Electrolytic Manganese Dioxide Production

MnSO4 + 2H2O → MnO2 + H2SO4 + H2

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Water H₂O 2 (l)
Sản phẩm Manganese Dioxide MnO₂ 1 (s)
Sản phẩm Sulfuric Acid H₂SO₄ 1 (aq)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

EMD production exceeds 500,000 tonnes annually, driven by demand from the alkaline and lithium battery industries.

Tính chất

Loại
Electrochemical
Thuận nghịch
Không
Năng lượng
Thu nhiệt
ΔH
385,0 kJ/mol

Phản ứng liên quan

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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.