1
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Ping T, Li C, Yezhe Y. Conversion of cobalt from spent LIBs to Co 3O 4 electrode material for application in supercapacitors. ENVIRONMENTAL TECHNOLOGY 2024:1-14. [PMID: 39002154 DOI: 10.1080/09593330.2024.2376288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 06/22/2024] [Indexed: 07/15/2024]
Abstract
The cathode material of lithium-ion batteries (LIBs) is endowed with valuable metals, such as cobalt. The improper treatment of these batteries pollutes the environment and causes enormous resource waste. Therefore, the recovery of valuable metals from spent LIBs has attracted widespread attention. In this study, Co3O4 electrode materials were prepared by a simple homogeneous precipitation method and heat treatment using a leaching solution of spent LIBs-positive electrode material as the cobalt source. The crystal structure and morphology of the products were examined at different annealing temperatures, and their electrochemical performance was analyzed. The results show that low-temperature annealing contributes to grain refinement. The Co3O4 material prepared at 300°C annealing temperature has a rod-like structure with distinct pores and a specific surface area of 58.98 m2 g-1. Furthermore, electrochemical performance testing reveals that Co3O4 prepared at 300°C displays the best electrochemical performance as an electrode material, with a specific capacitance of 97.93 F g-1 and a cycle retention rate of 79.12% after 500 charge-discharge cycles. These findings demonstrate the feasibility of recycling valuable metal cobalt from spent LIBs cathode materials to produce Co3O4 materials for use as supercapacitor electrode materials, opening up new avenues for the recycling and utilisation of spent LIBs.
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Affiliation(s)
- Tang Ping
- School of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, People's Republic of China
| | - Chen Li
- School of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, People's Republic of China
| | - Yu Yezhe
- School of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, People's Republic of China
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2
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Tundwal A, Kumar H, Binoj BJ, Sharma R, Kumar G, Kumari R, Dhayal A, Yadav A, Singh D, Kumar P. Developments in conducting polymer-, metal oxide-, and carbon nanotube-based composite electrode materials for supercapacitors: a review. RSC Adv 2024; 14:9406-9439. [PMID: 38516158 PMCID: PMC10951819 DOI: 10.1039/d3ra08312h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/05/2024] [Indexed: 03/23/2024] Open
Abstract
Supercapacitors are the latest development in the field of energy storage devices (ESDs). A lot of research has been done in the last few decades to increase the performance of supercapacitors. The electrodes of supercapacitors are modified by composite materials based on conducting polymers, metal oxide nanoparticles, metal-organic frameworks, covalent organic frameworks, MXenes, chalcogenides, carbon nanotubes (CNTs), etc. In comparison to rechargeable batteries, supercapacitors have advantages such as quick charging and high power density. This review is focused on the progress in the development of electrode materials for supercapacitors using composite materials based on conducting polymers, graphene, metal oxide nanoparticles/nanofibres, and CNTs. Moreover, we investigated different types of ESDs as well as their electrochemical energy storage mechanisms and kinetic aspects. We have also discussed the classification of different types of SCs; advantages and drawbacks of SCs and other ESDs; and the use of nanofibres, carbon, CNTs, graphene, metal oxide-nanofibres, and conducting polymers as electrode materials for SCs. Furthermore, modifications in the development of different types of SCs such as pseudo-capacitors, hybrid capacitors, and electrical double-layer capacitors are discussed in detail; both electrolyte-based and electrolyte-free supercapacitors are taken into consideration. This review will help in designing and fabricating high-performance supercapacitors with high energy density and power output, which will act as an alternative to Li-ion batteries in the future.
