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Roohi Z, Mighri F, Zhang Z. Conductive Polymer-Based Electrodes and Supercapacitors: Materials, Electrolytes, and Characterizations. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4126. [PMID: 39203303 PMCID: PMC11356714 DOI: 10.3390/ma17164126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/31/2024] [Accepted: 08/09/2024] [Indexed: 09/03/2024]
Abstract
New materials and the interactions between them are the basis of novel energy storage devices such as supercapacitors and batteries. In recent years, because of the increasing demand for electricity as an energy source, the development of new energy storage materials is among the most actively studied topics. Conductive polymers (CPs), because of their intrinsic electrochemical activity and electrical conductivity, have also been intensively explored. While most of the high capacitance reported in the literature comes from hybrid materials, for example, conductive polymers composed of metal oxides and carbon materials, such as graphene and carbon nanotubes, new chemistry and the 3D structure of conductive polymers remain critical. This comprehensive review focuses on the basic properties of three popular conductive polymers and their composites with carbon materials and metal oxides that have been actively explored as energy storage materials, i.e., polypyrrole (PPy), polyaniline (PANi), and polythiophene (PTh), and various types of electrolytes, including aqueous, organic, quasi-solid, and self-healing electrolytes. Important experimental parameters affecting material property and morphology are also discussed. Electrochemical and analytical techniques frequently employed in material and supercapacitor research are presented. In particular, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are discussed in detail, including how to extract data from spectra to calculate key parameters. Pros and cons of CP-based supercapacitors are discussed together with their potential applications.
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Affiliation(s)
- Zahra Roohi
- Department of Chemical Engineering, Faculty of Sciences and Engineering, Université Laval, Quebec, QC G1V 0A6, Canada; (Z.R.); (F.M.)
- Division of Regenerative Medicine, Saint-François d’Assise Hospital, Research Center of CHU de Québec—Université Laval, Quebec, QC G1L 3L5, Canada
| | - Frej Mighri
- Department of Chemical Engineering, Faculty of Sciences and Engineering, Université Laval, Quebec, QC G1V 0A6, Canada; (Z.R.); (F.M.)
| | - Ze Zhang
- Division of Regenerative Medicine, Saint-François d’Assise Hospital, Research Center of CHU de Québec—Université Laval, Quebec, QC G1L 3L5, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec, QC G1V 0A6, Canada
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2
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Facure MH, Andre RS, Cardoso RM, Mercante LA, Correa DS. Electrochemical and optical dual-mode detection of phenolic compounds using MnO2/GQD nanozyme. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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3
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Pandey S, Son N, Kim S, Balakrishnan D, Kang M. Locust Bean gum-based hydrogels embedded magnetic iron oxide nanoparticles nanocomposite: Advanced materials for environmental and energy applications. ENVIRONMENTAL RESEARCH 2022; 214:114000. [PMID: 35948150 DOI: 10.1016/j.envres.2022.114000] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/14/2022] [Accepted: 07/25/2022] [Indexed: 05/26/2023]
Abstract
This paper reports a simple method of designing and synthesizing magnetic iron oxide (IO) integrated locust bean gum-cl-polyacrylonitrile hydrogel nanocomposites (LBG-cl-PAN/IONP) by in situ mineralization of iron ions in a hydrogel matrix. A two-step gel crosslink method followed by co-precipitation method was used to prepare these novel hydrogels embedded with magnetic iron oxide nanoparticles. The LBG-cl-PAN/IONP hydrogel nanocomposite (HNC) were tested in batch adsorption experiments for their ability to remove a cationic dyes, methylene blue (MB) & Methyl violet (MV), from aqueous solution. In order to analyze the LBG-cl-PAN/IONP HNC, FTIR, XRD, XPS, VSM, TEM, and EDX techniques were applied. Numerous operating parameters were studied, including the amount of adsorbent, the contact time, pH, temperature, the dye concentration, and the coexisting ion concentration. According to the Langmuir isotherm model, MB and MV had maximum monolayer adsorptive capacities of 1250 and 1111 mg/g, respectively. LBG-cl-PAN/IONP HNC controlled IONP oxidation as well as sustained adsorptive removal over a wide pH range (7-10). The key mechanism of adsorption consisted of electrostatic interaction and ion exchange. For successful use in successive cycles after regeneration using HNO3 as eluent, the LBG-cl-PAN/IONP HNC can easily be reused. As a material, the LBG-cl-PAN/IONP HNC is a promising sorbent or composite material for removing toxic dyes from water, and therefore can be applied to enhance water and wastewater treatment technology. Additionally, we have briefly evaluated LBG-cl-PAN/IONP HNC for antibacterial and supercapacitor applications. According to our knowledge, this is the first report describing the use of LBG-cl-PAN/IONP HNC multifunctional efficacy as an excellent sorbent, antibacterial and electrochemical supercapacitor applications.
