Ag(Ⅰ)电解催化Mn(Ⅱ)制备MnO_2的研究——Ⅳ产品MnO_2的可充电性  

Studies on the Preparation of MnO_2 by Catalysis of Mn(Ⅱ) Anodic Oxidation by Silver (Ⅰ)——Ⅳ. The Rechargeability of Product MnO_2

作　　者：李伟善[1] 江琳才[1] 

机构地区：[1]华南师范大学化学系

出　　处：《电池》1990年第4期25-29,共5页Battery Bimonthly

摘　　要：本文讨论了水分子对二氧化锰可充电性的影响。用循环伏安法对电催化二氧化锰——用Ag(Ⅰ)电解催化Mn(Ⅱ)阳极氧化制备出的二氧化锰产品,进行了可充电性研究。结果表明,高结晶水的电催化二氧化锰比传统的电解二氧化锰具有较好的可充电性,电解二氧化锰电极经过五次循环伏安充放电后,其再放电的容量低于二氧化锰二电子理论放电容量的百分之二十,而电催化二氧化锰电极经过二十次循环伏安充放电后,其放电容量仍不低于百分之五十。此外,电催化二氧化锰还具有银掺杂特性。The effect of water on the discharge process of MnO2 was discussed The rechargeabil ity of the product MnO2 prepared by catalysis of Mn (Ⅱ) anodic oxidation by silver (Ⅰ) was studied by use of volta-metry method. The results show that the rechargeability of ECMD is good and much better than that of EMD.The discharge capacity of EMD is lower than 20% of MnO2 theoretical two-electron capacity after 5 cycles while that ECMD is higher than 50% of the theoretical two-electron capacity after 20 cycles. The result...

关 键 词：银离子电解催化 二价锰阳极氧化 活性二氧化锰 可充电性 

分 类 号：TM91[电气工程—电力电子与电力传动]