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Affiliation(s)
- Aarti Tundwal
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Harish Kumar
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Bibin J Binoj
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Rahul Sharma
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Gaman Kumar
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Rajni Kumari
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Ankit Dhayal
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | - Abhiruchi Yadav
- Dept of Chemistry, Central University of Haryana Mahendergarh-123031 India
| | | | - Parvin Kumar
- Dept of Chemistry, Kurukshetra University Kurukshetra India
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3
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Cao X, Gao Y, Li Y, Weragoda DM, Tian G, Zhang W, Zhang Z, Zhao X, Chen B. Research progress on MOFs and their derivatives as promising and efficient electrode materials for electrocatalytic hydrogen production from water. RSC Adv 2023; 13:24393-24411. [PMID: 37583672 PMCID: PMC10424057 DOI: 10.1039/d3ra04110g] [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: 06/19/2023] [Accepted: 07/24/2023] [Indexed: 08/17/2023] Open
Abstract
Hydrogen energy is considered to be the most potential "ultimate energy source" due to its high combustion calorific value, cleanliness, and pollution-free characteristics. Furthermore, the production of hydrogen via the electrolysis of water has the advantages of simplicity, high efficiency, environmentally safe, and high-purity hydrogen. However, it is also associated with issues such as high-power consumption for the reaction and limited large-scale application of noble metal catalysts. Metal-organic frameworks (MOFs) are porous composite materials composed of metal ions and organic functional groups through orderly coordination with large specific surface areas and large porosity. Herein, we focus on the research status of MOFs and their transition metal derivatives for electrocatalytic water splitting to produce hydrogen and briefly describe the reaction mechanism and evaluation parameters of the electrocatalytic hydrogen evolution and oxygen evolution reactions. Furthermore, the relationship between the catalytic behavior and catalytic activity of different MOF-based catalysts and their morphology, elemental composition, and synthetic strategy is analyzed and discussed. The reasons for the excellent activity and poor stability of the original MOF materials for the electrolysis of water reaction are shown through analysis, and using various means to improve the catalytic activity by changing the electronic structure, active sites, and charge transfer rate, MOF-based catalysts were obtained. Finally, we present perspectives on the future development of MOFs for the electrocatalytic decomposition of water.
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Affiliation(s)
- Xuankai Cao
- Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University Jinan 250013 China +8613864154887
| | - Yan Gao
- Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University Jinan 250013 China +8613864154887
- Shandong Province Jinan Ecological and Environmental Monitoring Center Jinan 250101 China
- School of Mechanical Engineering Sciences, University of Surrey Guildford Surrey GU2 7XH UK
| | - Yanteng Li
- Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University Jinan 250013 China +8613864154887
| | - Delika M Weragoda
- School of Mechanical Engineering Sciences, University of Surrey Guildford Surrey GU2 7XH UK
| | - Guohong Tian
- School of Mechanical Engineering Sciences, University of Surrey Guildford Surrey GU2 7XH UK
| | - Wenke Zhang
- Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University Jinan 250013 China +8613864154887
| | - Zhanchao Zhang
- Shandong Province Jinan Ecological and Environmental Monitoring Center Jinan 250101 China
| | - Xudong Zhao
- Energy and Environmental Institute, University of Hull Hull HU6 7RX UK
| | - Baoming Chen
- Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University Jinan 250013 China +8613864154887
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4
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Bhatti AL, Tahira A, Kumar S, Ujjan ZA, Bhatti MA, Kumar S, Aftab U, Karsy A, Nafady A, Infantes-Molina A, Ibupoto ZH. Facile synthesis of efficient Co 3O 4 nanostructures using the milky sap of Calotropis procera for oxygen evolution reactions and supercapacitor applications. RSC Adv 2023; 13:17710-17726. [PMID: 37333727 PMCID: PMC10273030 DOI: 10.1039/d3ra02555a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/27/2023] [Indexed: 06/20/2023] Open
Abstract
The preparation of Co3O4 nanostructures by a green method has been rapidly increasing owing to its promising aspects, such as facileness, atom economy, low cost, scale-up synthesis, environmental friendliness, and minimal use of hazardous chemicals. In this study, we report on the synthesis of Co3O4 nanostructures using the milky sap of Calotropis procera (CP) by a low-temperature aqueous chemical growth method. The milky sap of CP-mediated Co3O4 nanostructures were investigated for oxygen evolution reactions (OERs) and supercapacitor applications. The structure and shape characterizations were done by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS) techniques. The prepared Co3O4 nanostructures showed a heterogeneous morphology consisting of nanoparticles and large micro clusters. A typical cubic phase and a spinel structure of Co3O4 nanostructures were also observed. The OER result was obtained at a low overpotential of 250 mV at 10 mA cm-2 and a low Tafel slope of 53 mV dec-1. In addition, the durability of 45 hours was also found at 20 mA cm-2. The newly prepared Co3O4 nanostructures using the milky sap of CP were also used to demonstrate a high specific capacitance of 700 F g-1 at a current density of 0.8 A g-1 and a power density of 30 W h kg-1. The enhanced electrochemical performance of Co3O4 nanostructures prepared using the milky sap of CP could be attributed to the surface oxygen vacancies, a relatively high amount of Co2+, the reduction in the optical band gap and the fast charge transfer rate. These surface, structural, and optical properties were induced by reducing, capping, and stabilizing agents from the milky sap of CP. The obtained results of OERs and supercapacitor applications strongly recommend the use of the milky sap of CP for the synthesis of diverse efficient nanostructured materials in a specific application, particularly in energy conversion and storage devices.
