Trifunctional noble-metal-free multi-site electrocatalysts based on NiMn-LDH/CuCo2S4/rGO for energy-saving hydrogen generation via UOR/HER/OER

Key Points

• The research aims to develop efficient non-noble electrocatalysts for hydrogen generation via urea-splitting systems.
• Synthesis of ternary composites using NiMn-LDH, CuCo2S4, and reduced graphene oxide (rGO)
• Characterization of the electrocatalytic performance for urea oxidation reaction (UOR), hydrogen evolution reaction (HER), and oxygen evolution reaction (OER)
• Assessment of stability and efficiency of the developed materials under operational conditions.
• The ternary composites exhibited significant electrocatalytic activity for UOR, HER, and OER
• High stability observed during extended operational tests
• Demonstrated potential for energy-saving hydrogen generation compared to conventional catalysts