Porous Carbon Nanosphere with Multiple Heteroatom Doping Derived from Silicon Oxycarbonitride as Sulfur Host for Lithium-Sulfur Batteries

doi:10.1002/ente.202100067

	Porous Carbon Nanosphere with Multiple Heteroatom Doping Derived from Silicon Oxycarbonitride as Sulfur Host for Lithium-Sulfur Batteries
	Chen, Qingqing 1,2; Hu, Jinlong 2; Lu, Jiqun 1,2; Li, Youpeng 2; Zhang, Lingzhi 2
刊名	ENERGY TECHNOLOGY
	2021-04-30
页码	9
关键词	etching lithium– sulfur batteries multiple heteroatom doping porous carbon nanospheres silicon oxycarbonitride
ISSN号	2194-4288
DOI	10.1002/ente.202100067
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	The porous carbon nanosphere with multiple heteroatom doping derived from silicon oxycarbonitride (SiOCN) with an interconnected carbon and silica domains is reported as a robust host of the sulfur cathode for lithium-sulfur batteries. The synthesis of the porous carbon nanosphere (SiOCN-H) is straightforward etching spherical SiOCN prepared through pyrolysis of a Schiff-base-SiO2 precursor. The pore structure of SiOCN-H can be easily adjusted by altering the amount of tetraethyl orthosilicate added in the aldimine condensation reaction of 3-aminopropyl-triethoxysilane with glutaraldehyde. The optimized sample of SiOCN-H-1 possesses a larger pore volume of 1.433 cm(3) g(-1) and contains multiple heteroatoms of Si, O, and N with a total amount of about 21 wt%. The sulfur cathode based on SiOCN-H-1 exhibits decent cycling performance, retaining 77.2% of the initial capacity at 0.2C after 100 cycles. At 0.5C, the S/SiOCN-H-1 cathode still maintains remarkable cycling stability, delivering a reversible discharge capacity of 540 mAh g(-1) after 400 cycles with a low decay of 0.076% per cycle. The porous spherical structure and the chemical bonding capability of doped heteroatoms in SiOCN-H-1 primarily contribute to the high performances of the S/SiOCN-H-1 cathode by alleviating the dissolution and shuttle effect of polysulfides.
资助项目	China Postdoctoral Science Foundation[2020M682938] ; National Natural Science Foundation of China[22075288]
WOS关键词	PERFORMANCE ; NITROGEN ; OXYCARBIDE ; CATHODE ; ANODE
WOS研究方向	Energy & Fuels
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000645562300001
资助机构	China Postdoctoral Science Foundation ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33006]
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	1.Univ Chinese Acad Sci, Guangzhou Inst Energy Convers, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qingqing,Hu, Jinlong,Lu, Jiqun,et al. Porous Carbon Nanosphere with Multiple Heteroatom Doping Derived from Silicon Oxycarbonitride as Sulfur Host for Lithium-Sulfur Batteries[J]. ENERGY TECHNOLOGY,2021:9.
APA	Chen, Qingqing,Hu, Jinlong,Lu, Jiqun,Li, Youpeng,&Zhang, Lingzhi.(2021).Porous Carbon Nanosphere with Multiple Heteroatom Doping Derived from Silicon Oxycarbonitride as Sulfur Host for Lithium-Sulfur Batteries.ENERGY TECHNOLOGY,9.
MLA	Chen, Qingqing,et al."Porous Carbon Nanosphere with Multiple Heteroatom Doping Derived from Silicon Oxycarbonitride as Sulfur Host for Lithium-Sulfur Batteries".ENERGY TECHNOLOGY (2021):9.