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Affiliation(s)
- Sadanand Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Namgyu Son
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Sujeong Kim
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Deepanraj Balakrishnan
- Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al-Khobar, 31952, Saudi Arabia
| | - Misook Kang
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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Gogoi D, Das MR, Ghosh NN. CoFe 2O 4 Hollow Spheres-Decorated Three-Dimensional rGO Sponge for Highly Efficient Electrochemical Charge Storage Devices. ACS OMEGA 2022; 7:11305-11319. [PMID: 35415351 PMCID: PMC8992275 DOI: 10.1021/acsomega.2c00374] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/11/2022] [Indexed: 06/01/2023]
Abstract
The energy demand, the crisis of fossil fuels, and the increasing popularity of portable and wearable electronics in the global market have triggered the demand to develop high-performance flexible all-solid-state supercapacitors that are capable of delivering high energy at high power density as well as being safely entrenched in those electronics. Herein, we have designed a nanocomposite, 80CFhs-20rGOsp, which exhibits a high specific capacitance (C S) value of 1032 F g-1 at 3 A g-1. Utilizing this nanocomposite as the cathode and reduced graphene oxide sponge (rGOsp) as the anode, a flexible all-solid-state asymmetric device has been fabricated. In this device, poly(vinyl alcohol) (PVA) gel embedded with a mixture of 3 M KOH and 0.1 M K4[Fe(CN)6] was used as an electrolyte cum separator. The fabricated device showed the capability to deliver an energy density of 65.8 W h kg-1 at a power density of 1500 W kg-1 and retained its capability even after various physical deformations. The device also exhibited a long cycle life and retained ∼96% of its C S value after 5000 cycles. Moreover, the fabricated flexible all-solid-state device successfully illuminated light-emitting diodes, which proved its potential use in real-life supercapacitor applications. The obtained results revealed the excellent electrochemical performances of the fabricated device and rendered it a promising candidate in the energy sector.
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Affiliation(s)
- Debika Gogoi
- Nano-materials
Lab, Department of Chemistry, Birla Institute
of Technology and Science, Pilani, K K Birla Goa Campus, Zuarinagar 403726, Goa, India
| | - Manash R. Das
- Advanced
Materials Group, Materials Sciences and Technology Division, CSIR—North East Institute of Science and Technology, Jorhat 785006, Assam, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Narendra Nath Ghosh
- Nano-materials
Lab, Department of Chemistry, Birla Institute
of Technology and Science, Pilani, K K Birla Goa Campus, Zuarinagar 403726, Goa, India
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5
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Zhang XP, Xu W, Wang JH, Shu Y. MnO 2/DNAzyme-mediated ratiometric fluorescence assay of acetylcholinesterase. Analyst 2022; 147:4008-4013. [DOI: 10.1039/d2an01180h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ratiometric fluorescent probe (MnO2/DNAzyme) is constructed. In the presence of AChE, the product thiocholine reduces MnO2 to Mn2+. The released H1 strands hybridizes with H2 strands to activate DNAzyme and cause cleavage of DNA-F signal probe.
