Design and fabrication of NdFeO3 adorned on MXene: a hybrid electrode for supercapacitor applications

초록

This study investigated the electrochemical characteristics of NdFeO3 nanocomposite improved with added small quantity of MXene. The NdFeO3/MXene was synthesized using a standard solve-thermal technique and analyzed using X-ray diffraction, Fourier Transform Infrared Spectroscopy, etc . The electrochemical efficiency of the composite was tested for supercapacitors (SCs). The compositive was investigated in 3 M KOH electrolytic solution where NdFeO3/MXene was pasted on nickel foam and served as working electrode. CV revealed that NdFeO3/MXene has reached the capacitance of 1148.12 F g-1 (5 mV s-1). GCD research revealed that NdFeO3 nanoparticles along with NdFeO3/MXene nanocomposite had capacitance values of 703.17 F g-1 as well as 1315.06 F g-1 at 1 A g-1. The NdFeO3/MXene indicated that greater Ed along with Pd is 17.99 Wh kg-1, 510 W kg-1. After 4700 cycles, the material containing NdFeO3/MXene nanocomposite remained stable. Chrono test confirmed high stability of composite material. The electrochemical investigation of generated NdFeO3 nanocomposite shown that addition of MXene caused in a hybrid capacitive nature, as the suggested NdFeO3/MXene can be used as SCs electrodes in energy storage. The NdFeO3/MXene nanocomposite exhibits excellent electrochemical performance as compared to previously reported perovskite-MXene, due to its optimized hetero-interface, greater electrical conductivity, as well as abundant redox active site. The incorporation of NdFeO3 enhanced pseudo-capacitive behavior, while MXene provides quick electron transport pathway, resulting in higher specific capacitance, outstanding rate capability, and cyclic stability to earlier perovskite-MXene.

키워드