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Confined Fe2VO4 subset of Nitrogen-Doped Carbon Nanowires with Internal Void Space for High-Rate and Ultrastable Potassium-Ion Storage

文献类型：期刊论文

作者Yang, Chao3,4,5; Lv, Fan6; Zhang, Yelong6; Wen, Jie3; Dong, Kang5; Su, Hai3; Lai, Feili7; Qian, Guoyu1; Wang, Wei6; Hilger, Andre5
刊名ADVANCED ENERGY MATERIALS
出版日期2019-10-30
页码12
ISSN号1614-6832
关键词anode materials electrochemical properties Fe2VO4 nanowires heterostructures potassium-ion batteries
DOI10.1002/aenm.201902674
英文摘要Developing low-cost, high-capacity, high-rate, and robust earth-abundant electrode materials for energy storage is critical for the practical and scalable application of advanced battery technologies. Herein, the first example of synthesizing 1D peapod-like bimetallic Fe2VO4 nanorods confined in N-doped carbon porous nanowires with internal void space (Fe2VO4 subset of NC nanopeapods) as a high-capacity and stable anode material for potassium-ion batteries (KIBs) is reported. The peapod-like Fe2VO4 subset of NC nanopeapod heterostructures with interior void space and external carbon shell efficiently prevent the aggregation of the active materials, facilitate fast transportation of electrons and ions, and accommodate volume variation during the cycling process, which substantially boosts the rate and cycling performance of Fe2VO4. The Fe2VO4 subset of NC electrode exhibits high reversible specific depotassiation capacity of 380 mAh g(-1) at 100 mA g(-1) after 60 cycles and remarkable rate capability as well as long cycling stability with a high capacity of 196 mAh g(-1) at 4 A g(-1) after 2300 cycles. The first-principles calculations reveal that Fe2VO4 subset of NC nanopeapods have high ionic/electronic conductivity characteristics and low diffusion barriers for K+-intercalation. This study opens up new way for investigating high-capacity metal oxide as high-rate and robust electrode materials for KIBs.
WOS关键词HIGH-PERFORMANCE ANODE ; CHARGE-TRANSFER ; NA-ION ; BATTERIES ; NANOTUBES ; FRAMEWORKS ; ELECTRODE ; BEHAVIOR
资助项目National Natural Science Foundation of China[51571151] ; National Natural Science Foundation of China[51701139] ; National Natural Science Foundation of China[51671143] ; National Natural Science Foundation of China[U1601216] ; Helmholtz Association ; German Research Foundation, DFG[MA 5039/4-1] ; China Scholarship Council (CSC)
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000493163400001
资助机构National Natural Science Foundation of China ; Helmholtz Association ; German Research Foundation, DFG ; China Scholarship Council (CSC)
源URL[http://ir.ipe.ac.cn/handle/122111/39034]  
专题中国科学院过程工程研究所
通讯作者Xu, Yunhua; Zhu, Yizhou; Chen, Yanan
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Joint Sch Natl Univ Singapore & Tianjin Univ, Int Campus Tianjin Univ, Fuzhou 350207, Fujian, Peoples R China
3.Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol,Minist Educ, Tianjin 300072, Peoples R China
4.Tech Univ Berlin, Inst Mat Sci & Technol, Str 17 Juni, D-10623 Berlin, Germany
5.Helmholtz Zentrum Berlin Mat & Energie, Inst Appl Mat, Hahn Meitner Pl 1, D-14109 Berlin, Germany
6.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
7.Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China
8.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
推荐引用方式
GB/T 7714		 Yang, Chao,Lv, Fan,Zhang, Yelong,et al. Confined Fe2VO4 subset of Nitrogen-Doped Carbon Nanowires with Internal Void Space for High-Rate and Ultrastable Potassium-Ion Storage[J]. ADVANCED ENERGY MATERIALS,2019:12.
APA Yang, Chao.,Lv, Fan.,Zhang, Yelong.,Wen, Jie.,Dong, Kang.,...&Chen, Yanan.(2019).Confined Fe2VO4 subset of Nitrogen-Doped Carbon Nanowires with Internal Void Space for High-Rate and Ultrastable Potassium-Ion Storage.ADVANCED ENERGY MATERIALS,12.
MLA Yang, Chao,et al."Confined Fe2VO4 subset of Nitrogen-Doped Carbon Nanowires with Internal Void Space for High-Rate and Ultrastable Potassium-Ion Storage".ADVANCED ENERGY MATERIALS (2019):12.

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来源：过程工程研究所

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