Abstract
NiFe2O4 and NiO@NiFe2O4 nanocrystalline spinels were synthesized by a hydrothermal method. The structural, electronic, and electrochemical properties were studied to evaluate the effect of the preparation conditions on the materials when used as supercapacitor electrodes. The characterization results indicated that a suitable surfactant, reaction temperature and heating time could improve the electrochemical properties. The NiFe2O4 nanoparticles presented a capacitance of 113.6 F/g and a capacity retention of 83.3% after 2000 charge/discharge cycles. The NiO@NiFe2O4 composite material had a capacitance of 248.4 F/g and an electrochemical stability of 89.2% after 2000 cycles. Theoretical calculations were performed to provide more insight into the electrochemical performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
