Abstract
Abstract RuO 2 hollow spheres as a macroporous model structure for substituting a graphite anode in a lithium ion battery were successfully fabricated by utilizing the electrostatic attraction between exfoliated RuO 2 nanosheets and cationic polymers onto the polystyrene (PS) templates. According to the results of scanning electron microscopy, thin RuO 2 nanosheets were homogeneously covered onto the polystyrene beads before calcination. Transmission electron microscopy images clearly indicated complete removal of the PS templates after calcination at 500 °C for 2 h, leading to RuO 2 hollow spheres with a macroporous structure. Electrochemical charge/discharge experiments demonstrated a much larger lithium storage capacity for the RuO 2 hollow spheres described here (600 mAh/g) than that of bare rutile RuO 2 (340 mAh/g), highlighting the effectiveness of this synthetic technology.
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.
