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Enaiet Allah A, Mohamed F, Ghanem MA, Ahmed AM. Chemical synthesis and super capacitance performance of novel CuO@Cu 4O 3/rGO/PANI nanocomposite electrode. RSC Adv 2024; 14:13628-13639. [PMID: 38665496 PMCID: PMC11044122 DOI: 10.1039/d4ra00065j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Copper oxide-based nanocomposites are promising electrode materials for high-performance supercapacitors due to their unique properties that aid electrolyte access and ion diffusion to the electrode surface. Herein, a facile and low-cost synthesis in situ strategy based on co-precipitation and incorporation processes of reduced graphene oxide (rGO), followed by in situ oxidative polymerization of aniline monomer has been reported. CuO@Cu4O3/rGO/PANI nanocomposite revealed the good distribution of CuO@Cu4O3 and rGO within the polymer matrix which allows improved electron transport and ion diffusion process. Galvanostatic charge-discharge (GCD) results displayed a higher specific capacitance value of 508 F g-1 for CuO@Cu4O3/rGO/PANI at 1.0 A g-1 in comparison to the pure CuO@Cu4O3 278 F g-1. CuO@Cu4O3/rGO/PANI displays an energy density of 23.95 W h kg-1 and power density of 374 W kg-1 at the current density of 1 A g-1 which is 1.8 times higher than that of CuO@Cu4O3 (13.125 W h kg-1) at the same current density. The retention of the electrode was 93% of its initial capacitance up to 5000 cycles at a scan rate of 100 mV s-1. The higher capacitance of the CuO@Cu4O3/rGO/PANI electrode was credited to the formation of a fibrous network structure and rapid ion diffusion paths through the nanocomposite matrix that resulted in enhanced surface-dependent electrochemical properties.
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Affiliation(s)
- Abeer Enaiet Allah
- Department of Chemistry, Faculty of Science, Beni-Suef University 62514 Beni-Suef City Egypt
- Materials Science Lab, Chemistry Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt
| | - Fatma Mohamed
- Department of Chemistry, Faculty of Science, Beni-Suef University 62514 Beni-Suef City Egypt
- Materials Science Lab, Chemistry Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt
- Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt
| | - Mohamed A Ghanem
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Ashour M Ahmed
- Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt
- Physics Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11623 Saudi Arabia
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Kandhasamy N, Preethi LK, Mani D, Walczak L, Mathews T, Venkatachalam R. RGO nanosheet wrapped β-phase NiCu 2S nanorods for advanced supercapacitor applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18546-18562. [PMID: 36215010 DOI: 10.1007/s11356-022-23359-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
A new integration strategy of transition metal sulfide with carbon-based materials is used to boost its catalytic property and electrochemical performances in supercapacitor application. Herein, crystalline reduced graphene oxide (rGO) wrapped ternary metal sulfide nanorod composites with different rGO ratios are synthesized using hydrothermal technique and are compared for their physical, chemical, and electrochemical performances. It is found that their properties are tuned by the weight ratios of rGO. The electrochemical investigations reveal that β-NiCu2S/rGO nanocomposite electrode with 0.15 wt.% of rGO is found to possess maximum specific capacitance of 1583 F g-1 at current density of 15 mA g-1 in aqueous electrolyte medium. The same electrode shows excellent cycling stability with capacitance retention of 89% after 5000 charging/discharging cycles. The reproducibility test performed on NiCu2S/rGO nanocomposite electrode with 0.15 wt.% of rGO indicates that it has high reproducible capacitive response and rate capability. Thus, the present work demonstrates that the β-NiCu2S/rGO nanocomposite can serve as a potential electrode material for developing supercapacitor energy storage system.
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Affiliation(s)
- Narthana Kandhasamy
- Centre for Nano Science and Nanotechnology, K.S. Rangasamy College of Technology, Tiruchengode, Tamil Nadu, 637215, India
| | - Laguduva K Preethi
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology (Deemed to Be University), Chennai, Tamil Nadu, 600119, India
| | - Devendiran Mani
- Central Instrumentation Laboratory, Vels Institute of Science Technology and Advanced Studies (VISTAS), Chennai, Tamil Nadu, 600117, India
| | - Lukasz Walczak
- Science & Research Division, PREVAC Sp. Z O.O, 44-362, Rogow, Poland
| | - Tom Mathews
- Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam, 603102, India
| | - Rajendran Venkatachalam
- Centre for Nano Science and Nanotechnology, K.S. Rangasamy College of Technology, Tiruchengode, Tamil Nadu, 637215, India.
