Nanocrystalline alpha-Ni(OH)2 prepared by ultrasonic precipitation.
Nanocrystalline alpha-Ni(OH)2 was prepared by an ultrasonic precipitation/stirring method. Results of X-ray diffraction, transmission electron microscopy, infrared, and thermogravimetric measurements confirm that the sample obtained is alpha phase. Compared with the sample prepared without ultrasonic stirring, the crystal structure of the alpha phase sample has been changed from beta phase. The crystalline size of the sample is about 20 nm, which is smaller than the sample produced without ultrasonic stirring (70 nm).
Xia
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Institute of Applied Chemistry, Xinjiang University, Urumqi, People's Republic of China.
Shen
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LL
Guo
Z P
ZP
Liu
H K
HK
Walter
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G
D011232:Chemical Precipitation; D003460:Crystallization / Q000379:methods*; D011211:Electric Power Supplies; D004735:Energy Transfer; D006358:Hot Temperature; D006878:Hydroxides / Q000138:chemical synthesis* / Q000737:chemistry; D008422:Materials Testing; D008854:Microscopy, Electron; D008968:Molecular Conformation; D036103:Nanotechnology; D009532:Nickel / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014465:Ultrasonics; D014961:X-Ray Diffraction
D006878:Hydroxides; C037473:nickel hydroxide; D009532:Nickel