节点文献
插层化合物LixVO2的实验研究
Preparation and Preliminary Experimental Studies of Intercalation Compound LixVO2
【摘要】 插层化合物LixVO2(0<x<1)是用化学方法从LiVO2中引出不同数量的Li之后得到的。用原子吸收光谱方法和电位分析法对Li和V的含量以及V的氧化价态做了定量分析。LixVO2的x射线衍射谱线表明,在x值为0.65附近发生了相变。随着Li的引出,晶格常数a和c发生了变化。LixVO2的直流电阻率随着x值减少而减少。另外,用LixVO2作阴极组装成二极电池,并对电池进行了初步实验。
【Abstract】 LixVO2 are prepared by chemical method based on LiVO2. X-ray powderdiffraction and quantitative element analysis are studied. The content ofLi is determined by atomic absorption spectrometry and the oxidation stateof Vanadium is determined by chemical analysis using Ce(Ⅳ) as oxidant.The results of X-ray diffraction show that LixVO2 is a single-phase compo-und when 0.7<x<1, LixVO2 is two-phase compound when 0<x<0. 65. Elect-rical resistivity of LixVO2 is reduced with decreasing value of x in LixVO2The preliminary test of the experiment cell by using LixVO2 as positiveelectrode is made.
【Key words】 intercalation; phase change; potential analysis; X-ray powder diffraction;
- 【文献出处】 北京师范学院学报(自然科学版) , 编辑部邮箱 ,1991年03期
- 【分类号】TM912.9
- 【下载频次】43