Universal Source-Template Route to Metal Selenides Implanting on 3D Carbon Nanoarchitecture: Cu2?xSe@3D-CN with Se?C Bonding for Advanced Na Storage |
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| Authors: | Jun Yuan Biao Yu Duo Pan Xiang Hu Junxiang Chen Mujtaba Aminua Yangjie Liu LiangMei Sheng Yuhua Chen Yongmin Wu Hongbing Zhan Zhenhai Wen |
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| Affiliation: | 1. College of Materials Science and Engineering. Fuzhou University, Fuzhou, 350108 P. R. China
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 P. R. China;2. CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 P. R. China;3. State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power Sources, 2965 Dongchuan Road, Shanghai, 200245 P.R. China;4. College of Materials Science and Engineering. Fuzhou University, Fuzhou, 350108 P. R. China |
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| Abstract: | The development of high-performance sodium ion batteries (SIBs) is heavily relied on the exploration of the appropriate electrode material for Na+ storage, which ought to feature merits of high capacity, easy-to-handle synthesis, high conductivity, expedite mass transportation, and stable structure upon charging–discharging cycle. Herein, a universal source-template method is reported to synthesize a variety of transition metal (e.g., V, Sb, W, Zn, Fe, Co, Ni, and Cu) selenides implanting on N doped 3D carbon nanoarchitecture hybrids (MmSen@3D-CN) with powerful Se? C bonding rivet. Benefiting from the superior architecture and potent Se? C bonding between Cu2?xSe and N-doped 3D carbon (3D-CN), the Cu2?xSe@3D-CN nanohybrids, as anode of SIBs, show high capacity, high-rate capability, and long-cycle durability, which can deliver a reversible capacity of as high as 386 mAh g?1, retain 219 mAh g?1 even at 10 A g?1, and run durably over thousands of charging–discharging cycles. The Cu2?xSe@3D-CN as anode is also evaluated by developing a full SIB by coupling with the Na3V2(PO4)3 cathode, which can deliver high energy density and show excellent stability, shedding light on its potential in practical application. |
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| Keywords: | Cu2?xSe@3D-CN metal selenides nanoarchetectures Se?C bonding sodium ion storage universal synthesis route |
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