Synergistic electrochemical performance of NdFeO3/rGO composite for enhanced and evolution reactions

The research delves into a comprehensive process for synthesizing and characterizing NdFeO3, reduced graphene oxide (rGO), and their composite. In present work, the NdFeO3/rGO composite is synthesized using ultrasonic methods. Subsequently, techniques such as FT-IR, XRD, SEM, EDX, and XPS univocally affirmed the synthesis of NdFeO3/rGO. The pristine materials NdFeO3, rGO, and NdFeO3/rGO were investigated for oxygen evolution reaction (OER) and hydrogen evolution reaction. The findings reveal that the NdFeO3/rGO composite exhibits superior OER and HER compared to individual components in the presence of 1 M KOH solution. The NdFeO3/ rGO at current densities of 100, 500 and 1000 mAcm-2 displays lower overpotentials 220, 255 and 345 mV for OER and enhanced stability over extended testing periods for 80 h. Similarly, composite at current densities of 100, 500, and 1000 mAcm-2 to acquire overpotentials of 206, 301, and 466 mV, respectively. The exalted electrocatalytic performance of NdFeO3/rGO is related to the production of synergism between NdFeO3 and rGO, promoting faster charge transfer kinetics and catalytic activity. Overall, the study underscores the potential of NdFeO3/rGO as promising and inexpensive electrocatalysts for OER and HER, offering significant promise for applications in sustainable energy conversion.