Facile template-free synthesis of 3D porous MnO/C microspheres with   controllable pore size for high-performance lithium-ion battery anodes

doi:10.1039/c4ta01587h

CORC > 北京大学 > 化学与分子工程学院

	Facile template-free synthesis of 3D porous MnO/C microspheres with controllable pore size for high-performance lithium-ion battery anodes
	Su, Kai ; Wang, Chao ; Nie, Honggang ; Guan, Yan ; Liu, Feng ; Chen, Jitao
刊名	journal of materials chemistry a
	2014
关键词	STORAGE PROPERTIES ELECTRODE MATERIALS LI FABRICATION CHALLENGES TITANIA HYBRID ARRAYS TIO2
DOI	10.1039/c4ta01587h
英文摘要	3D porous MnO/C anode materials with controllable pore size are rationally designed and synthesized by a facile template-free strategy. The MnxZn1-xCO3 (x = 1, 2/3, 1/2 and 1/3) precursors were prepared by an ultrasonic-assisted co-precipitation method, and then heated with glucose in a reducing atmosphere to obtain a series of MnO/C microspheres through topochemical conversion. These MnO/C microspheres consist of nanosized primary particles and have interconnected pore architectures with high specific surface areas of up to 111.4 m(2) g(-1). Adjusting the Zn/Mn molar ratio of MnxZn1-xCO3 can easily tune the pore size of the MnO/C materials from 14.9 nm to 31.8 nm. Electrochemical performances of the MnO/C materials were found to be strongly correlated with their porous structures. The MnO/C material with optimized pore size exhibits a high reversible capacity (846 mA h g(-1) at 100 mA g(-1)), superior rate capability (406 mA h g(-1) at 3200 mA g(-1)) and excellent cycling stability. This strategy can be extended to prepare other candidate electrode materials.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000337856900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; SCI(E); EI; 30; ARTICLE; liufeng@pku.edu.cn; chenjitao@pku.edu.cn; 26; 10000-10006; 2
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/210679]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Su, Kai,Wang, Chao,Nie, Honggang,et al. Facile template-free synthesis of 3D porous MnO/C microspheres with controllable pore size for high-performance lithium-ion battery anodes[J]. journal of materials chemistry a,2014.
APA	Su, Kai,Wang, Chao,Nie, Honggang,Guan, Yan,Liu, Feng,&Chen, Jitao.(2014).Facile template-free synthesis of 3D porous MnO/C microspheres with controllable pore size for high-performance lithium-ion battery anodes.journal of materials chemistry a.
MLA	Su, Kai,et al."Facile template-free synthesis of 3D porous MnO/C microspheres with controllable pore size for high-performance lithium-ion battery anodes".journal of materials chemistry a (2014).