Journal
NANO RESEARCH
Volume 9, Issue 12, Pages 3757-3771Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1246-z
Keywords
nanocrystals; ordered mesoporous graphene spheres; nanocrystal superlattices; self-assembly; lithium-ion battery
Categories
Funding
- National Basic Research Program of China [2014CB845602]
- Natural National Science Foundation of China [21373052, 51573030, 51573028, 51373035, 51373040]
- Shanghai International Science and Technology Cooperation Project [15520720100]
- 1000 Youth Talents Plan
- International Science and Technology Cooperation Program of China [2014DFE40130]
Ask authors/readers for more resources
Three-dimensional (3D) graphene has recently attracted enormous attention for electrochemical energy storage applications. However, current methods suffer from an inability to simultaneously control and engineer the porosity and morphology of the graphene frameworks. Here, we report the designed synthesis of ordered mesoporous graphene spheres (OMGSs) by transformation of self-assembled Fe3O4 nanocrystal superlattices. The resultant OMGSs have an ultrathin framework comprising few-layered graphene, with highly ordered and interconnected mesoporosity and a high surface area. These advantageous structural and textural features, in combination with the excellent electrical conductivity of the graphitic frameworks, render the OMGSs an ideal and general platform for creating hybrid materials that are well suited for use as composite electrodes in lithium-ion batteries (LIBs). As a proof-of-concept demonstration, SnO2 and GeO2 nanoparticles are incorporated into the OMGSs to afford SnO2@OMGSs and GeO2@OMGSs, respectively, both of which exhibit outstanding lithium storage properties when used as LIB anodes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available