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http://hdl.handle.net/1942/42224
Title: | Abundant Lithiophilic VO2/V8C7 Heterostructures Boost Charge Transfer toward High-Rate Lithium Storage | Authors: | Gao, Yinhong Nan, Xu Zhao, Rong Sun, Bing Xu, Wenli Li , Qiqi Cong, Ye Li , Yanjun Lv, Wei Zhang, Qin Li, Xuanke YANG, Nianjun |
Issue Date: | 2023 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | ADVANCED FUNCTIONAL MATERIALS, | Status: | Early view | Abstract: | The construction of a heterogeneous structure on an electrode can enhance its absorption energy, thereby improving ionic diffusion and reaction kinetics. Herein, hyperdispersed VO2/V8C7 nano-heterostructures anchored on carbon nanofibers (VO2/V8C7@CNF), which are further utilized as a lithium anode are successfully developed. The self-supported VO2/V8C7@CNF electrode features a synergistic effect, resulting from its well-dispersed nano-heterostructure, induced hetero-interfacial electric field, and conspicuous lithiophilicity. This anode thus facilitates rapid Li+ ions diffusion and charge transfer, resulting in high-rate performance and uniform Li deposition. It exhibits a reversible specific capacity of as high as 674.8 mA h g(-1) at a current density of 0.1 A g(-1) and maintains a high-rate capability of 205.3 mA h g(-1) at a current density of as high as 5.0 A g(-1) even after undergoing 1000 charge/discharge cycles. The Li-ion nucleation overpotential on this anode is significantly reduced to 27 mV. The hyperdispersed nano-heterostructure strategy offers a universal blueprint for the fabrication of high-performance anodes not only for lithium and other batteries. | Notes: | Zhang, Q; Li, XK (corresponding author), Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China.; Yang, NJ (corresponding author), Hasselt Univ, Dept Chem, Agoralaan 1 Buidling D, B-3590 Diepenbeek, Belgium.; Yang, NJ (corresponding author), Hasselt Univ, IMO IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. zhangqin627@wust.edu.cn; lixuanke@wust.edu.cn; nianjun.yang@uhasselt.be |
Keywords: | high-rate capacity;interfacial electronic field;lithiophilic;lithium anode;nano-heterostructures | Document URI: | http://hdl.handle.net/1942/42224 | ISSN: | 1616-301X | e-ISSN: | 1616-3028 | DOI: | 10.1002/adfm.202310117 | ISI #: | 001129944200001 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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Abundant Lithiophilic VO2_V8C7 Heterostructures Boost .pdf Restricted Access | Early view | 2.59 MB | Adobe PDF | View/Open Request a copy |
gW4BGzioiS3s_CEvhCZSAdzMyYA==.pdf | Peer-reviewed author version | 4.23 MB | Adobe PDF | View/Open |
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