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Affiliation(s)
| | - Aneela Tahira
- Institute of Chemistry, Shah Abdul Latif University Khairpur Mirs Sindh Pakistan
| | - Shusheel Kumar
- Institute of Physics, University of Sindh Jamshoro 76080 Sindh Pakistan
| | | | - Muhammad Ali Bhatti
- Centre for Environmental Sciences, University of Sindh Jamshoro 76080 Sindh Pakistan
| | - Sooraj Kumar
- Department of Chemical Engineering, Mehran University of Engineering and Technology 7680 Jamshoro Sindh Pakistan
| | - Umair Aftab
- Department of Metallurgy and Materials, Mehran University of Engineering and Technology 7680 Jamshoro Sindh Pakistan
| | - Amal Karsy
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE) Cairo Egypt
| | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Antonia Infantes-Molina
- Department of Inorganic Chemistry, Crystallography and Mineralogy, Unidad Asociada al ICP-CSIC, Faculty of Sciences, University of Malaga, Campus de Teatinos 29071 Malaga Spain
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5
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Sekhar MC, Kumar NS, Asif M, Vattikuti SVP, Shim J. Enhancing Electrochemical Performance with g-C3N4/CeO2 Binary Electrode Material. Molecules 2023; 28:molecules28062489. [PMID: 36985459 PMCID: PMC10059818 DOI: 10.3390/molecules28062489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023] Open
Abstract
An innovative form of 2D/0D g-C3N4/CeO2 nanostructure was synthesized using a simple precursor decomposition process. The 2D g-C3N4 directs the growth of 0D CeO2 quantum dots, while also promoting good dispersion of CeO2QDs. This 2D/0D nanostructure shows a capacitance of 202.5 F/g and notable rate capability and stability, outperforming the g-C3N4 electrode, reflecting the state-of-the-art g-C3N4 binary electrodes. The binary combination of materials also enables an asymmetric device (g-C3N4/CeO2QDs//AC) to deliver the highest energy density (9.25 Wh/kg) and power density (900 W/kg). The superior rate capacity and stability endorsed the quantum structural merits of CeO2QDs and layered g-C3N4, which offer more accessible sites for ion transport. These results suggest that the g-C3N4/CeO2QDs nanostructure is a promising electrode material for energy storage devices.
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Affiliation(s)
- M. Chandra Sekhar
- Department of Physics, Madanapalle Institute of Technology and Science, Madanapalle 517 325, India
| | - Nadavala Siva Kumar
- Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Mohammad Asif
- Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | | | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Correspondence: or (S.V.P.V.); (J.S.)
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6
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Ul Hoque MI, Holze R. Intrinsically Conducting Polymer Composites as Active Masses in Supercapacitors. Polymers (Basel) 2023; 15:730. [PMID: 36772032 PMCID: PMC9920322 DOI: 10.3390/polym15030730] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 02/04/2023] Open
Abstract
Intrinsically conducting polymers ICPs can be combined with further electrochemically active materials into composites for use as active masses in supercapacitor electrodes. Typical examples are inspected with particular attention to the various roles played by the constituents of the composites and to conceivable synergistic effects. Stability of composite electrode materials, as an essential property for practical application, is addressed, taking into account the observed causes and effects of materials degradation.
