氢氧化镍纳米晶的水热合成和结构表征

被引：10

作者：

王文帝

刘金华

王大志

陈春华

机构：

[1] 中国科技大学材料科学与工程系

来源：

过程工程学报 | 2006年 / 01期

关键词：

氢氧化镍; 形貌; 水热法; 纳米晶;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

用水热法在180℃合成了非球形的Ni(OH)2纳米晶,并用X射线衍射(XRD)、傅立叶变换红外光谱(FT?IR)、透射电镜(TEM)和高分辨透射电镜(HRTEM)等技术对其形貌和结构作了表征.结果表明,Ni(OH)2纳米晶的生长习性和形貌都强烈依赖于前驱物溶液的pH值.在较高的pH值(13.40)下,产物主要是六角片状粒子,而在近中性条件(7.80)下,产物主要是不规则形貌的粒子.在pH值较高的条件下,除了通常的Ostwaldripening晶体生长粗化机理外,合并生长机理对纳米晶生长过程也发挥了作用.

引用

页码：128 / 131

页数：4

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