Promoting Electrocatalytic Conversion of Polysulfide using Cobalt Disulfide Nanocrystals for Lithium Sulfur Batteries

doi:10.1021/acs.jpcc.0c06135

	Promoting Electrocatalytic Conversion of Polysulfide using Cobalt Disulfide Nanocrystals for Lithium Sulfur Batteries
	Hu, Qianqian 1,2,3; Wang, Biao 1,2,4; Lu, Jiqun 2; Zhang, Congcong 1,2; Yang, Chun 1,2,4; Chang, Shiyong 3; Dong, Haiyong 3; Wu, Chunyu 3; Hong, Ye 5; Zhang, Lingzhi 2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2020-10-01
卷号	124 期号:39 页码:21319-21328
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.0c06135
通讯作者	Hong, Ye(hongye2016@163.com) ; Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	Lithium sulfur batteries provide one of the most attractive opportunities for next generation energy storage devices benefiting from their particularly high energy density. However, the obstacle mainly originating from the sluggish conversion kinetics between the soluble lithium polysulfide immediate and S/Li2S/Li2S2 results in lithium sulfur batteries with low sulfur usage and coulombic efficiency, poor cycling, and rate performance. In this work, a new cathode host material with cobalt disulfide nanoparticles supported on reduced graphene oxides (GOs) has been designed to enhance the interactive affinity to lithium polysulfide and accelerate polysulfide conversion more effectively. With the implementation of these metal chalcogenides, a sulfur cathode with low polarization, stable cycling performance, and high rate capability is obtained. Moreover, this work offers solid evidence from the post mortem analysis of symmetric cells such as SEM and XPS, confirming the origin of the catalytic effects from cobalt disulfide nanocrystals wrapped with reduced GOs in a sulfur battery.
资助项目	K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Guangzhou Automobile Group, China
WOS关键词	CARBON ; PERFORMANCE ; CATHODE ; NANOTUBES ; COMPOSITE ; NANOCAGES ; NITROGEN ; SURFACE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000577151900010
资助机构	K.C. Wong Education Foundation ; National Natural Science Foundation of China ; Guangzhou Automobile Group, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32180]
专题	中国科学院广州能源研究所
通讯作者	Hong, Ye; Zhang, Lingzhi
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 3.GAC Automot Res & Dev Ctr, Guangzhou 511434, Peoples R China 4.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 5.Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Peoples R China
推荐引用方式 GB/T 7714	Hu, Qianqian,Wang, Biao,Lu, Jiqun,et al. Promoting Electrocatalytic Conversion of Polysulfide using Cobalt Disulfide Nanocrystals for Lithium Sulfur Batteries[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2020,124(39):21319-21328.
APA	Hu, Qianqian.,Wang, Biao.,Lu, Jiqun.,Zhang, Congcong.,Yang, Chun.,...&Zhang, Lingzhi.(2020).Promoting Electrocatalytic Conversion of Polysulfide using Cobalt Disulfide Nanocrystals for Lithium Sulfur Batteries.JOURNAL OF PHYSICAL CHEMISTRY C,124(39),21319-21328.
MLA	Hu, Qianqian,et al."Promoting Electrocatalytic Conversion of Polysulfide using Cobalt Disulfide Nanocrystals for Lithium Sulfur Batteries".JOURNAL OF PHYSICAL CHEMISTRY C 124.39(2020):21319-21328.