Preparation of nanosized nickel powder by solution reduction

doi:10.11949/j.issn.0438-1157.20161073

Abstract

Abstract:

The preparation of nano nickel powder by solution reduction method in stirred reactor was proposed.The effects of different operating conditions including reactant concentration,reactant ratio,initiator concentration,sodium hydroxide concentration,reaction temperature,stirring speed on the characteristic of nano nickel powder were systematically investigated to obtain the optimal operating conditions.Nano nickel powder with a face centered cubic structure and an average particle size of 107 nm was obtained under the optimal operating conditions of a NiSO₄ concentration of 0.8 mol·L^-1,a reactant ratio(N₂H₄:NiSO₄) of 6:1,a initiator concentration of 0.01 mol·L^-1,sodium hydroxide concentration of 1 mol·L^-1,a reaction temperature of 80℃,a stirring speed of 2400 r·min^-1.

Key words: solution reduction method, nano nickel powder, NaBH₄, N₂H₄, nanoparticles, nanotechnology, synthesis

摘要：

采用液相还原法在搅拌反应器内进行了纳米镍粉的制备研究。系统考察了反应物浓度、反应物配比（N₂H₄：NiSO₄）、引发剂浓度、氢氧化钠浓度、反应温度、搅拌速度等操作条件对镍粉物性的影响规律，获得了较优操作条件：NiSO₄为0.8 mol·L^-1，反应物配比为6：1，NaBH₄浓度为0.01 mol·L^-1，NaOH浓度为1 mol·L^-1，反应温度80℃，搅拌速度为2400 r·min^-1，在较优条件下制备出常温下稳定性良好、平均粒径107 nm的面心立方结构的纳米镍粉。

关键词: 液相还原法, 纳米镍粉, NaBH₄, N₂H₄, 纳米粒子, 纳米技术, 合成

CLC Number:

TB031

YANG Yong, DONG Kun, SHAO Lei, CHU Guangwen, SUN Baochang, ZOU Haikui. Preparation of nanosized nickel powder by solution reduction[J]. CIESC Journal, 2016, 67(S2): 386-393.

杨勇, 董坤, 邵磊, 初广文, 孙宝昌, 邹海魁. 液相还原法制备纳米镍粉[J]. 化工学报, 2016, 67(S2): 386-393.

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