gross compositions. The formation of a nickel ferrite precursor is shown to be promoted in the crystallites surface layers even at much lower gross Fe-to-Ni ratios than that in NiFe2O4 owing to surface enrichment with iron, as confirmed by Auger electron spectroscopic analyses.
引用
收藏
页码:77 / 80
页数:4
相关论文
共 13 条
  • [11] Nakamoto K., Infrared and Raman Spectra of Inorganic and Coordination Compounds, (1978)
  • [12] Harrison J.B., Berkheiser V.E., Clays & Clay Minerals, 30, (1982)
  • [13] Music S., Popovic S., Dalipi S., Formation of oxide phases in the system Fe2O3-NiO, Journal of Materials Science, 28, (1993)