Ni(OH)_2晶型构造控制研究  

Study on Control of Crystal Structure of Ni(OH)_2

作　　者：李启厚[1] 安然[1] 陈松[1] 刘志宏[1] 郭学益[1] 张多默 

机构地区：[1]中南工业大学有色金属冶金系,湖南长沙410083

出　　处：《中国粉体技术》2000年第3期6-9,共4页China Powder Science and Technology

基　　金：国家自然科学基金资助项目!(59774018)

摘　　要：采用氨络合沉淀法制备了Ni(OH) 2 微粒。基于Ni(OH) 2 的结构特征 ,考察了阴离子、氨浓度、反应陈化时间对Ni(OH) 2 的结构控制规律 ,并用负离子配位多面体生长基元理论对此进行解释 ,认为通过改变反应体系物理化学条件来改变有关生长基元及其维度。Ni(OH) 2 powder is prepared by virtue of the method of NH 3 coordination precipitation.Based on characters of Ni(OH) 2 structure,the effcts of anion、NH 3 amount and precipitation time on Ni(OH) 2 structure are investigated,which is explained with the theoretical model that the grow units are polyhedral structure of cordination anions.The results show that Ni(OH) 2 structure can be effctively controlled by grow unit and its dimension、cnnection patterns varying with change of physical and chemical conditions in aqueous solution.

关 键 词：氢氧化镍 结构控制 负离子配位多面体 生长基元 

分 类 号：TQ138.13[化学工程—无机化工]