| 초록 |
Due to environmental pollution and depletion of fossil fuels, sustainable and eco-friendly energy sources are required to replace them. Hydrogen has been considered as a sustainable alternative to fossil fuels owing to its high energy density, abundance, and cleanness. Electrochemical water splitting is a green and sustainable method for hydrogen production. Even though Pt-based catalysts show the best performance for Hydrogen Evolution Reaction (HER), their industrial applications are restricted because of their high price and scarcity. Here, we fabricated molybdenum nitride-based electrocatalysts (Mo2N, Mo2N/GR, Mo2N/CNT, Mo2N/CNT-GR) as Pt-free electrocatalysts for the HER. The Mo2N-based catalysts were fabricated by the modified urea-glass route and their electrochemical properties were analyzed in alkaline media (1M KOH). In this route, urea was employed as a nitrogen source for nitride formation instead of NH3 gas used in typical nitride synthesis. Among these catalysts, Mo2N/CNT-GR showed the best performance for HER in alkaline media. |
