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Huang Z, Chen Q, Ma X, Yu G, Tao K, Han L. Rapid Amorphization in MOF/Metal Selenite Nanocomposites for Enhanced Capacity in Supercapacitors. Inorg Chem 2023; 62:147-159. [PMID: 36565286 DOI: 10.1021/acs.inorgchem.2c03093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
MOF/inorganic nanocomposites combine the advantages of each component. Herein, two MOF/metal selenite nanocomposites, Co-NH2-BDC/CoSeO3·H2O and Co-BDC/CoSeO3·H2O, are prepared on nickel foam through a facile two-step hydrothermal method, which inherit the 2D morphology and porosity properties of their MOF precursors. Furthermore, during the electrochemical activation process, the crystallized nanocomposites can easily transform into amorphous structures in a short time of 20 min in the presence of an electric field, similar to CoSeO3·H2O. Due to amorphization, the electrochemical performance of the two nanocomposites is much enhanced relative to that of their MOF precursors. Specifically, the areal capacitances of Co-NH2-BDC/CoSeO3·H2O and Co-BDC/CoSeO3·H2O are 5.35 and 10.65 F·cm-2 at 2 mA·cm-2, respectively. The assembled asymmetric supercapacitor (ASC) using Co-NH2-BDC/CoSeO3·H2O as positive electrodes delivers an energy density of 0.207 mWh·cm-2 at a power density of 0.799 mW·cm-2 with outstanding cycling stability (93% capacity retention after 5000 cycles). Using Co-BDC/CoSeO3·H2O as positive electrodes, the ASC can reach a high energy density of 0.483 mWh·cm-2 at a power density of 0.741 mW·cm-2 and 84% capacity retention after 5000 cycles. This work provides an efficient strategy for constructing MOF/metal selenite nanocomposites for energy storage and conversion.
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Affiliation(s)
- Zihao Huang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, China
| | - Qihang Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, China
| | - Xuechun Ma
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, China
| | - Gaigai Yu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, China
| | - Kai Tao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, China
| | - Lei Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang315211, 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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Wan L, Jiang T, Zhang Y, Chen J, Xie M, Du C. 1D-on-1D core-shell cobalt iron selenide @ cobalt nickel carbonate hydroxide hybrid nanowire arrays as advanced battery-type supercapacitor electrode. J Colloid Interface Sci 2022; 621:149-159. [PMID: 35461130 DOI: 10.1016/j.jcis.2022.04.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/27/2022] [Accepted: 04/11/2022] [Indexed: 12/15/2022]
Abstract
Sluggish kinetics and poor structural stability are two main obstacles hampering the exploration of transition metal selenides (TMSs) for supercapacitor. Developing a reasonable core-shell heterostructure with unique morphology is an effective approach to resolve these issues. Herein, a core-shell cobalt iron selenide (CoFe2Se4) @ cobalt nickel carbonate hydroxide (CoNi-CH) heterostructure is directly fabricated on carbon cloth via an electrodeposition method followed by a hydrothermal reaction. In this well-defined heterostructure, one-dimensional (1D) CoFe2Se4 nanowires function as the cores and CoNi-CH nanowires as the shells, which combines the merits of highly conductive CoFe2Se4 for rapid electron transfer and highly electroactive CoNi-CH for multiple redox reactions. Further, the intimate interaction between CoNi-CH and CoFe2Se4 realizes large surface area with hierarchical network and generates rich heterointerfaces with modified the electronic structure. By virtue of its facile 1D-on-1D nanoarchitecture and synergistic effect, the CoFe2Se4@CoNi-CH electrode delivers a increased specific capacity of 218.6 mAh g-1 at 1 A-1 and enhanced rate capability (65.5% at 20 A g-1) compared with pure CoFe2Se4 and CoNi-CH. Besides, a hybrid supercapacitor is established by coupling CoFe2Se4@CoNi-CH cathode and porous carbon anode, which enjoys a maximum energy density of 67.3 Wh kg-1 at 765.9 W kg-1 and prominent durability with 85.4% of capacity retention over 20,000 cycles.
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Affiliation(s)
- Liu Wan
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China
| | - Tao Jiang
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China; College of Materials and Chemical Engineering, China Three Gorges University, Yichang 443002, China
| | - Yan Zhang
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China
| | - Jian Chen
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China
| | - Mingjiang Xie
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China
| | - Cheng Du
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 438000, China.
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