Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



MOF-Derived Hollow SiOx Nanoparticles Wrapped in 3D Porous Nitrogen-doped Graphene Aerogel and their Superior Performance as the Anode for Lithium-ion Batteries

Abstract

A nanocomposite anode material consisting of metal-organic framework (MOF)-derived hollow SiOx nanoparticles wrapped in three dimensional (3D) nitrogen-doped graphene aerogel(N-GA) has been fabricated through a facile approach through three steps (MOF-templet inducting, self-assembly and nitrogen-doping, freeze-drying and thermal treatment process). The hollow SiOx nanoparticles with an average size of 100-160 nm are distributed on 3D N-GA. Such nanocomposites possess a 3D porous structure with BET surface area as high as 426.3 m2 g-1. In this nanostructure, the N-GA’s property of interconnected porous network enables it to provide pathways for rapid electron transfer and Li+ transport, while the MOF-derived hollow SiOx nanoparticles with void space can accommodate the volume change during lithiation/delithiation process. As a result, a high rate capability (675 mAh g-1 under 50 C) as well as a long-life cycling stability (1233.2 mAh g-1 under 10 C, 86% capacity retention over 500 cycles) is achieved.

Back to tab navigation

Supplementary files

Article information


Submitted
27 Mar 2020
Accepted
19 May 2020
First published
19 May 2020

Nanoscale, 2020, Accepted Manuscript
Article type
Paper

MOF-Derived Hollow SiOx Nanoparticles Wrapped in 3D Porous Nitrogen-doped Graphene Aerogel and their Superior Performance as the Anode for Lithium-ion Batteries

C. Guo, Y. Xie, K. Pan and L. Li, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/D0NR02453H

Social activity

Search articles by author

Spotlight

Advertisements