Abstract
Investigation of interfacial reactions between Si and multi-walled carbon nanotubes (MWCNTs) and their effect on lithium storage properties has not yet been reported. Herein, deposition of amorphous Si nanoparticles on MWCNTs is reported by a low pressure chemical vapor deposition. The structural and interfacial evolutions upon high-temperature annealing are systematically investigated, and the results show that Si nanoparticles gradually react with MWCNTs from interfacial regions by forming SiC bonds with increasing annealling temperature, and Si nanoparticles completely convert into SiC by reacting with the interfacial carbon atoms at 1200 °C. When examined as anode materials for lithium ion batteries, the Si/MWCNTs with partial interfacial SiC demonstrate the best lithium storage properties, owing to the robust connections between Si and MWCNTs via a chemical bonding of SiC, which buffers the volume changes during the LiSi alloying-dealloying.
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.
