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Song Z, Meng Q, Wei F, Yin Q, Sui Y, Qi J. In situ hydrolysis strategy to synthesis ultrathin CoNi-LDH nanoflowers for High-performance supercapacitors. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Karmakar S, Taqy S, Droopad R, Trivedi RK, Chakraborty B, Haque A. Highly Stable Electrochemical Supercapacitor Performance of Self-Assembled Ferromagnetic Q-Carbon. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8305-8318. [PMID: 36735879 DOI: 10.1021/acsami.2c20202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Novel phase Q-carbon thin films exhibit some intriguing features and have been explored for various potential applications. Herein, we report the growth of different Q-carbon structures (i.e., filaments, clusters, and microdots) by varying the laser energy density from 0.5 to 1.0 J/cm2 during pulsed laser annealing of amorphous diamond-like carbon films with different sp3-sp2 carbon compositions. These unique nano- and microstructures of Q-carbon demonstrate exceptionally stable electrochemical performance by cyclic voltammetry, galvanostatic charging-discharging, and electrochemical impedance spectroscopy for energy applications. The temperature-dependent magnetic studies (magnetization vs magnetic field and temperature) reveal the ferromagnetic nature of the Q-carbon microdots. The saturation magnetization and coercive field values decrease from 132 to 14 emu/cc and 155 to 92 Oe by increasing the temperature from 2 to 300 K, respectively. The electrochemical performances of Q-carbon filament, cluster, and microdot thin-film supercapacitors were investigated by two-electrode configurations, and the highest areal specific capacitance of ∼156 mF/cm2 was observed at a current density of 0.15 mA/cm2 in the Q-carbon microdot thin film. The Q-carbon microdot electrodes demonstrate an exceptional capacitance retention performance of ∼97.2% and Coulombic efficiency of ∼96.5% after 3000 cycles due to their expectational reversibility in the charging-discharging process. The kinetic feature of the ion diffusion associated with the charge storage property is also investigated, and small changes in equivalent series resistance of ∼9.5% and contact resistance of ∼9.1% confirm outstanding stability with active charge kinetics during the stability test. A high areal power density of ∼5.84 W/cm2 was obtained at an areal energy density of ∼0.058 W h/cm2 for the Q-carbon microdot structure. The theoretical quantum capacitance was obtained at ∼400 mF/cm2 by density functional theory calculation, which gives an idea about the overall capacitance value. The obtained areal specific capacitance, power density, and impressive long-term cyclic stability of Q-carbon thin-film microdot electrodes endorse substantial promise in high-performance supercapacitor applications.
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Affiliation(s)
- Subrata Karmakar
- Electrical Engineering, Ingram School of Engineering, Texas State University, San Marcos, Texas78666, United States
| | - Saif Taqy
- Electrical Engineering, Ingram School of Engineering, Texas State University, San Marcos, Texas78666, United States
| | - Ravi Droopad
- Electrical Engineering, Ingram School of Engineering, Texas State University, San Marcos, Texas78666, United States
- Materials Science, Engineering & Commercialization Program, Texas State University, San Marcos, Texas78666, United States
| | - Ravi Kumar Trivedi
- High Pressure & Synchroton Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai400085, India
| | - Brahmananda Chakraborty
- High Pressure & Synchroton Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai400094, India
| | - Ariful Haque
- Electrical Engineering, Ingram School of Engineering, Texas State University, San Marcos, Texas78666, United States
- Materials Science, Engineering & Commercialization Program, Texas State University, San Marcos, Texas78666, United States
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Li M, Zhu K, Zhao H, Meng Z, Wang C, Chu PK. Construction of α-MnO 2 on Carbon Fibers Modified with Carbon Nanotubes for Ultrafast Flexible Supercapacitors in Ionic Liquid Electrolytes with Wide Voltage Windows. NANOMATERIALS 2022; 12:nano12122020. [PMID: 35745359 PMCID: PMC9228112 DOI: 10.3390/nano12122020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/03/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023]
Abstract
In this study, α-MnO2 and Fe2O3 nanomaterials are prepared on a carbon fiber modified with carbon nanotubes to produce the nonbinder core–shell positive (α-MnO2@CNTs/CC) and negative (Fe2O3@CNTs/CC) electrodes that can be operated in a wide voltage window in ultrafast asymmetrical flexible supercapacitors. MnO2 and Fe2O3 have attracted wide research interests as electrode materials in energy storage applications because of the abundant natural resources, high theoretical specific capacities, environmental friendliness, and low cost. The electrochemical performance of each electrode is assessed in 1 M Na2SO4 and the energy storage properties of the supercapacitors consisting of the two composite electrodes are determined in Na2SO4 and EMImBF4 electrolytes in the 2 V and 4 V windows. The 2 V supercapacitor can withstand a large scanning rate of 5000 mV S−1 without obvious changes in the cyclic voltammetry (CV) curves, besides showing a maximum energy density of 57.29 Wh kg−1 at a power density of 833.35 W kg−1. Furthermore, the supercapacitor retains 87.06% of the capacity after 20,000 galvanostatic charging and discharging (GCD) cycles. The 4 V flexible supercapacitor shows a discharging time of 1260 s and specific capacitance of 124.8 F g−1 at a current of 0.5 mA and retains 87.77% of the initial specific capacitance after 5000 GCD cycles. The mechanical robustness and practicality are demonstrated by physical bending and the powering of LED arrays. In addition, the contributions of the active materials to the capacitive properties and the underlying mechanisms are explored and discussed
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Affiliation(s)
- Mai Li
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
- Correspondence: (M.L.); (Z.M.)
