Electrocatalyst for the hydrogen formation reaction
Thanks to its high energy density and environmental sustainability, hydrogen is emerging as a promising alternative to fossil fuels and a primary energy carrier. Carbon-free hydrogen production can be achieved through water electrolysis. In this process, hydrogen is generated via the cathodic hydrogen evolution reaction (HER), while the oxygen evolution reaction occurs at the anode.
Our technology introduces a new electrocatalytic composite for HER, featuring ruthenium (Ru) nanoparticles supported on a titanium oxynitride (TiON) composite, with or without graphene, and utilizing a low metal content. The enhanced performance of the Ru/TiON catalyst is due to the precise design of the material, where each component plays a crucial role.
The Ru/TiON catalyst enables more efficient hydrogen evolution reaction (HER) operation in alkaline electrolytes compared to the Pt/C catalyst. For instance, the potential required for HER at a current density of 10 mA/cm² is lower, and Ru/TiON offers a nearly four times higher mass activity. Aside from being more efficient, our catalyst is also more affordable since Ru currently comes at half the price of Pt.
Developed by: Department of Materials Chemistry.
Technology readiness level: TRL3.
Status of intellectual property: Patent pending.
Cooperation opportunities: Joint development, intellectual property licensing, or sale.