Hydrogen production via electrolysis and ultrasound-assisted sonoelectrolysis: evaluating NiO, CoO, and MnO 2 catalyst performance and process efficiency

Key Points

• To evaluate the performance of NiO, CoO, and MnO2 catalysts in hydrogen production via electrolysis and sonoelectrolysis.
• Conducted experiments on hydrogen production using NiO, CoO, and MnO2 catalysts.
• Assessed the effects of temperature and ultrasonic power on hydrogen generation.
• Employed DOE/RSM to identify optimal conditions for the catalysts.
• NiO at 60 °C was identified as the optimal catalyst for hydrogen production.
• Sonoelectrolysis increased hydrogen generation rates but reduced overall energy efficiency.