期刊
ELECTROCHIMICA ACTA
卷 227, 期 -, 页码 203-209出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.01.036
关键词
LIBs; SIBs; MoS2; SnS2; microwave-assisted hydrothermal reaction
资金
- National Natural Science Foundation of China [51672240, 51571172, 51571171, 51272225, 51271214, 51421091, 11404280]
- Program for New Century Excellent Talents in University [NCET-13-0993]
- Natural Science Foundation of Hebei Province [E2014203144, A2015203337]
- Science Foundation for the Excellent Youth Scholars from Universities and Colleges of Hebei Province [YQ2014009]
- Research Program of the College Science & Technology of Hebei Province [QN2014047]
Graphene nanosheets (GNS)/MoS2 composites were obtained by liquid phase exfoliation, and then SnS2 nanoflakes anchored GNS/MoS2 composites by the single mode microwave-assisted hydrothermal technique. The architecture that MoS2 nanosheets are parallel to and inserted into GNS layers, 20 nm SnS2 nanoflakes uniformly attaching on the MoS2/GNS nanocomposites have been obtained. GNS@MoS2@SnS2 exhibits superior lithium ion batteries (LIBs) and sodium ion batteries (SIBs) performance in terms of specific capacity, cycling stability. At a current density of 80 mA g(-1), GNS@MoS2@SnS2 exhibits a discharge capacity of 743 mA h g(-1) after 100 cycles for LIBs, and 100 mA h g(-1) for SIBs. The excellent electrochemical performance of GNS@MoS2@SnS2 electrodes with the mass ratio of 1/6/7 is attributed to synergistic effects from the optimized architecture and proportion for GNS, MoS2, and SnS2 anode materials. (C) 2017 Elsevier Ltd. All rights reserved.
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