Breakthrough in Nanotechnology: Mo-Doped Ni3S2 Nanorods Show Superior Overall Water Splitting Performance

Strategic Insights -

Researchers at Savitribai Phule Pune University have made a significant discovery in the field of nanotechnology, developing a novel electrocatalyst that demonstrates superior overall water splitting performance. The team, led by Ashish Yengantiwar, has successfully synthesized Mo-doped Ni3S2 nanorods on a nickel foam substrate using a two-step hydrothermal method. This breakthrough has the potential to revolutionize the field of renewable energy by providing a sustainable and cost-effective solution for hydrogen production.

Key Takeaways:

  • The Mo-doped Ni3S2 nanorods exhibit exceptional catalytic performance, with an outstanding overpotential of 230 mV at 100 mA/cm² for oxygen evolution reaction (OER) and 100.6 mV at 10 mA/cm² for hydrogen evolution reaction (HER).
  • The research demonstrates the dual-functionality of the Mo-Ni3S2/N-NF electrode in alkaline medium, with a good stability and performance for both OER and HER.
  • The Mo-Ni3S2/N-NF electrocatalyst shows a total cell voltage of 1.56 V and 90% retention of the original current density after 22 hours of continuous testing.
  • The approach provides a new insight into developing earth-abundant, inexpensive, and superior dual-functional electrocatalyst for overall water splitting reaction (WSR).
  • The research has been peer-reviewed and published in the International Journal of Hydrogen Energy, 2025;141:729-737.

Statistics:

  • 100 mA/cm²: Current density at which the Mo-Ni3S2/N-NF electrode exhibits an outstanding overpotential of 230 mV for OER.
  • 10 mA/cm²: Current density at which the Mo-Ni3S2/N-NF electrode exhibits an excellent overpotential of 100.6 mV for HER.
  • 90%: Retention of the original current density after 22 hours of continuous testing.
  • 1.56 V: Total cell voltage of the Mo-Ni3S2/N-NF integrated system.
  • 22 hours: Duration of continuous testing to demonstrate the stability of the Mo-Ni3S2/N-NF electrode.

Sources:

  • VerticalNews. "Research Examines Nanotechnology - Nanorods," News Reporter-Staff News Editor, Nanotechnology Weekly, July 21, 2025.
  • International Journal of Hydrogen Energy, 2025;141:729-737.
  • NewsRx. "Studies from Savitribai Phule Pune University Describe New Findings in Nanorods (Growth of Mo-doped Ni 3 s 2 Nanorods Array for Superior Overall Water Splitting Reaction)," Nanotechnology Weekly, July 21, 2025.