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Ali Sheikh Z, Vikraman D, Faizan M, Kim H, Aftab S, F Shaikh S, Nam KW, Jung J, Hussain S, Kim DK. Formulation of Hierarchical Nanowire-Structured CoNiO 2 and MoS 2/CoNiO 2 Hybrid Composite Electrodes for Supercapacitor Applications. ACS Appl Mater Interfaces 2024; 16:10104-10115. [PMID: 38361321 DOI: 10.1021/acsami.3c17201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Hierarchical porous nanowire-like MoS2/CoNiO2 nanohybrids were synthesized via the hydrothermal process. CoNiO2 nanowires were selected due to the edge site, high surface/volume ratio, and superior electrochemical characteristics as the porous backbone for decoration of layered MoS2 nanoflakes to construct innovative structure hierarchical three-dimensional (3D) porous NWs MoS2/CoNiO2 hybrids with excellent charge accumulation and efficient ion transport capabilities. Physicochemical analyses were conducted on the developed hybrid composite, revealing conclusive evidence that the CoNiO2 nanowires have been securely anchored onto the surface of the MoS2 nanoflake array. The electrochemical results strongly proved the benefit of the hierarchical 3D porous MoS2/CoNiO2 hybrid structure for the charge storage kinetics. The synergistic characteristics arising from the MoS2/CoNiO2 composite yielded a notably high specific capacitance of 1340 F/g at a current density of 0.5 A/g. Furthermore, the material exhibited sustained cycling stability, retaining 95.6% of its initial capacitance after 10 000 long cycles. The asymmetric device comprising porous MoS2/CoNiO2//activated carbon encompassed outstanding energy density (93.02 Wh/kg at 0.85 kW/kg) and cycling stability (94.1% capacitance retention after 10 000 cycles). Additionally, the successful illumination of light-emitting diodes underscores the significant potential of the synthesized MoS2/CoNiO2 (2D/1D) hybrid for practical high-energy storage applications.
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Affiliation(s)
- Zulfqar Ali Sheikh
- Department of Electrical Engineering and Convergence Engineering for Intelligent Drone, Sejong University, Seoul 05006, Korea
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University─Seoul, Seoul 04620, Korea
| | - Muhammad Faizan
- Department of Energy & Materials Engineering, Dongguk University─Seoul, Seoul 04620, Korea
| | - Honggyun Kim
- Department of Semiconductor Systems Engineering, Sejong University, Seoul 05006, Korea
| | - Sikandar Aftab
- Department of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, Korea
| | - Shoyebmohamad F Shaikh
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Kyung-Wan Nam
- Department of Energy & Materials Engineering, Dongguk University─Seoul, Seoul 04620, Korea
| | - Jongwan Jung
- Hybrid Materials Center (HMC) and Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea
| | - Sajjad Hussain
- Hybrid Materials Center (HMC) and Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea
| | - Deok-Kee Kim
- Department of Electrical Engineering and Convergence Engineering for Intelligent Drone, Sejong University, Seoul 05006, Korea
- Department of Semiconductor Systems Engineering, Sejong University, Seoul 05006, Korea
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Zhang J, Chen Z, Wang Y, Yan X, Zhou Z, Lv H. All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO 2@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe 2O 3. Nanoscale Res Lett 2019; 14:87. [PMID: 30868362 PMCID: PMC6419639 DOI: 10.1186/s11671-019-2910-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
High electrochemical performance of asymmetric supercapacitor (ASC) depends on exquisite nanostructure design and synthesis of electrodes, including structural controllable design and synthesis of high theoretical performance materials and nanocomposite materials. Herein, a template-free hierarchical core-shell nanostructure of CoNiO2@NiAl-layered double hydroxide (NiAl-LDH) and α-Fe2O3 with a hollow spherical structure composed of nanoparticles are successfully prepared. The CoNiO2@NiAl-LDH as the cathode electrode and the hollow spherical α-Fe2O3 as the anode electrode of the ASC devices exhibit superior electrochemical performance. The gel of polyvinyl alcohol (PVA) and KOH acts as the solid electrolyte and the separator to assemble into the all-solid-state flexible ASC devices. Two of the CoNiO2@NiAl-LDH//α-Fe2O3 ASC devices in series are fabricated to meet the voltage requirement of mobile energy equipment, which exhibit a maximum energy density of 65.68 Wh kg-1 at the power density of 369.45 W kg-1. Interestingly, in addition to many advantages that the solid electrolyte in ASC devices already have, we find that it can be an alternative way of solving the problem of iron oxide cycling performance, and of course it can also be used as a reference for other materials with poor cycling performance.
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Affiliation(s)
- Jijun Zhang
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
| | - Zexiang Chen
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
| | - Yan Wang
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
| | - Xinyu Yan
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
| | - Zhiyu Zhou
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
| | - Huifang Lv
- School of Optoelectronic Science And Engineering, University of Electronic Science and Technology of China, North Jianshe Road 4, Chengdu, 610054 China
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Ai Y, Geng X, Lou Z, Wang ZM, Shen G. Rational Synthesis of Branched CoMoO4@ CoNiO2 Core/Shell Nanowire Arrays for All-Solid-State Supercapacitors with Improved Performance. ACS Appl Mater Interfaces 2015; 7:24204-24211. [PMID: 26465975 DOI: 10.1021/acsami.5b07599] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Effectively composite materials with optimized structures exhibited promising potential in continuing improving the electrochemical performances of supercapacitors in the past few years. Here, we proposed a rational design of branched CoMoO4@CoNiO2 core/shell nanowire arrays on Ni foam by two steps of hydrothermal processing. Owing to the high activity of the scaffold-like CoMoO4 nanowires and the well-defined CoNiO2 nanoneedles, the three-dimensional (3D) electrode architectures achieved remarkable electrochemical performances with high areal specific capacitance (5.31 F/cm(2) at 5 mA/cm(2)) and superior cycling stability(159% of the original specific capacitance, i.e., 95.7% of the maximum retained after 5000 cycles at 30 mA/cm(2)). The all-solid-state asymmetric supercapacitors composed of such electrode and activated carbon (AC) exhibited an areal specific capacitance of 1.54 F/cm(2) at 10 mA/cm(2) and a rate capability (59.75 Wh/kg at a 1464 W/kg) comparable with Li-ion batteries. It also showed an excellent cycling stability with no capacitance attenuation after 50000 cycles at 100 mA/cm(2). After rapid charging (1 s), such supercapacitors in series could lighten a red LED for a long time and drive a mini motor effectively, demonstrating advances in energy storage, scalable integrated applications, and promising commercial potential.
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Affiliation(s)
- Yuanfei Ai
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
- State Key Laboratory of Superlattices and Microstructures, Institution of Semiconductors, Chinese Academy of Science , Beijing 100083, China
| | - Xuewen Geng
- State Key Laboratory of Superlattices and Microstructures, Institution of Semiconductors, Chinese Academy of Science , Beijing 100083, China
| | - Zheng Lou
- State Key Laboratory of Superlattices and Microstructures, Institution of Semiconductors, Chinese Academy of Science , Beijing 100083, China
| | - Zhiming M Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
| | - Guozhen Shen
- State Key Laboratory of Superlattices and Microstructures, Institution of Semiconductors, Chinese Academy of Science , Beijing 100083, China
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