铝掺杂对草酸钴结构和形貌的影响

来源期刊：中南大学学报(自然科学版)1997年第3期

论文作者：赵秦生 李维

文章页码：229 - 231

关键词：铝掺杂； 草酸钴； 结构； 形貌

Key words：Al--doping； cobalt oxalate； structure； morphology

摘    要：研究了铝的不同掺杂工艺和掺杂量对草 酸钴结构和形貌的影响．通过工艺1可让纳米级铝化合物基本分布在草酸钴晶粒外面，而应用工艺2则让铝进入草酸钴晶格中．用费氏粒度仪测量样品的粒度；X射 线衍射仪测晶型结构；扫描电镜观察形貌．结果表明，使用工艺1不会改变草酸钴的结构而应用工艺2只需掺入少量铝即可使草酸钴由α-晶型转变为β-晶型．随 着草酸钴中铝掺杂量的增加，掺杂草酸钴的粒度增大，而草酸钴的外形轮廓不发生明显改变．

Abstract: The influences of different doping processes (process 1 and 2) and doping quantites of aluminium on structure and morphology of cobalt oxalate were studied. Most Al can be kept out of or inside cobalt oxalate grains using processes 1 and 2 respectively. Grain size of the specimens was measured by Fisher size meter,and the structure by X--ray diffraction. The morphology was taken by SEM. The results show that the structure of cobalt oxalate would not be changed in process 1,but a transformation of cobalt oxalate from α-type into β-type would occur when adding a small amount of Al in process 2. The particle sizes of Al--doped cobalt oxalate increase with the increase of doping quantities,whereas the outline of cobalt oxalate particles does not change distinctly.