Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a   Lithium Ion Battery Anode

doi:10.1021/nn4047138

CORC > 北京大学 > 工学院

	Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode
	Mahmood, Nasir ; Zhang, Chenzhen ; Liu, Fei ; Zhu, Jinghan ; Hou, Yanglong
刊名	acs nano
	2013
关键词	architectured anode hydrothermal process Co3Sn2@Co nitrogen-doped graphene lithium ion battery OXYGEN REDUCTION REACTION ELECTROCHEMICAL PERFORMANCE REDUCED GRAPHENE FACILE SYNTHESIS STORAGE OXIDE CAPACITY SHEETS ELECTRODE COMPOSITE
DOI	10.1021/nn4047138
英文摘要	A facile strategy was designed for the fabrication of hybrid of Co3Sn2@Co nanoparticles (NPs) and nitrogen-doped graphene (NG) sheets through a hydrothermal synthesis, followed by annealing process. Core-shell architecture of Co3Sn2@Co pin on NG is designed for the dual encapsulation of Co3Sn2 with adaptable ensembles of Co and NG to address the structural and interfacial stability concerns facing tin-based anodes. In the resulted unique architecture of Co3Sn2@Co-NG hybrid, the sealed cobalt cover prevents the direct exposer of Sn with electrolyte because of encapsulated structure and keeps the structural and interfacial integrity of Co3Sn2. However, the elastically strong, flexible and conductive NG overcoat accommodates the volume changes and therefore brings the structural and electrical stabilization of Co3Sn2@Co NPs. As a result, Co3Sn2@Co-NG hybrid exhibits extraordinary reversible capacity of 1615 mAh/g at 250 mA/g after 100 cycles with excellent capacity retention of 102%. The hybrid bears superior rate capability with reversible capacity of 793.9 mAh/g at 2500 mA/g and Coulombic efficiency nearly 100%.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327752200079&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); EI; PubMed; 88; ARTICLE; 11; 10307-10318; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/153872]
专题	工学院
推荐引用方式 GB/T 7714	Mahmood, Nasir,Zhang, Chenzhen,Liu, Fei,et al. Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode[J]. acs nano,2013.
APA	Mahmood, Nasir,Zhang, Chenzhen,Liu, Fei,Zhu, Jinghan,&Hou, Yanglong.(2013).Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode.acs nano.
MLA	Mahmood, Nasir,et al."Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode".acs nano (2013).