Preparation of Nanoscale CuO Powders
Cu(OH)2 precursor was synthesized by direct precipitation method and CuSO4 and NaOH were used as raw materials.Then,Cu(OH)2 precursor was calcined in muffle furnace at 400 ℃ for 2h in order that CuO particle was obtained.Through the analysis of the factors affecting the CuO,the paper determined the optimum conditions for the synthesis of nano-CuO with the direct-precipitation method.Then the paper analyzed phase composition and crystal structure of samples using XRD and calculated the average grain size of samples by Scherrer formula,and observed and analyzed by TEM to characterize the morphology and particle size of samples.The optimum precipitation conditions are as follows: when the precipitation agent is 3.2:1,reaction time 40min and precipitant concentration 0.6mol.L-1.The average size of CuO particle prepared under the conditions is 18nm and the yield is 96％.
nano-CuO direct precipitation method copper yield particle size
ZHAO Xihua XU Min
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education,Northeast Forestry University,Harbin 150040,P.R.China
国际会议
哈尔滨
英文
1770-1773
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）