Preparation of nickel ultrafine powder and crystalline film by chemical control reduction

被引：108

作者：

Li, YD ^{[1
]}

Li, CW ^{[1
]}

Wang, HR ^{[1
]}

Li, LQ ^{[1
]}

Qian, YT ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Anhua 230026, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1999年 / 59卷 / 01期

基金：

中国国家自然科学基金;

关键词：

chemical synthesis; nickel polycrystalline film; nickel ultrafine powder;

D O I：

10.1016/S0254-0584(99)00015-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nickel ultrafine powder and crystalline film have been prepared by chemical reduction of aqueous NiSO4 with hydrazine at different conditions. Experiments showed that pH and temperature are the main factors to influence the reaction. When pH > 10.0 and temperature is higher than 85 degrees C, formation of nickel powder is favoured. The introduction of nucleator AgNO3 can increase the reaction rate. Crystalline nickel film can be obtained when a moderate amount of surfactant sodium dodecyl sulfate (SDS) exists in the solution. Also the surfactant can influence the size and agglomeration of ultrafine powders. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：88 / 90

页数：3

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