无机化学学报

混合溶剂前体法制备纳米CuO粉体及其性能表征

Study on the Nano-CuO Powder Made from the Precursor Synthesized by the Precipitation Method in Mixed Solvent

作者	单位
李东升	陕西省物理无机化学重点实验室，西北大学化学系，西安 710069 陕西省化学反应工程重点实验室，延安大学化学化工学院，延安 716000
王文亮	陕西师范大学化学与材料科学学院，西安 710062
王尧宇	陕西省物理无机化学重点实验室，西北大学化学系，西安 710069
王继武	陕西省化学反应工程重点实验室，延安大学化学化工学院，延安 716000
史启祯	陕西省物理无机化学重点实验室，西北大学化学系，西安 710069

摘要:

关键词: 纳米CuO 沉淀法 Cu₂(OH)₂CO₃前驱体混合溶剂红外特性

基金项目:

Abstract: Nano-CuO was prepared by heating nano-Cu₂(OH)₂CO₃ precursors in different calcination temperatures. The precursor was synthesized from water-alcohol mixed solution of Cu(Ac)₂ using mixed solution of NaOH and Na₂CO₃as precipitants. XRD, FT-IR, TEM, TG-DTA and surface area measurement techniques were used to investigate the properties of the CuO powder. The results show that the spherical, well dispersed nano-CuO powder with the average size of 15 nm and higher catalytic activity for H₂O₂ decomposition was obtained at 300 ℃. With the increasing of calcination temperature, crystal of CuO grows up, agglomeration of the powder becomes heavier and catalytic activity decreases. FT-IR patterns revealed that the vibration fine structure of Cu-O bond in nano-CuO powder disappears and main absorption is red-shifted with the average size of nano-CuO reducing.

Keywords: nano-CuO precipitation method Cu₂(OH)₂CO₃precursor mixed solvent infrared behavior

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李东升,王文亮,王尧宇,王继武,史启祯.混合溶剂前体法制备纳米CuO粉体及其性能表征[J].无机化学学报,2004,20(5):617-620.

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