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Mn0.5Co0.5Fe2O4 nanoparticles highly dispersed in porous carbon microspheres as high performance anode materials in Li-ion batteries
Alternative TitleNanoscale
Zhang, Zailei1; Ren, Wenfeng1; Wang, Yanhong1; Yang, Jun1; Tan, Qiangqiang1; Zhong, Ziyi2; Su, Fabing1
2014
Source PublicationNANOSCALE
ISSN2040-3364
Volume6Issue:12Pages:6805-6811
AbstractWe report the preparation of Mn0.5Co0.5Fe2O4 (MCFO) nanoparticles highly dispersed within porous carbon microspheres as anodes for Li-ion batteries. In situ growth of MCFO nanoparticles (5-20 nm) on the surface of carbon black (CB) and graphitized carbon black (GCB) nanoparticles was conducted via a hydrothermal method to form MCFO-CB and MCFO-GCB composites, respectively, which were employed as building blocks to assemble MCFO-CB and MCFO-GCB porous microspheres (PM) with a size of 5-30 mu m by the spray drying technique using sucrose as a binder, and followed by carbonization in N-2 (labeled as MCFO-CB-PM and MCFO-GCB-PM, respectively). Compared with the pure MCFO, MCFO-CB, and MCFO-GCB, both MCFO-CB-PM and MCFO-GCB-PM showed a significantly improved electrochemical performance. This is attributed to their unique porous structure, in which, the abundant pores promote the diffusion of Li-ion and electrolyte solution, the microspherical morphology enhances the electrode-electrolyte contact, and the carbon substrates from CB (and GCB) and sucrose substantially prevent the aggregation of MCFO nanoparticles and buffer the volume change. Particularly, MCFO-GCB-PM exhibits the best rate performance and excellent cycling stability because of the high graphitization degree of GCB. This work opens up an effective route for large scale fabrication of metal oxide/carbon porous microspheres as anode materials for potential applications in the new generation of Li-ion batteries.; We report the preparation of Mn0.5Co0.5Fe2O4 (MCFO) nanoparticles highly dispersed within porous carbon microspheres as anodes for Li-ion batteries. In situ growth of MCFO nanoparticles (5-20 nm) on the surface of carbon black (CB) and graphitized carbon black (GCB) nanoparticles was conducted via a hydrothermal method to form MCFO-CB and MCFO-GCB composites, respectively, which were employed as building blocks to assemble MCFO-CB and MCFO-GCB porous microspheres (PM) with a size of 5-30 mu m by the spray drying technique using sucrose as a binder, and followed by carbonization in N-2 (labeled as MCFO-CB-PM and MCFO-GCB-PM, respectively). Compared with the pure MCFO, MCFO-CB, and MCFO-GCB, both MCFO-CB-PM and MCFO-GCB-PM showed a significantly improved electrochemical performance. This is attributed to their unique porous structure, in which, the abundant pores promote the diffusion of Li-ion and electrolyte solution, the microspherical morphology enhances the electrode-electrolyte contact, and the carbon substrates from CB (and GCB) and sucrose substantially prevent the aggregation of MCFO nanoparticles and buffer the volume change. Particularly, MCFO-GCB-PM exhibits the best rate performance and excellent cycling stability because of the high graphitization degree of GCB. This work opens up an effective route for large scale fabrication of metal oxide/carbon porous microspheres as anode materials for potential applications in the new generation of Li-ion batteries.
KeywordLithium Storage Properties Electrochemical Performance Hard Carbon Reversible Capacity Rate Capabilities Facile Synthesis Cnt Backbone Nanocomposites Nanosheets Graphene
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c4nr00394b
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLITHIUM STORAGE PROPERTIES ; ELECTROCHEMICAL PERFORMANCE ; HARD CARBON ; REVERSIBLE CAPACITY ; RATE CAPABILITIES ; FACILE SYNTHESIS ; CNT BACKBONE ; NANOCOMPOSITES ; NANOSHEETS ; GRAPHENE
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000337143900070
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11044
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore
Recommended Citation
GB/T 7714
Zhang, Zailei,Ren, Wenfeng,Wang, Yanhong,et al. Mn0.5Co0.5Fe2O4 nanoparticles highly dispersed in porous carbon microspheres as high performance anode materials in Li-ion batteries[J]. NANOSCALE,2014,6(12):6805-6811.
APA Zhang, Zailei.,Ren, Wenfeng.,Wang, Yanhong.,Yang, Jun.,Tan, Qiangqiang.,...&Su, Fabing.(2014).Mn0.5Co0.5Fe2O4 nanoparticles highly dispersed in porous carbon microspheres as high performance anode materials in Li-ion batteries.NANOSCALE,6(12),6805-6811.
MLA Zhang, Zailei,et al."Mn0.5Co0.5Fe2O4 nanoparticles highly dispersed in porous carbon microspheres as high performance anode materials in Li-ion batteries".NANOSCALE 6.12(2014):6805-6811.
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