Preparation and Characterization of Nanocrystalline NiO in Mixed Solvent
LI Ya-Dong; LI Cheng-Wei; ZHENG Hua-Gui; LI Long-Quan;DUAN Xiang-Feng; QIAN Yi-Tai(Department of Chemistry, Structure Research Laborxitory,University of Science and Technology of China, Hefei, 230026)
NiO nanocrystalline materials were prepared by decomposing a deep green non-crystal precursor at 4OO℃. The precursor was obtained in alcohol-water mixed solvent bythe reaction of Ni(NO3)2 and NH4HCO3. XRD, TG, DTA and TEM were used to character-ize the nanometer NiO and its precursor. The result show that the NiO fine particles arenon-agglomerated, spherical and well dispersed with the average size of 7 nm. The problemof agglomeration in c0nventional solution method is Overcomed by this convenient method.