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Nature-Inspired 2D-Mosaic 3D-Gradient Mesoporous Framework: Bimetal Oxide Dual-Composite Strategy toward Ultrastable and High-Capacity Lithium Storage
Yu, Jia1,2; Wang, Yanlei1; Mou, Lihui1,2; Fang, Daliang1,2; Chen, Shimou1,2; Zhang, Suojiang1,2
2018-02-01
发表期刊ACS NANO
ISSN1936-0851
卷号12期号:2页码:2035-2047
摘要In allusion to traditional transition-metal oxide (TMO) anodes for lithium-ion batteries, which face severe volume variation and poor conductivity, herein a bimetal oxide dual-composite strategy based on two-dimensional (2D)-mosaic three-dimensional (3D)-gradient design is proposed. Inspired by natural mosaic dominance phenomena, Zn1-xCoxO/ZnCo2O4 2D-mosaic-hybrid mesoporous ultrathin nanosheets serve as building blocks to assemble into a 3D Zn-Co hierarchical framework. Moreover, a series of derivative frameworks with high evolution are controllably synthesized, based on which a facile one-pot synthesis process can be developed. From a component-composite perspective, both Zn1-xCoxO and ZnCo2O4 provide superior conductivity due to bimetal doping effect, which is verified by density functional theory calculations. From a structure-composite perspective, 2D-mosaic-hybrid mode gives rise to ladder-type buffering and electrochemical synergistic effect, thus realizing mutual stabilization and activation between the mosaic pair, especially for Zn1-xCoxO with higher capacity yet higher expansion. Moreover, the inside-out Zn-Co concentration gradient in 3D framework and rich oxygen vacancies further greatly enhance Li storage capability and stability. As a result, a high reversible capacity (1010 mA h g(-1)) and areal capacity (1.48 mA h cm(-2)) are attained, while ultrastable cyclability is obtained during high-rate and long-term cycles, rending great potential of our 2D-mosaic 3D-gradient design together with facile synthesis.
关键词Bimetal Oxide Dual-composite Strategy Zn1-xcoxo/znco2o4 2d-mosaic Hybrid Nanosheet 3d Concentration-gradient Framework Morphology And Structure Evolution Lithium-ion Battery
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acsnano.8b00168
收录类别SCI
语种英语
关键词[WOS]ION BATTERY ; OXYGEN VACANCIES ; ENERGY-STORAGE ; ZNO NANOSTRUCTURES ; ANODE MATERIALS ; PERFORMANCE ; NANOSHEETS ; ZNCO2O4 ; ARRAYS ; CO3O4
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
项目资助者"Strategic Priority Research Program" of the Chinese Academy of Sciences(XDA09010103) ; National Natural Science Foundation of China(91534109 ; National Key Projects for Fundamental Research and Development of China(2016YFB0100100) ; Beijing Natural Science Foundation(2184124) ; 91434203)
WOS记录号WOS:000426615600117
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24103
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Beijing Key Lab Ion Liquid Clean Proc, Inst Proc Engn, Key Lab Green Proc & Engn,State Key Lab Multiphas, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yu, Jia,Wang, Yanlei,Mou, Lihui,et al. Nature-Inspired 2D-Mosaic 3D-Gradient Mesoporous Framework: Bimetal Oxide Dual-Composite Strategy toward Ultrastable and High-Capacity Lithium Storage[J]. ACS NANO,2018,12(2):2035-2047.
APA Yu, Jia,Wang, Yanlei,Mou, Lihui,Fang, Daliang,Chen, Shimou,&Zhang, Suojiang.(2018).Nature-Inspired 2D-Mosaic 3D-Gradient Mesoporous Framework: Bimetal Oxide Dual-Composite Strategy toward Ultrastable and High-Capacity Lithium Storage.ACS NANO,12(2),2035-2047.
MLA Yu, Jia,et al."Nature-Inspired 2D-Mosaic 3D-Gradient Mesoporous Framework: Bimetal Oxide Dual-Composite Strategy toward Ultrastable and High-Capacity Lithium Storage".ACS NANO 12.2(2018):2035-2047.
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