Mn(NO3)2 + 2H2O ± 2e- → H2 + MnO2 + 2HNO3
Electrolysis aqueous solution manganese(II) nitrate to produce hydrogen manganese(IV) oxide and nitric acid.
- Cathodic process: 2H+ + 2e- → H2
- Anodic process: Mn2+ + 2H2O - 2e- → MnO2 + 4H+