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Jain A, Ziai Y, Bochenek K, Manippady SR, Pierini F, Michalska M. Utilization of compressible hydrogels as electrolyte materials for supercapacitor applications. RSC Adv 2023; 13:11503-11512. [PMID: 37063734 PMCID: PMC10094976 DOI: 10.1039/d3ra00893b] [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: 02/09/2023] [Accepted: 03/28/2023] [Indexed: 04/18/2023] Open
Abstract
Utilization of CoO@Co3O4-x-Ag (x denotes 1, 3, and 5 wt% of Ag) nanocomposites as supercapacitor electrodes is the main aim of this study. A new low-temperature wet chemical approach is proposed to modify the commercial cobalt oxide material with silver nanoparticle (NP) balls of size 1-5 nm. The structure and morphology of the as-prepared nanocomposites were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N2 adsorption-desorption measurements. Hydrogels known to be soft but stable structures were used here as perfect carriers for conductive nanoparticles such as carbons. Furthermore, hydrogels with a large amount of water in their network can give more flexibility to the system. Fabrication of an electrochemical cell can be achieved by combining these materials with a layer-by-layer structure. The performance characteristics of the cells were examined by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic charge discharge (GCD). Cobalt oxide modified with 5 wt% Ag gave the best supercapacitor results, and the cell offers a specific capacitance of ∼38 mF cm-2 in two-electrode configurations.
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Affiliation(s)
- Amrita Jain
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Yasamin Ziai
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Kamil Bochenek
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Sai Rashmi Manippady
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Filippo Pierini
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B 02-106 Warsaw Poland
| | - Monika Michalska
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava 17. Listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
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Jain A, Manippady SR, Tang R, Nishihara H, Sobczak K, Matejka V, Michalska M. Vanadium oxide nanorods as an electrode material for solid state supercapacitor. Sci Rep 2022; 12:21024. [PMID: 36470983 PMCID: PMC9723181 DOI: 10.1038/s41598-022-25707-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/02/2022] [Indexed: 12/09/2022] Open
Abstract
The electrochemical properties of metal oxides are very attractive and fascinating in general, making them a potential candidate for supercapacitor application. Vanadium oxide is of particular interest because it possesses a variety of valence states and is also cost effective with low toxicity and a wide voltage window. In the present study, vanadium oxide nanorods were synthesized using a modified sol-gel technique at low temperature. Surface morphology and crystallinity studies were carried out by using scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy analysis. To the best of our knowledge, the as-prepared nanorods were tested with magnesium ion based polymer gel electrolyte for the first time. The prepared supercapacitor cell exhibits high capacitance values of the order of ~ 141.8 F g-1 with power density of ~ 2.3 kW kg-1 and energy density of ~ 19.1 Wh kg-1. The cells show excellent rate capability and good cycling stability.
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Affiliation(s)
- Amrita Jain
- grid.413454.30000 0001 1958 0162Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
| | - Sai Rashmi Manippady
- grid.413454.30000 0001 1958 0162Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
| | - Rui Tang
- grid.69566.3a0000 0001 2248 6943Advanced Institute for Materials Research (AIMR-WPI), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Japan
| | - Hirotomo Nishihara
- grid.69566.3a0000 0001 2248 6943Advanced Institute for Materials Research (AIMR-WPI), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Japan ,grid.69566.3a0000 0001 2248 6943Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Japan
| | - Kamil Sobczak
- grid.12847.380000 0004 1937 1290Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Vlastimil Matejka
- grid.440850.d0000 0000 9643 2828Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava, 17 Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Monika Michalska
- grid.440850.d0000 0000 9643 2828Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava, 17 Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
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Yu L, Yang Q, Zhu G, Che R. Preparation and lithium storage of core-shell honeycomb-like Co 3O 4@C microspheres. RSC Adv 2022; 12:29818-29825. [PMID: 36321073 PMCID: PMC9578017 DOI: 10.1039/d2ra05204k] [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: 08/19/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023] Open
Abstract
Core-shell honeycomb-like Co3O4@C microspheres were synthesized via a facile solvothermal method and subsequent annealing treatment under an argon atmosphere. Owing to the core-shell honeycomb-like structure, a long cycling life was achieved (a high reversible specific capacity of 318.9 mA h g-1 was maintained at 5C after 1000 cycles). Benefiting from the coated carbon layers, excellent rate capability was realized (a reversible specific capacity as high as 332.6 mA h g-1 was still retained at 10C). The design of core-shell honeycomb-like microspheres provides a new idea for the development of anode materials for high-performance lithium-ion batteries.
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Affiliation(s)
- Linhe Yu
- Institute of Advanced Materials, Jiangxi Normal University Nanchang 330022 P. R. China
| | - Qihao Yang
- Institute of Advanced Materials, Jiangxi Normal University Nanchang 330022 P. R. China
| | - Guozhen Zhu
- Institute of Advanced Materials, Jiangxi Normal University Nanchang 330022 P. R. China
| | - Renchao Che
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Fudan University Shanghai 200438 P. R. China
- Department of Materials Science, Fudan University Shanghai 200438 P. R. China
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Sumedha H, Shashank M, Praveen B, Nagaraju G. Electrochemical activity of ultrathin MoO3 nanoflakes for long cycle lithium ion batteries. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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