| | - Kailan Zhu
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Hanxue Zhao
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Zheyi Meng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science, Donghua University, Shanghai 201620, China
- Correspondence: (M.L.); (Z.M.)
| | - Chunrui Wang
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Paul K. Chu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China;
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Simple and efficient CVD synthesis of graphitic P-doped 3D cubic ordered mesoporous carbon at low temperature with excellent supercapacitor performance. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103439] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Zuo W, Zang L, Liu Q, Qiu J, Lan M, Yang C. A quasi-solid-state supercapacitor based on waste surgical masks with high flexibility and designable shape. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li M, Zhu K, Meng Z, Hu R, Wang J, Wang C, Chu PK. Efficient coupling of MnO 2/TiN on carbon cloth positive electrode and Fe 2O 3/TiN on carbon cloth negative electrode for flexible ultra-fast hybrid supercapacitors. RSC Adv 2021; 11:35726-35736. [PMID: 35492775 PMCID: PMC9043465 DOI: 10.1039/d1ra05742a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/26/2021] [Indexed: 11/21/2022] Open
Abstract
Recent research and development of energy storage devices has focused on new electrode materials because of the critical effects on the electrochemical properties of supercapacitors. In particular, MnO2 and Fe2O3 have drawn extensive attention because of their low cost, high theoretical specific capacity, environmental friendliness, and natural abundance. In this study, MnO2 ultrathin nanosheet arrays and Fe2O3 nanoparticles are fabricated on TiN nanowires to produce binder-free core–shell positive and negative electrodes for a flexible and ultra-fast hybrid supercapacitor. The MnO2/TiN/CC electrode shows larger pseudocapacitance contributions than MnO2/CC. For example, at a scanning rate of 2 mV s−1, the pseudocapacitance contribution of MnO2/TiN/CC is 87.81% which is nearly 25% bigger than that of MnO2/CC (71.26%). The supercapacitor can withstand a high scanning rate of 5000 mV s−1 in the 2 V window and exhibits a maximum energy density of 71.19 W h kg−1 at a power density of 499.79 W kg−1. Even at 5999.99 W kg−1, it still shows an energy density of 31.3 W h kg−1 and after 10 000 cycles, the device retains 81.16% of the initial specific capacitance. The activation mechanism is explored and explained. MnO2 ultrathin nanosheet arrays and Fe2O3 nanoparticles are fabricated on carbon based TiN nanowires to produce binder-free and core–shell positive and negative electrodes for a flexible and ultra-fast hybrid supercapacitor.![]()
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Affiliation(s)
- Mai Li
- College of Science, Donghua University Shanghai 201620 China
| | - Kailan Zhu
- College of Science, Donghua University Shanghai 201620 China
| | - Zheyi Meng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science, Donghua University Shanghai 201620 China
| | - Ruihua Hu
- College of Science, Donghua University Shanghai 201620 China
| | - Jiale Wang
- College of Science, Donghua University Shanghai 201620 China
| | - Chunrui Wang
- College of Science, Donghua University Shanghai 201620 China
| | - Paul K Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science, Donghua University Shanghai 201620 China
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Song X, Shui T, Zhang W, Song K, Shan X, Zhao D. One-step carbonization of a nickel-containing nitrogen-doped porous carbon material for electrochemical supercapacitors. NEW J CHEM 2021. [DOI: 10.1039/d0nj05283c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Improving the graphitization degree of materials by Ni metal catalysis, so as to enhance the electrical properties of the material.
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Affiliation(s)
- Xufeng Song
- School of Chemical Engineering and Materials, Heilongjiang University
- Harbin
- P. R. China
| | - Tianen Shui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Wanying Zhang
- School of Chemical Engineering and Materials, Heilongjiang University
- Harbin
- P. R. China
| | - Keru Song
- School of Chemical Engineering and Materials, Heilongjiang University
- Harbin
- P. R. China
| | - Xuesong Shan
- School of Chemical Engineering and Materials, Heilongjiang University
- Harbin
- P. R. China
| | - Dongyu Zhao
- School of Chemical Engineering and Materials, Heilongjiang University
- Harbin
- P. R. China
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