Self-assembly sandwiches of reduced graphene oxide layers with zeolitic-imidazolate-frameworks-derived mesoporous carbons as polysulfides reservoirs for lithium-sulfur batteries

doi:10.1016/j.jpowsour.2016.11.114

	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
刊名	Journal of Power Sources
	2017
卷号	341 页码:68-74
ISSN号	03787753
DOI	10.1016/j.jpowsour.2016.11.114
英文摘要	Confinement 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.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25483]
专题	中国科学院上海硅酸盐研究所
作者单位	State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
推荐引用方式 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.