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Affiliation(s)
- Md. Ikram Ul Hoque
- Discipline of Chemistry, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
| | - Rudolf Holze
- Department of Electrochemistry, Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia
- Institut für Chemie, Chemnitz University of Technology, D-09107 Chemnitz, Germany
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
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7
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Alem AF, Worku AK, Ayele DW, Wubieneh TA, Teshager AA, Tadele mihret kndie, Admasu BT, Teshager MA, Asege AA, Ambaw MD, Zeleke MA, Shibesh AK, Yemata TA. Ag doped Co 3O 4 nanoparticles for high-performance supercapacitor application. Heliyon 2023; 9:e13286. [PMID: 36816229 PMCID: PMC9929304 DOI: 10.1016/j.heliyon.2023.e13286] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
Ag doped Co3O4 nanoparticles (NPs) were synthesized via a co-precipitation method changing the concentration of Ag. The crystal structure, morphology, surface area, functional group, optical band gap, and thermal property were investigated by XRD, SEM, BET, FTIR, UV-Vis, and TGA/DTA techniques. The XRD results showed the formation of single-cubic Co3O4 nanostructured materials with an average crystal size of 19.37 nm and 12.98 nm for pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs. Morphological studies showed that pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs having a porous structure with small spherical grains, porous structures with sponge-like structures, and loosely packed porous structures, respectively. The pristine and 0.25 M Ag-doped Co3O4 NPs showed BET surface areas of 53.06 m2/g, and 407.33 m2/g, respectively. The band gap energy of Co3O4 NPs were 2.96 eV, with additional sub-bandgap energy of 1.95 eV. Additionally, it was discovered that the band gap energies of 0.25 M Ag-doped Co3O4 NPs ranged from 2.2 to 2.75 eV, with an extra sub-band with energies ranging from 1.43 to 1.94 eV for all as-prepared samples. The Ag-doped Co3O4 as prepared samples show improved thermal properties due to the doping effect of silver. The CV test confirmed that the 0.25 M Ag-doped Co3O4 NPs exhibited the highest specific capacitance value of 992.7 F/g at 5 mV/s in a 0.1 M KOH electrolyte solution. The energy density and power density of 0.25 M Ag-doped Co3O4 NPs were 27.9 W h/kg and 3816.1 W/kg, respectively.
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Affiliation(s)
- Asab Fetene Alem
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Ababay Ketema Worku
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia,Corresponding author.
| | - Delele Worku Ayele
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia,Department of Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia,Corresponding author. Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Tessera Alemneh Wubieneh
- School of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Alebel abebaw Teshager
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Tadele mihret kndie
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Bimrew Tamrat Admasu
- Faculty of Mechanical Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Minbale Admas Teshager
- Department of Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Addisu Alemayehu Asege
- School of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Mehary Dagnew Ambaw
- Department of Industrial Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Misganaw Alemu Zeleke
- School of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Alemayehu Kifle Shibesh
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Temesgen Atnafu Yemata
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia,Corresponding author.
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8
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Gu Y, Xu D, Chen S, You F, Hu C, Huang H, Chen J. In Situ Growth of MnO 2 Nanosheets on a Graphite Flake as an Effective Binder-Free Electrode for High-Performance Supercapacitors. ACS OMEGA 2022; 7:48320-48331. [PMID: 36591178 PMCID: PMC9798508 DOI: 10.1021/acsomega.2c06506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In this work, manganese dioxide (MnO2) nanosheets in situ loaded on a high-purity graphite flake (GF) were prepared by one-step hydrothermal deposition. It was found that the specific capacitance value of a single MnO2/GF electrode was 882 F/g at a current density of 1.0 A/g in a KOH electrolyte, and the specific capacitance retention of the MnO2/GF electrode can reach about 90.1% after 5000 charge-discharge cycles at a current density of 10 A/g. Furthermore, a MnO2/GF∥MnO2/GF symmetric supercapacitor device was fabricated with two pieces of MnO2/GF electrodes and ordinary filter paper with a 1 M KOH/PVA gel electrolyte as a separator. The single symmetric device displayed a high energy density of 64.2 Wh/kg at a power density of 400 W/kg within an applied voltage of 1.6 V, and this value was superior to those of previously reported MnO2-based systems. A tandem device consisting of a five-series tandem device (the applied voltage of a single device was 0.7 V) and a three-series tandem device (the applied voltage of a single device was 1.6 V) was prepared to drive a red light-emitting diode (LED). These findings open up application prospects for MnO2-based composite electrode materials for high-performance supercapacitors.
