One step hydrothermal preparation of NiFe2O4@g-CN nanosheets for low-cost electrode material storage devices

• Published in: Journal of materials science. Materials in electronics 2024-03, Vol.35 (8), p.608, Article 608
• Main Authors: Alrowaily, Albandari. W., Alotaibi, B. M., Ali, Mahmood, Alyousef, Haifa A., Alotiby, Mohammed F., Abdullah, Muhammad, Al-Sehemi, Abdullah G., Henaish, A. M. A., Ahmad, Zubair, Aman, Salma
• Format: Article
• Language: English
• Subjects: Carbon nitride; Characterization and Evaluation of Materials; Charge transfer; Chemistry and Materials Science; Electrochemical analysis; Electrode materials; Electrodes; Energy storage; Materials Science; Nanocomposites; Nanosheets; Nickel ferrites; Optical and Electronic Materials; Stability tests; Storage equipment; Water splitting
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-024-12362-5

The increasing interest in spinel ferrites due to their notable characteristics including elevated electrochemical stability, redox states and pseudocapacitive activity which make them suitable for application in supercapacitors. The present research involves synthesis of NiFe 2 O 4 @g-CN electrode material using hydrothermal route. The various characterization techniques including, electrochemical and physical were used for NiFe 2 O 4 and NiFe 2 O 4 @g-CN nanocomposite. The fabricated NiFe 2 O 4 @g-CN nanosheet showed exceptional specific capacitance of 740 F/g energy and power density were 38 Wh/Kg and 305 W/Kg respectively at 1 A/g determined from galvanostatic charge discharge plot. The charge transfer resistance ( R ct ) value of NFO@g-CN (0.23 Ω) exhibited lower value than NFO (0.35 Ω) and g-CN (0.27 Ω). The electrochemical stability test revealed that after 5000th cycle NiFe 2 O 4 @g-CN material maintains a very stable structure. Therefore, improvements in electrochemical efficiency of NiFe 2 O 4 because of inclusion of graphitic carbon nitride which provided larger surface area, synergistic interaction and large number of active sites. These finding indicates that electrodes materials have potential material for energy storage device and it can further used in toward water splitting and various energy storage equipment’s.