摘要
作者通过在MnSO_4-H_2SO_4电解液体系中,分别添加适量的三种不同钛化合物作添加剂,制备了掺钛(Ⅳ)电解二氧化锰(EMD-Ti),并测试了它们的部分理化特性。实验室碱性介质放电结果表明,EMD-Ti样品的放电容量有较大的提高。通过XRD分析发现,EMD-Ti样品的晶型仍属于γ型,但其晶格受到扭曲,b/a值增大,c/b值减小。XPS分析证明EMD-Ti样品中的钛以Ti(Ⅳ)离子形式存在。
In this paper, the doped titanium(Ⅳ)electrolytic manganese dioxide samples are obtained by electrolyzing MnSO_4-H_2SO_4 solutions with three titanium compounds as additives, and then the physico-chemicai properties of these samples are determined. The results of laboratory cell discharging in alkaline solution show that discharge capacity of EMD-Ti samples is greatly improved. Examined by XRD, we find that EMD-Ti samples still belong to γ variety, but the original EMD lattice is twisted. The value of b/a is increased and that of c/b decreased. XPS analysis shows that titanium eXists in the EMD-Ti samples being in Ti(Ⅳ)state.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
1990年第3期59-67,共9页
Journal of Fujian Normal University：Natural Science Edition
基金
国家自然科学基金
关键词
电解
二氧化锰
掺钛
制备
理化性能
doped titanium(Ⅳ) electrolytic manganese dioxide, electrolytic manganese dioxide, alkaline dry cell, cathodic materials in dry cell
