碱液中改性二氧化锰的可逆性

Reversibility of Modified Manganese Dioxide in Alkaline solution

本文利用动电位扫描法,在9MKOH溶液中测定了TiO_2、Na_2S、Co(OH)_2和La_20_3等添加剂对MnO_2电极行为的影响。实验结果表明TiO_2和Na_2S的加入可以提高MnO_2电极的充放寿命;Co(OH)_2和La_2O_3的添加有利于改善MnO_2电极的可逆性。同时,它们的加入均使电极充放电容量大大提高。

The effects of the additives such as TiO2, Na2S. Co (OH)2 and La2O3 on the behavior of manganese dioxide electrode in 9M KOH solution were measured by the means of potentiodynamic sweep. The experimental results showed that TiO2 and Na2S could prolong the charge and discharge cycles and Co(OH)2 and La2O3 could improve the reversibility of manganese dioxide electrode. All these additives could greatly increase the charge and discharge capacity of manganese dioxide electrode.