Electrolytic Manganese Dioxide Production

MnSO4 + 2H2O → MnO2 + H2SO4 + H2

概要

Electrolytic manganese dioxide (EMD) is produced by electrolyzing manganese sulfate solution in sulfuric acid at 90–98°C. MnO₂ deposits on the titanium anode as a dense, high-purity gamma-phase material with superior electrochemical activity compared to natural or chemical MnO₂. EMD is essential for high-performance alkaline and lithium batteries.

参加者

役割 物質 係数 状態
反応物 Water H₂O 2 (l)
生成物 Manganese Dioxide MnO₂ 1 (s)
生成物 Sulfuric Acid H₂SO₄ 1 (aq)

日常の例

The MnO₂ cathode in every Duracell or Energizer alkaline battery is electrolytic manganese dioxide made by this process.

産業上の重要性

EMD生産量は年間50万トンを超え、アルカリ電池およびリチウム電池需要に支えられている。電池グレードのMnO₂は天然産品よりも高い純度と均一性を有する。

特性

タイプ
Electrochemical
可逆的
いいえ
エネルギー
吸熱性
ΔH
385.0 kJ/mol

関連する反応

Electrolysis of Water Electrolytic Production of Chlorate Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Cathodic Protection (Zinc Sacrificial Anode) Chlor-Alkali Electrolysis Chrome Electroplating Nickel-Metal Hydride Battery Electrochemical CO₂ Reduction to CO

Frequently Asked Questions

What is the equation for Electrolytic Manganese Dioxide Production?
The balanced equation is: MnSO₄ + 2H₂O → MnO₂ + H₂SO₄ + H₂.
What type of reaction is Electrolytic Manganese Dioxide Production?
Electrolytic Manganese Dioxide Production is a electrochemical reaction.
Is Electrolytic Manganese Dioxide Production exothermic or endothermic?
Electrolytic Manganese Dioxide Production is endothermic (absorbs energy). The enthalpy change (ΔH) is 385.0 kJ/mol.