- Department of Physics, Dr. N. G. P. Arts and Science College, Coimbatore, Tamil Nadu, 641048, India.
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Lu M, Cao Y, Xue Y, Qiu W. Preparation of Graphene Oxide/La 2Ti 2O 7 Composites with Enhanced Electrochemical Performances for Supercapacitors. ACS OMEGA 2021; 6:27994-28003. [PMID: 34722999 PMCID: PMC8552325 DOI: 10.1021/acsomega.1c03863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/27/2021] [Indexed: 05/08/2023]
Abstract
A series of graphene oxide (GO)/lanthanum titanate (La2Ti2O7, LTO) fiber composites were prepared through a hydrothermal method. The LTO fibers were homogeneously dispersed between the GO sheets. The structure and micromorphology of the GO/LTO composites were systematically studied. The composite exhibited a high specific capacitance of 900.6 F g-1 at a current density of 1 A g-1 in the 1 M H2SO4 and 10 wt % sucrose aqueous solution as the electrolyte. With the extended potential window of 1.8 V, the fabricated asymmetric supercapacitor device delivered a maximum energy density of 94.0 Wh kg-1 at a power density of 750.1 W kg-1. The GO/LTO composites could be promising materials for energy storage.
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Affiliation(s)
- Munan Lu
- South
China Advanced Institute for Soft Matter Science and Technology, School
of Molecular Science and Engineering, South
China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Yi Cao
- China-Ukraine
Belt and Road Joint Laboratory on Materials Joining and Advanced Manufacturing,
Guangdong Provincial Key Laboratory of Advanced Welding Technology,
China-Ukraine Institute of Welding, Guangdong
Academy of Sciences, 363 Changxing Road, Guangzhou 510650, China
| | - Yufeng Xue
- South
China Advanced Institute for Soft Matter Science and Technology, School
of Molecular Science and Engineering, South
China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Wenfeng Qiu
- South
China Advanced Institute for Soft Matter Science and Technology, School
of Molecular Science and Engineering, South
China University of Technology, 381 Wushan Road, Guangzhou 510640, China
- Guangdong
Provincial Key Laboratory of Functional and Intelligent Hybrid Materials
and Devices, South China University of Technology, Guangzhou 510640, China
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Zhou X, Yue X, Dong Y, Zheng Q, Lin D, Du X, Qu G. Enhancing electrochemical performance of electrode material via combining defect and heterojunction engineering for supercapacitors. J Colloid Interface Sci 2021; 599:68-78. [PMID: 33933798 DOI: 10.1016/j.jcis.2021.04.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022]
Abstract
The poor conductivity and deficient active sites of transition metal oxides lead to low energy density of supercapacitors, which limits their wide application. In this work, double transition metal oxide heterojunctions with oxygen vacancy (Vo-ZnO/CoO) nanowires are prepared by effective hydrothermal and thermal treatments. The formation of the heterojunction results in the redistribution of interface charge between ZnO and CoO, generating an internal electric field to accelerate the electron transport. Meanwhile, oxygen vacancies can enhance the redox reaction activity to further improve the electrochemical kinetics of the electrode material. Therefore, the prepared Vo-ZnO/CoO can provide a superior specific capacity of 845 C g-1 (1 A g-1). An asymmetric supercapacitor with the Vo-ZnO/CoO as positive electrode shows a higher energy density of 51.6 Wh kg-1 when the power density reaches 799.9 W kg-1. This work proposes a synergistic combination of defect and heterojunction engineering to improve the electrochemical properties of materials, providing an important guidance for material design in energy-storage field.
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Affiliation(s)
- Xinyi Zhou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China
| | - Xiaoqiu Yue
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China
| | - Yingxia Dong
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China
| | - Qiaoji Zheng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China.
| | - Dunmin Lin
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China
| | - Xiaosong Du
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Guoxing Qu
- School of Material Science and Engineering, Nanchang University, Nanchang 330031, PR China.
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