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Self-assembly sandwiches of reduced graphene oxide layers with zeolitic-imidazolate-frameworks-derived mesoporous carbons as polysulfides reservoirs for lithium-sulfur batteries
Tan, Yingbin; Jia, Zhiqing; Lou, Peili; Cui, Zhonghui; Guo, Xiangxin
2017
Source PublicationJournal of Power Sources
ISSN03787753
Volume341Pages:68-74
AbstractConfinement of sulfur and alleviation of the polysulfides dissolution are the key issues for development of high-performance lithium-sulfur (Li-S) batteries. Here, we report self-assembly sandwiches composed of zeolitic-imidazolate-frameworks (ZIF-8)-derived mesoporous carbons (ZIF-8(C)) in between reduced graphene oxide (rGO) layers, which are filled with sulfurs inside and coated with poly(3, 4-ethylenedioxythiophene) (PEDOT) outside (noted as P@rGO/ZIF-8(C)). During the synthesis process, the rGO layers stabilize the structure of ZIF-8 nanocrystals to obtain large specific surface area and high electric conductivity of mesoporous materials (rGO/ZIF-8(C)), ensuring accommodation of a large amount of sulfur and the efficient utilization of the confined sulfur. The mesoporous rGO/ZIF-8(C), PEDOT and N-doping provide physical absorption and chemical binding to the polysulfides during cycles. Consequently, the Li-S batteries with the composite cathodes exhibit the high capacity of 1308 mAh g−1and 865 mAh g−1at 0.2 C and 1 C, respectively, and a very low capacity fading of 0.03% per cycle after 500 reversible cycles at 1 C rate. The results indicate that the P@rGO/ZIF-8(C)-S composite cathode may offer a feasible strategy for construction of sulfur cathodes for high-performance Li-S batteries. © 2016 Elsevier B.V.
DOI10.1016/j.jpowsour.2016.11.114
EI Accession Number20164903102869
EI KeywordsLithium sulfur batteries
EI Classification Number702.1.1 Primary Batteries - 761 Nanotechnology - 804 Chemical Products Generally - 815.1.1 Organic Polymers - 951 Materials Science
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25483
Collection中国科学院上海硅酸盐研究所
AffiliationState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
Recommended Citation
GB/T 7714
Tan, Yingbin,Jia, Zhiqing,Lou, Peili,et al. Self-assembly sandwiches of reduced graphene oxide layers with zeolitic-imidazolate-frameworks-derived mesoporous carbons as polysulfides reservoirs for lithium-sulfur batteries[J]. Journal of Power Sources,2017,341:68-74.
APA Tan, Yingbin,Jia, Zhiqing,Lou, Peili,Cui, Zhonghui,&Guo, Xiangxin.(2017).Self-assembly sandwiches of reduced graphene oxide layers with zeolitic-imidazolate-frameworks-derived mesoporous carbons as polysulfides reservoirs for lithium-sulfur batteries.Journal of Power Sources,341,68-74.
MLA Tan, Yingbin,et al."Self-assembly sandwiches of reduced graphene oxide layers with zeolitic-imidazolate-frameworks-derived mesoporous carbons as polysulfides reservoirs for lithium-sulfur batteries".Journal of Power Sources 341(2017):68-74.
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