3D Vertically Aligned and Interconnected Porous Carbon Nanosheets as   Sulfur Immobilizers for High Performance Lithium-Sulfur Batteries

doi:10.1002/aenm.201502518

CORC > 北京大学 > 工学院

	3D Vertically Aligned and Interconnected Porous Carbon Nanosheets as Sulfur Immobilizers for High Performance Lithium-Sulfur Batteries
	Rehman, Sarish ; Gu, Xingxing ; Khan, Kishwar ; Mahmood, Nasir ; Yang, Wenlong ; Huang, Xiaoxiao ; Guo, Shaojun ; Hou, Yanglong
刊名	ADVANCED ENERGY MATERIALS
	2016
关键词	OXYGEN REDUCTION REACTION LI-S BATTERIES NITROGEN-DOPED GRAPHENE ION BATTERIES LONG-LIFE CATHODE COMPOSITES SUPERCAPACITORS NANOPARTICLES NANOSTRUCTURE
DOI	10.1002/aenm.201502518
英文摘要	A unique nanostructure of 3D and vertically aligned and interconnected porous carbon nanosheets (3D-VCNs) is demonstrated by a simple carbonization of agar. The key feature of 3D-VCNs is that they possess numerous 3D channels with macrovoids and mesopores, leading to high surface area of 1750 m(2) g(-1), which play an important role in loading large amount of sulfur, while vertically aligned microporous carbon nanosheets act as the multilayered physical barrier against polysulfides anions and prevent their dissolution in the electrolyte due to strong adsorption during cycling process. As a result, the 3D hybrid (3D-S-VCNs) infiltered with 68.3 wt% sulfur exhibits a high and stable reversible capacity of 844 mAh g(-1) at the current density of 837 mA g(-1) with excellent Coulombic efficiency approximate to 100%, capacity retention of approximate to 80.3% over 300 cycles, and good rate ability (the reversible capacity of 738 mAh g(-1) at the high current density of 3340 mA g(-1)). The present work highlights the vital role of the introduction of 3D carbon nanosheets with macrovoids and mesopores in enhancing the performance of LSBs.; NSFC-RGC Joint Research Scheme [51361165201]; Beijing Project of Science and Technology [Z141100003814012]; NSFC [51590882, 51125001, 51172005]; Ministry of Education of China [20120001110078]; Interdisciplinary Project of Beijing New Star Plan of Science and Technology; National Laboratory of Molecular Science; Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education of China; SCI(E); EI; ARTICLE; hou@pku.edu.cn; 12; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492138]
专题	工学院
推荐引用方式 GB/T 7714	Rehman, Sarish,Gu, Xingxing,Khan, Kishwar,et al. 3D Vertically Aligned and Interconnected Porous Carbon Nanosheets as Sulfur Immobilizers for High Performance Lithium-Sulfur Batteries[J]. ADVANCED ENERGY MATERIALS,2016.
APA	Rehman, Sarish.,Gu, Xingxing.,Khan, Kishwar.,Mahmood, Nasir.,Yang, Wenlong.,...&Hou, Yanglong.(2016).3D Vertically Aligned and Interconnected Porous Carbon Nanosheets as Sulfur Immobilizers for High Performance Lithium-Sulfur Batteries.ADVANCED ENERGY MATERIALS.
MLA	Rehman, Sarish,et al."3D Vertically Aligned and Interconnected Porous Carbon Nanosheets as Sulfur Immobilizers for High Performance Lithium-Sulfur Batteries".ADVANCED ENERGY MATERIALS (2016).