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Ternary nanoarray electrode with corn-inspired hierarchical design for synergistic lithium storage
Yu, Jia1,2; Wang, Xi3; Chen, Shimou1; Liu, Xiaoyu1; Zhang, Suojiang1
2017
发表期刊NANO RESEARCH
ISSN1998-0124
卷号10期号:1页码:172-186
摘要

Single-component anode materials can barely satisfy the growing demand for next-generation Li-ion batteries with higher capacity and cyclability. Thus developing multi-component synergistic electrodes has become a critical issue. Herein, inspired by natural corn, a ternary hierarchical self-supported array design is proposed. Based on a sequential transformation route, Si/C-modified Co3O4 nanowire arrays are constructed on 3D Ni foams to form a binder-free integrated electrode. Specifically, an ionic liquid-assisted electrodeposition strategy is employed to prepare discrete ultrafine Si nanoparticles on nanoscale array substrates, which follow the Volmer-Weber island growth mode. In this corn-mimetic system, kernel-like Si nanoparticles and a husk-like carbon coating layer function as enhancing and protecting units, respectively, to improve the capacity and stability of the cobalt oxide basic unit. Taking advantage of a synergistic effect, the ternary nanoarray anode achieves a significant performance enhancement compared to pristine Co3O4, showing a special capacity as high as similar to 1,000 mAh center dot g(-1) at 100 mA center dot g(-1). By extending this corn-mimetic hierarchical array design to other basic, enhancing, and protecting units, new ideas for constructing synergistic nano-architectures for energy conversion and storage field are developed.

关键词Nanowire Array Cobalt Oxide Si Ionic Liquid Biomimetic Material Li-ion Battery
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1007/s12274-016-1276-6
收录类别SCI
语种英语
关键词[WOS]ION-BATTERY ANODES ; ELECTROCHEMICAL ENERGY-STORAGE ; HIGH-CAPACITY ; SILICON NANOPARTICLES ; PERFORMANCE ; CARBON ; GRAPHENE ; SI ; FABRICATION ; MECHANISM
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
项目资助者National Natural Science Foundation of China(21276257 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDA09010103) ; National Key Projects for Fundamental Research and Development of China(2016YFB0100104) ; 91534109 ; 91434203)
WOS记录号WOS:000390066000015
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21836
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China
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GB/T 7714
Yu, Jia,Wang, Xi,Chen, Shimou,et al. Ternary nanoarray electrode with corn-inspired hierarchical design for synergistic lithium storage[J]. NANO RESEARCH,2017,10(1):172-186.
APA Yu, Jia,Wang, Xi,Chen, Shimou,Liu, Xiaoyu,&Zhang, Suojiang.(2017).Ternary nanoarray electrode with corn-inspired hierarchical design for synergistic lithium storage.NANO RESEARCH,10(1),172-186.
MLA Yu, Jia,et al."Ternary nanoarray electrode with corn-inspired hierarchical design for synergistic lithium storage".NANO RESEARCH 10.1(2017):172-186.
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