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Status | 已發表Published |
Controllable Synthesis of Co3+-Enriched Anisotropy Co3O4Hexagonal Prisms toward Enhanced Lithium Storage | |
Zhong, Yun Lei1,2; Yu, Zhen Jiang3; Wang, Li Tong1,2; Liang, Tao1,2; Zhang, Xuetong4; Hong, Guo1,2 | |
2020-05-15 | |
Source Publication | ACS Applied Energy Materials |
ISSN | 2574-0962 |
Volume | 3Issue:6Pages:5856-5866 |
Abstract | Lithium ion batteries are the most feasible energy storage technology for modern society. However, the electrochemical performance of commercial products is not satisfactory, which severely limits the development of electrode materials. An urgent call to balance the demands of high surface area, rich site activity, enhanced electrical conductivity, and controlled electrochemical stability becomes even more desired. In this work, we report a Co3O4 hexagonal prism (CHP) with a unique anisotropy structure as the anode material for lithium ion storage. Specifically, the CHP has a solid microframework on the six sidewalls and porous nanotunnels on the top and bottom surfaces, which not only enhances lithium ion storage and transmission but also provides sufficient electrochemical stability (i.e., minimize volume expansion). Additionally, it has much higher Co3+ contents and oxygen vacancies on all the surfaces which contribute to rich site activity and enhanced electrical conductivity. Based on these, the anisotropy CHPs show a remarkably higher initial capacity, excellent rate capability, and unique cycling stability than those of Co3O4 nanowires and commercial Co3O4 microparticles. The resulting CHP electrodes demonstrate an excellent reversible capacity of 800 mA h g-1 after 800 cycles at 1 A g-1. A further mechanistic study reveals the relationship between the material properties and the electrochemical performances, which can be mainly attributed to the synergistic effect of the anisotropy architecture, the surface pseudocapacitance, and the enriched Co3+ on the material surface. This synthetic strategy provides insights for the development of high-performance anodes. |
Keyword | Anisotropy Hexagonal Prism co3+enriched Co3o4 Micro-nano Hierarchical Structures Oxygen Vacancy Surface Pseudocapacitance |
DOI | 10.1021/acsaem.0c00774 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science |
WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
WOS ID | WOS:000543715100084 |
Publisher | AMER CHEMICAL SOC |
Scopus ID | 2-s2.0-85087789717 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | Faculty of Science and Technology INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING DEPARTMENT OF PHYSICS AND CHEMISTRY |
Corresponding Author | Hong, Guo |
Affiliation | 1.Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, 999078, Macao 2.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, 999078, Macao 3.Miit Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China 4.Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China |
First Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING; Faculty of Science and Technology |
Corresponding Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING; Faculty of Science and Technology |
Recommended Citation GB/T 7714 | Zhong, Yun Lei,Yu, Zhen Jiang,Wang, Li Tong,et al. Controllable Synthesis of Co3+-Enriched Anisotropy Co3O4Hexagonal Prisms toward Enhanced Lithium Storage[J]. ACS Applied Energy Materials, 2020, 3(6), 5856-5866. |
APA | Zhong, Yun Lei., Yu, Zhen Jiang., Wang, Li Tong., Liang, Tao., Zhang, Xuetong., & Hong, Guo (2020). Controllable Synthesis of Co3+-Enriched Anisotropy Co3O4Hexagonal Prisms toward Enhanced Lithium Storage. ACS Applied Energy Materials, 3(6), 5856-5866. |
MLA | Zhong, Yun Lei,et al."Controllable Synthesis of Co3+-Enriched Anisotropy Co3O4Hexagonal Prisms toward Enhanced Lithium Storage".ACS Applied Energy Materials 3.6(2020):5856-5866. |
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