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
Electrorefining of Copper
Alkaline Battery Discharge
Anodizing of Aluminum
Chlor-Alkali Electrolysis
Nickel-Metal Hydride Battery
Daniell Cell (Zinc-Copper Galvanic Cell)
Electrolysis of Molten NaCl (Downs Process)
Lead-Acid Battery Discharge
Hall-Héroult Process (Aluminum Smelting)
Electrolysis of Water
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.