Preparation of Cu nanoparticles with NaBH4 by aqueous reduction method
Preparation of Cu nanoparticles with NaBH4 by aqueous reduction method
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DOI：
10.1016/s1003-6326(11)61149-7
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发表时间：
2012-01-01
影响因子：
4.5
通讯作者：
Okido, Masazumi
中科院分区：
文献类型：
--
作者：
Liu Qing-ming;Zhou De-bi;Okido, Masazumi
用NaBH4在碱性溶液中还原Cu2+，制备了Cu纳米颗粒。研究了NaBH4浓度和滴速对Cu纳米颗粒形成的影响。最佳工艺条件为0.2 mol/L Cu2+, pH=12，温度为313 K，明胶为1%分散剂，加入0.4 mol/L NaBH4，滴注速度为50 mL/min。NH3中心点H2O是形成Cu前驱体的最佳络合剂。通过一系列实验研究了不同时间点的反应过程。
Cu nanoparticles were prepared by reducing Cu2+ ions with NaBH4 in alkaline solution. The effects of NaBH4 concentration and dripping rate on the formation of Cu nanoparticles were studied. The optimum conditions are found to be 0.2 mol/L Cu2+, solution with pH=12, temperature of 313 K and 1% gelatin as dispersant, to which 0.4 mol/L NaBH4 is added at a dripping rate of 50 mL/min. NH3 center dot H2O is found to be the optimal complexant to form the Cu precursor. A series experiments were conducted to study the reaction process at different time points.