球形单分散Cu2O纳米粉体的制备
Synthesis of Spherical and Monodispersed Cu2O Nanometer Powders

作者: 朱归胜 * , 颜东亮 , 杨会娟 , 赵昀云 , 高康 :广西信息材料重点实验室,桂林电子科技大学;

关键词: 氧化亚铜(Cu2O)单分散纳米粉体Cuprous Oxide (Cu2O) Monodispersed Nanopowders

摘要:
硫酸铜和适量氨水反应形成铜氨络合物并加入葡萄糖溶液,最后加入NaOH溶液,制备了平均粒径为200 nm,比表面积为5.1 m2/g的球形氧化亚铜粉体,由SEM、激光粒度测试仪和BET三种方法分析得到的粉末平均粒径相吻合,证明制备得到的粉末是单分散状态的。XRD显示产物为立方相的氧化亚铜,未出现金属铜的衍射峰。实验发现,产物粒径随氨水用量和硫酸铜初始反应浓度的增加而减小,葡萄糖用量和反应温度对产物粒径和均匀性也有着重要影响。

Abstract:
Spherical and monodispersed cuprous oxide (CuO2) powder with 200 nm particle size and 5.1 m2/g special surface area were prepared by reacting CuSO4•5H2O with appropriate amount of NH3∙H2O, glucose and NaOH. Characterizations of X-ray diffraction, laser particle size analysis, scanning electron microscopy and Brunauer-Emmett- Teller analysis confirmed that the as-prepared powder is monodispersed. It has been found increasing the NH3∙H2O concentration (from 0 to 4.0 mol/l) and the initial CuSO4•5H2O concentration (from 0.5 mol/l to 1.5 mol/l) is propitious to preparation of monodispersed CuO2 powders with small particle size. Additionally, reaction temperature and dosage of glucose affect the powder particle size and dispersion behavior.

文章引用: 朱归胜 , 颜东亮 , 杨会娟 , 赵昀云 , 高康 (2012) 球形单分散Cu2O纳米粉体的制备。 纳米技术, 2, 27-31. doi: 10.12677/nat.2012.22006

参考文献

[1] S. Kakuta, T. K. Abe. Photocatalytic activity of Cu2O nanoparticles prepared through novel synthesis method of precursor reduction in the presence of thiosulfate. Solid State Science, 2009, 11(8): 1465-1469.

[2] K. Akimoto, S. Ishizuka, M. Yanagita, et al. Thin film deposition of Cu2O and application for solar cells. Solar Energy, 2006, 80 (6): 715-722.

[3] C. Wang, H. Daimon, Y. Lee, et al. Synthesis of monodisperse Pt nanocubes and their enhanced catalysis for oxygen reduction. Journal of American Chemical Society, 2007, 129(22): 6974- 69751.

[4] 朱红飞, 陈乾旺等. 在酸性条件下合成氧化亚铜纳米立方体[J]. 无机化学学报, 2004, 120(10): 1172-1176.

[5] 陈之战, 施而畏等. 水热条件下Cu2O的连生习性[J]. 人工晶体学报, 2001, 30(4): 369-374.

[6] X. J. Zhang, Z. L. Cui. One-pot growth of Cu2O concave octa- hedron microcrystal in alkaline solution. Materials Science En- geneering B, 2009, 162(2): 82-86.

[7] Z. H. Liang, Y. J. Zhu. Synthesis of uniformly sized Cu2O crys- tals with star-like and flower-like morphologies. Materials Let- ters, 2005, 59(19/20): 2423-2425.

[8] J. S. Xu, D. F. Xue. Five branching growth patterns in the cubic crystal system: A direct observation of cuprous oxide microcrystals. Acta Materialia, 2007, 55(7): 2397-2406.

[9] 王岳俊, 周康根, 蒋志刚. 葡萄糖还原氢氧化铜制备球形氧化亚铜及其粒度控制研究[J]. 无机化学学报, 2011, 27(12): 2405-2412.

[10] 蒋志刚, 王岳俊, 周康根. 以氢氧化铜为前躯体制备单分散球形氧化亚铜粉末[J]. 材料开发与应用, 2010, 25(3): 17-21.

分享
Top