Abstract
This work presents a hydrothermal synthesis of W-doped Fe3O4 nanoparticles. The results indicate that Fe2+ but not Fe3+ is substituted with W6+. Both undoped and doped Fe3O4 show ferromagnetic behaviors. The magnetism of Fe3O4 decreases from 7.2emug−1 to 5.0emug−1 after doping, because the superexchange interactions between Fe2+ and Fe3+ are hindered by W. Interestingly, W-doped Fe3O4 exhibits improved reversible capacity of 629mAhg−1 in comparison with 341.3mAhg−1 of pure Fe3O4 for their first charge/discharge cycle, and shows higher initial Coulombic efficiency of 86.1%. Moreover, better cyclic stability has been obtained for W-doped Fe3O4. The W-doped Fe3O4 would be a candidate in applications of lithium ion batteries, magnetic materials, and other areas.
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.
