Controlled synthesis of Fe3O4@C@manganese oxides (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres and their superior lithium storage properties

doi:10.1016/j.electacta.2020.135739

	Controlled synthesis of Fe3O4@C@manganese oxides (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres and their superior lithium storage properties
	Wang, Yong 1; Rao, Shun 1; Mao, Peiyuan 1; Zhang, Fanchao 1; Xiao, Pandeng 1; Peng, Lian 2; Zhu, Qingshan 2
刊名	ELECTROCHIMICA ACTA
	2020-03-20
卷号	337 页码:10
关键词	Controlled synthesis Phase state Hollow structures Manganese oxides Lithium-ion batteries
ISSN号	0013-4686
DOI	10.1016/j.electacta.2020.135739
英文摘要	We develop a facile approach to controlled-synthesize Fe3O4@C@MnOx (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres by using Fe3O4@C hollow nanospheres as the template. By simply adjusting the calcination temperature and time, three kinds of Fe3O4 @C@MnOx (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres with different phase states of manganese oxides external layer are tailored. In virtue of the synergistic effect of Fe3O4 hollow nanostructures as supporters, the conductive carbon layer and MnOx external layer, the three hollow nanocomposites exhibit excellent lithium storage properties. At 0.1Ag(-1), Fe3O4@C@MnO2, Fe3O4@C@Mn3O4 and Fe3O4@C@MnO hierarchical hollow nanospheres still have specific capacities of 708, 833 and 670mAhg(-1) after 150 cycles, respectively. Even at 0.5Ag(-1), the reversible capacity of the three hollow nanocomposites remains 609, 780 and 523mAhg(-1) after 500 cycles, respectively. Interestingly, Fe3O4@C@Mn3O4 hierarchical hollow nanospheres possess more outstanding Li storage properties than Fe3O4@C@MnO2 and Fe3O4@C@MnO hierarchical hollow nanospheres because the former have more stable Mn 3 0 4 external layer during intensive cycles. The rational design of the phase state for Fe3O4@C@MnOx (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres can provide a novel synthetic strategy for energy storage nanomaterials with optimized performances. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	Open Research Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2019-D-02] ; Beijing Municipal Natural Science Foundation[2152010]
WOS关键词	HIGH-PERFORMANCE ANODE ; FACILE PREPARATION ; IN-SITU ; ELECTROCHEMICAL PERFORMANCE ; GENERAL-SYNTHESIS ; GRAPHENE ; FE3O4 ; BATTERY ; MICROSPHERES ; NANOSHEETS
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000521531700012
资助机构	Open Research Fund of State Key Laboratory of Multiphase Complex Systems ; Beijing Municipal Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39913]
专题	中国科学院过程工程研究所
通讯作者	Wang, Yong; Zhu, Qingshan
作者单位	1.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yong,Rao, Shun,Mao, Peiyuan,et al. Controlled synthesis of Fe3O4@C@manganese oxides (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres and their superior lithium storage properties[J]. ELECTROCHIMICA ACTA,2020,337:10.
APA	Wang, Yong.,Rao, Shun.,Mao, Peiyuan.,Zhang, Fanchao.,Xiao, Pandeng.,...&Zhu, Qingshan.(2020).Controlled synthesis of Fe3O4@C@manganese oxides (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres and their superior lithium storage properties.ELECTROCHIMICA ACTA,337,10.
MLA	Wang, Yong,et al."Controlled synthesis of Fe3O4@C@manganese oxides (MnO2, Mn3O4 and MnO) hierarchical hollow nanospheres and their superior lithium storage properties".ELECTROCHIMICA ACTA 337(2020):10.