期刊
CARBON
卷 92, 期 -, 页码 119-125出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.03.061
关键词
-
资金
- National Natural Science Foundation of China (NSFC) [21203133, 21301124, 21473120, 51272168]
- Natural Science Foundation of Jiangsu Province [BK2012186]
This work presents the self-assembly growth of metal organic frameworks (ZIF-67) dodecahedrons on graphene oxides (GO) nanosheets. Ultrafine Co3O4 nanocrystallites with size of less than 10 nm are uniformly spread on graphene nanosheets through pyrolysis of GO/ZIF-67. The relative mass ratio of graphene to Co3O4 is controlled by adjusting the repeated numbers of GO in precursor solutions. For application as anode material of Li-ion batteries, graphene/Co3O4 manifests good high rate behavior (877 mAh g(-1) at the current density of 5000 mA g(-1)) and long-term cycling stability (714 mAh g(-1) after 200 cycles). (C) 2015 Elsevier Ltd. All rights reserved.
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