Ce₂Mo₃O₁₂/g-C₃N₄ nanocomposites: Optimization of synthesis parameters, characterization, and study as a potential hydrogen storage material

In order to improve the electrochemical hydrogen storage capacity, Ce₂Mo₃O₁₂/g-C₃N₄ nanocomposites were synthesized via sonochemical approach with involving desirable electrochemical efficiency, great specific surface area, and special morphology. Herein, the electrochemical hydrogen storage abilities of as-schemed electrodes, namely Ce₂Mo₃O₁₂, g-C₃N₄, and Ce₂Mo₃O₁₂/g-C₃N₄ nanocomposites were studied via chronopotentiometry charge–discharge (CCD) method at constant current. According to the obtained results, the combination effect between the Ce₂Mo₃O₁₂ and g-C₃N₄ can boost the electrochemical hydrogen storage performance in terms of discharge capacity and cycling stability. The maximum value of capacity for Ce₂Mo₃O₁₂/g-C₃N₄ nanocomposites was about 1920.3 mAh/g, which is a significant result as compared to the Ce₂Mo₃O₁₂ (S₃, 1003.2 mAh/g) after 20 cycles. Consequently, the Ce₂Mo₃O₁₂/g-C₃N₄ nanocomposites displayed a worthy capacity as capable active materials for hydrogen storage application.