中华医学超声杂志

应用化学 ›› 1989, Vol. 0 ›› Issue (6): 86-88.

• 研究简报 • 上一篇    下一篇

电催化间接氧化法制备活性二氧化锰

李伟善, 江琳才   

  1. 华南师范大学化学系 广州
  • 收稿日期:1988-12-10 修回日期:1989-06-20 出版日期:1989-12-10 发布日期:1989-12-10
  • 基金资助:
    国家自然科学基金

PREPARATION OF ACTIVATED MANGANESE DIOXIDE BY INDIRECT ELECTROCATALYTIC OXIDATION

Li Weishan, Jiang Lincai   

  1. Department of Chemistry, South China Normal University, Guangzhou
  • Received:1988-12-10 Revised:1989-06-20 Published:1989-12-10 Online:1989-12-10

PDF

484

被引次数

16 | 3

摘要： 电池工业目前使用的电解二氧化锰(EMD),是采用直接电解氧化法制得的[1]。由于产物紧附在阳极表面,需要剥离,无法连续生产,加上电解温度较高,电流密度偏低(0.01A·cm-2),生产效率不高,有待改进。

关键词: 活性二氧化锰, 电催化, 电化学氧化

Abstract: An indirect. electro-oxidation method for the preparation of activated manganese dioxideis proposed based on the following electrocatalytic feactions: The process is carried out at room temperature with current density of ten to seventytimes as that used in the.commercial process.The product (ECMD) had discharge capacity11.5% more than that of EMD obtained by direct electrooxidation .The amount of combinedwater and the apparent surface area were 13.4% and 83.3 m2·g-1, but 3.9% and 52.2m2·g-1for EMD sample respectively. The ECMD obtained contained 4.2% silver oxide.

Key words: Activated manganese dioxide, Electrocatalysis, electrochemical oxidation

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