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Li D, Gao N, Sheng R, Li F, Wang L, Gu Y, Sun Y. High-performance Zn-ion batteries constructed by in situ conversion of surface-oxidized vanadium nitride into Zn 3(OH) 2V 2O 7·2H 2O with oxygen defects. CrystEngComm 2023. [DOI: 10.1039/d2ce01241c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Surface-oxidized vanadium nitride transforms into Zn3V2O7(OH)2-based materials with oxygen defects by electrochemical conversion, which act as cathodes for high performance aqueous zinc ion batteries.
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Affiliation(s)
- Di Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ningze Gao
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Rui Sheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Feng Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lei Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yuanxiang Gu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yanhui Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Zhang D, Jiang B, Li C, Bian H, Liu Y, Bu Y, Zhang R, Zhang J. Facile Synthesis of Ni xCo 3-xS 4 Microspheres for High-Performance Supercapacitors and Alkaline Aqueous Rechargeable NiCo-Zn Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2994. [PMID: 36080031 PMCID: PMC9457657 DOI: 10.3390/nano12172994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/20/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
Electrochemical energy storage devices (EESDs) have caused widespread concern, ascribed to the increasing depletion of traditional fossil energy and environmental pollution. In recent years, nickel cobalt bimetallic sulfides have been regarded as the most attractive electrode materials for super-performance EESDs due to their relatively low cost and multiple electrochemical reaction sites. In this work, NiCo-bimetallic sulfide NixCo3-xS4 particles were synthesized in a mixed solvent system with different proportion of Ni and Co salts added. In order to improve the electrochemical performance of optimized Ni2.5Co0.5S4 electrode, the Ni2.5Co0.5S4 particles were annealed at 350 °C for 60 min (denoted as Ni2.5Co0.5S4-350), and the capacity and rate performance of Ni2.5Co0.5S4-350 was greatly improved. An aqueous NiCo-Zn battery was assembled by utilizing Ni2.5Co0.5S4-350 pressed onto Ni form as cathode and commercial Zn sheet as anode. The NiCo-Zn battery based on Ni2.5Co0.5S4-350 cathode electrode delivers a high specific capacity of 232 mAh g-1 at 1 A g-1 and satisfactory cycling performance (65% capacity retention after 1000 repeated cycles at 8 A g-1). The as-assembled NiCo-Zn battery deliver a high specific energy of 394.6 Wh kg-1 and long-term cycling ability. The results suggest that Ni2.5Co0.5S4-350 electrode has possible applications in the field of alkaline aqueous rechargeable electrochemical energy storage devices for supercapacitor and NiCo-Zn battery.
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Affiliation(s)
- Daojun Zhang
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Bei Jiang
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Chengxiang Li
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Hao Bian
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yang Liu
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yingping Bu
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Renchun Zhang
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Jingchao Zhang
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
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