期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 32, 页码 17963-17968出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04673
关键词
one-pot synthesis; SnO2; graphene; carbon nanotubes; hybrid architectures; lithium ion batteries
资金
- National Natural Science Foundation of China [51173055, 21305048]
- National Program on Key Basic Research Project (973 Program) [2013CBA01600]
Three-dimensional (3D) graphene/carbon nanotube (CNT)/Sn02 (GCS) hybrid architectures were constructed by a facile and cost-effective self-assembly method through hydrothermal treatment of a mixture of Sn2+, CNTs, and graphene oxide (GO). The resultant GCS displayed a 3D hierarchically porous structure with large surface area and excellent electrical conductivity, which could effectively prevent the aggregation and volume variation of SnO2 and accelerate the transport of ions and electrons through 3D pathways. Benefiting from the unique structure and the synergistic effect of different components in the hybrid architectures, the GCS exhibited a remarkably improved reversible capacity of 842 mAh g(-1) after 100 cycles at 0.2 A g(-1) and excellent rate performance for lithium storage compared with that of graphene/Sn02 (GS) hybrid architectures. Hence, the impressive results presented here could provide a universal platform for fabricating graphene/CNTbased hybrid architectures with promising applications in various fields.
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