High-Performance Bimetallic Mo/Ni-N-C Electrocatalyst for Efficient Oxygen Evolution Reaction

Abstract

The oxygen evolution reaction (OER) is a crucial process in a variety of energy-related technologies, including water splitting and electrochemical conversion. Despite significant progress in the development of OER catalysts, there is still a need for more efficient and cost-effective materials. M-N-C (metal-nitrogen-carbon) materials appear as efficient, low-cost, and sustainable alternatives for the oxygen evolution reaction (OER).In this work, we have synthesized bimetallic Mo/Ni-C catalysts using shungite carbon codoped with nitrogen, molybdenum, and nickel precursors and characterized their physical and chemical properties using a variety of techniques, including X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. Due to their highly porous structure along with the high concentration of active sites these catalysts exhibit excellent activity and stability for the OER, with low overpotentials.Overall, our work highlights the potential of bimetallic Mo/Ni-N-C catalysts as efficient and cost-effective alternatives to noble-metal-based catalysts for the OER with significant implications in renewable energy technologies.