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Affiliation(s)
- Yuanhang Gu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Dong Xu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Shaoyun Chen
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Feng You
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Chenglong Hu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Huabo Huang
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Jian Chen
- Instrumental
Analysis and Research Center, Sun Yat-sen
University, Guangzhou510275, P. R. China
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9
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Simonenko TL, Simonenko NP, Topalova YP, Gorobtsov PY, Simonenko EP, Kuznetsov NT. Synthesis of Nanoscale Co3O4 Spinel and Its Application to Form Miniature Planar Structures by Microplotter Printing. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s003602362260174x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Bao E, Ren X, Wu R, Liu X, Chen H, Li Y, Xu C. Porous MgCo2O4 nanoflakes serve as electrode materials for hybrid supercapacitors with excellent performance. J Colloid Interface Sci 2022; 625:925-935. [DOI: 10.1016/j.jcis.2022.06.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/07/2022] [Accepted: 06/21/2022] [Indexed: 01/17/2023]
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11
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Electrochemical investigations of the various electrolytes for high energy density metal oxide supercapacitor. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05260-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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12
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Development of pseudocapacitive materials based on cobalt and iron oxide compounds for an asymmetric energy storage device. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Hu Z, Hao L, Quan F, Guo R. Recent developments of Co3O4-based materials as catalysts for the oxygen evolution reaction. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01688a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The demand for the development of clean and efficient energy is becoming increasingly pressing due to depleting fossil fuels and environmental concerns.
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Affiliation(s)
- Zhenyu Hu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Liping Hao
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Fan Quan
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Rui Guo
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
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14
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Low-Dimensional Nanostructures Based on Cobalt Oxide (Co3O4) in Chemical-Gas Sensing. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9080197] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Highly sensitive, stable, low production costs, together with easy maintenance and portability, sensors are ever most demanded nowadays for monitoring and quantification of hazardous chemicals/gases in the environment. The utilization of one dimensional (1D) metal oxide nano structured chemical/gas sensors for environmental monitoring is vastly investigated because of their superior surface to volume ratio, stability, and low production costs, to provide information on the presence of chemical species. Several outstanding attempts have been pursued investigating 1D nano structures of Co3O4 over the past decades as an active material for chemical analytes detection owing to its superior catalytic effect together with its excellent stability. This article reviews the state-of-the-art of growth and characterization of Co3O4 1D nano structures and their functional characterization as chemical/gas sensors. Moreover, fundamental concepts and characteristic features, that enhance the key performances of chemical/gas sensors, are discussed. Finally, challenges and prospective for growth and fabrication of 1D Co3O4 chemical/gas sensors are discussed.
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15
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Synthesis of Cobalt Oxide on FTO by Hydrothermal Method for Photoelectrochemical Water Splitting Application. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11073031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Cobalt oxide thin films were successfully grown directly on fluorine-doped tin oxide glass substrates through a simple, green, and low-cost hydrothermal method. An investigation into the physicochemical characteristics and photoelectrochemical (PEC) properties of the developed cobalt oxide thin film was comprehensively performed. At various annealing temperatures, different morphologies and crystal phases of cobalt oxide were observed. Microflowers (Co3O4) and microflowers with nanowire petals (Co3O4/CoO) were produced at 450 °C and 550 °C, respectively. Evaluation of the PEC performance of the samples in KOH (pH 13), Na2SO4 (pH 6.7), and H2SO4 (pH 1) revealed that the highest photocurrent −2.3 mA cm−2 generated at −0.5 V vs. reversible hydrogen electrode (RHE) was produced by Co3O4 (450 °C) in H2SO4 (pH 1). This photocurrent corresponded to an 8-fold enhancement compared with that achieved in neutral and basic electrolytes and was higher than the results reported by other studies. This promising photocurrent generation was due to the abundant source of protons, which was favorable for the hydrogen evolution reaction (HER) in H2SO4 (pH 1). The present study showed that Co3O4 is photoactive under acidic conditions, which is encouraging for HER compared with the mixed-phase Co3O4/CoO.
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Lai C, Wang S, Cheng L, Wang Y, Fu L, Sun Y, Lin B. High-performance asymmetric supercapacitors of advanced double ion-buffering reservoirs based on battery-type hierarchical flower-like Co3O4-GC microspheres and 3D holey graphene aerogels. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137334] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Preparation and Electrochemical Properties of Co3O4 Supercapacitor Electrode Materials. CRYSTALS 2020. [DOI: 10.3390/cryst10090720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A special gas-phase diffusion precipitation method with ammonia as the gas-phase diffusion precipitant was adopted. After fully reacting with different cobalt sources in a sealed space, the liquid funnel was separated and dried, and calcined at different temperatures for 2 h. The prepared Co3O4 powder was used as a supercapacitor (SCs) electrode to measure the electrochemical properties of the prepared material. The influences of different cobalt sources and sodium phosphate monobasic dehydrate on the preparation of Co3O4 SCs electrodes were investigated. The optimal performance of Co3O4 was 640 F·g−1 before modification, and this reached 1140 F·g−1 after modification, which was an improvement of 78.1%.
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