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《Henan Chemical Industry》 2012-13
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Study on Preparation of Copper Oxide Nanopowders

LI Qun1,WANG Bao-he1,XIA Liang-zhi2,YU Cai-yuan1(1.School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;2.School of Chemical Machinery,Dalian University of Technology,Dalian 116024,China)  
Using Cu(NO3)2 3H2O as reactants,ammonia as complex agent,sodium hydroxide as precipitator,and polyethylene glycol as dispersant,ethanol and distilled water as solvent,copper oxide single crystal nanopowders which have average diameter about 20 nm are prepared by complex precipitation method.Mono-factor experiments and multifactor orthogonal experiments are adopted to explore the influences of these factors,such as,the initial concentration of Cu(NO3)2,reaction temperature,molar ratio of sodium hydroxide and copper ion etc.on diameter of copper oxide nanopowders.And transmission electron microscope(TEM) and fourier transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD) are used to characterize and analyze the morphology,structure and property of products prepared.The experiment result shows that the diameter of copper oxide nanopowders is mostly influenced by reaction temperature,concentration of copper nitrate,ratio of sodium hydroxide and copper ion.The optimum conditions preparing copper oxide nanopowders are as follows: reaction temperature 70 ℃,concentration of copper nitrate 0.3 mol/L,molar ratio of sodium hydroxide and copper nitrate 3∶1,molar ratio of ammonia and copper ion 5∶1.FT-IR absorption spectrum declares that copper oxide nanopowders are characterized by both red and blue shift anomaly.
【CateGory Index】: TB383.1
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