Electrolytic Manganese Dioxide Production
MnSO4 + 2H2O → MnO2 + H2SO4 + H2
Visão geral
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.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Water H₂O | 2 | (l) |
| Produto | Manganese Dioxide MnO₂ | 1 | (s) |
| Produto | Sulfuric Acid H₂SO₄ | 1 | (aq) |
Exemplo do cotidiano
The MnO₂ cathode in every Duracell or Energizer alkaline battery is electrolytic manganese dioxide made by this process.
Importância industrial
A produção de DME ultrapassa as 500.000 toneladas anuais, impulsionada pela procura da indústria de baterias alcalinas e de iões-lítio. É essencial para dispositivos eletrónicos portáteis, veículos elétricos e armazenamento de energia em rede.
Propriedades
- Tipo
- Electrochemical
- Reversível
- Não
- Energia
- Endotérmico
- ΔH
- 385,0 kJ/mol
Reações relacionadas
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Alkaline Battery Discharge
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Nickel-Metal Hydride Battery
Daniell Cell (Zinc-Copper Galvanic Cell)
Electrolysis of Molten NaCl (Downs Process)
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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.