Mn0.5Co0.5Fe2O4 nanoparticles highly dispersed in porous carbon microspheres as high performance anode materials in Li-ion batteries
文献类型：期刊论文
| 作者 | Zhang, Zailei1; Ren, Wenfeng1; Wang, Yanhong1; Yang, Jun1; Tan, Qiangqiang1; Zhong, Ziyi2; Su, Fabing1 |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2014 |
| 卷号 | 6期号:12页码:6805-6811 |
| 关键词 | LITHIUM STORAGE PROPERTIES ELECTROCHEMICAL PERFORMANCE HARD CARBON REVERSIBLE CAPACITY RATE CAPABILITIES FACILE SYNTHESIS CNT BACKBONE NANOCOMPOSITES NANOSHEETS GRAPHENE |
| ISSN号 | 2040-3364 |
| 其他题名 | Nanoscale |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | LITHIUM STORAGE PROPERTIES ; ELECTROCHEMICAL PERFORMANCE ; HARD CARBON ; REVERSIBLE CAPACITY ; RATE CAPABILITIES ; FACILE SYNTHESIS ; CNT BACKBONE ; NANOCOMPOSITES ; NANOSHEETS ; GRAPHENE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000337143900070 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11044]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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