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Affiliation(s)
- Xiao-Ping Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Wang Xu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Jian-Hua Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yang Shu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
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Kumar A, Rathore HK, Sarkar D, Shukla A. Nanoarchitectured transition metal oxides and their composites for supercapacitors. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Ankit Kumar
- Solid State and Structural Chemistry Unit Indian Institute of Science Bengaluru India
| | - Hem Kanwar Rathore
- Department of Physics Malaviya National Institute of Technology Jaipur Rajasthan India
| | - Debasish Sarkar
- Department of Physics Malaviya National Institute of Technology Jaipur Rajasthan India
| | - Ashok Shukla
- Solid State and Structural Chemistry Unit Indian Institute of Science Bengaluru India
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Makkar P, Gogoi D, Roy D, Ghosh NN. Dual-Purpose CuFe 2O 4-rGO-Based Nanocomposite for Asymmetric Flexible Supercapacitors and Catalytic Reduction of Nitroaromatic Derivatives. ACS OMEGA 2021; 6:28718-28728. [PMID: 34746566 PMCID: PMC8567344 DOI: 10.1021/acsomega.1c03377] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Energy storage and environmental pollution are two major global concerns in today's scenario. As a result of the momentous exhaustion of fossil fuels, the generation of energy from renewable sources is gaining immense importance. However, the irregular availability of energy from these renewable sources is the major encounter to achieve sustainable energy harvesting technology, yielding efficient but continuous and reliable energy supplies. Apart from the requirement of state-of-the-art heavy-duty technologies such as transportation, defense, etc., in the modern lifestyle to fulfill the demand for flexible electronic devices, the development of high-performance mechanically flexible all-solid-state supercapacitors is increasing massively. On the other hand, to cater to the need for accessibility of clean water for healthy lives, several technologies are evolving to treat wastewater and groundwater. Hence, the development of efficient catalysts for destroying water pollutants is an attractive approach. Considering these two crucial facets, in this paper, we have demonstrated the multifunctional features of a CuFe2O4-rGO nanocomposite, which was exploited to fabricate a high-performance mechanically flexible all-solid-state asymmetric supercapacitor and simultaneously used as an efficient but easily recoverable catalyst for the transformation of different nitroaromatic compounds. We have also demonstrated the conversion of trifluralin (a herbicide), which is present in the water body as a pollutant, to its corresponding amine derivatives, which can be utilized in the preparation of important pharmaceutical products.
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Affiliation(s)
- Priyanka Makkar
- Nano-materials
Lab, Department of Chemistry, Birla Institute
of Technology and Science, Pilani K K Birla Goa Campus, Pilani, Goa 403726, India
| | - Debika Gogoi
- Nano-materials
Lab, Department of Chemistry, Birla Institute
of Technology and Science, Pilani K K Birla Goa Campus, Pilani, Goa 403726, India
| | - Debmalya Roy
- Defence
Materials and Stores Research & Development Establishment (DMSRDE)
DRDO, Ministry of Defence, Government of India, PO DMSRDE, GT Road, Kanpur 208013, India
| | - Narendra Nath Ghosh
- Nano-materials
Lab, Department of Chemistry, Birla Institute
of Technology and Science, Pilani K K Birla Goa Campus, Pilani, Goa 403726, India
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8
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Wang Y, Ai X, Lu S, Xing T, Qi N, Chen G. Fabrication of a type of silk/PEDOT conductive fibers for wearable sensor. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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9
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Plasma-assisted synthesis of MnO2–polyaniline composite for electrochemical sensing of dopamine. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01596-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Deng Y, Wang H, Zhang K, Shao J, Qiu J, Wu J, Wu Y, Yan L. A high-voltage quasi-solid-state flexible supercapacitor with a wide operational temperature range based on a low-cost "water-in-salt" hydrogel electrolyte. NANOSCALE 2021; 13:3010-3018. [PMID: 33508053 DOI: 10.1039/d0nr08437a] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, "water-in-salt" electrolytes have provided a huge boost to the realization of high energy density for water-based supercapacitors by broadening the electrochemical stability window. However, the high cost and low conductivity of high concentration LiTFSI greatly restrict the possibility of practical application. Herein, we adopt a new strategy to develop a low-cost and quasi-solid-state polyelectrolyte hydrogel accommodating a superhigh concentration of CH3COOK through in situ polymerization, avoiding the problem that many conventional polymers cannot accommodate ultra-high ion concentration. The polyelectrolyte hydrogel with 24 M CH3COOK exhibits a conductivity of up to 35.8 mS cm-1 and a stretchability of 950%. With advanced N-doped graphene hydrogel electrodes, the assembled supercapacitor yields a voltage window of 2.1 V with an energy density of 33.0 W h kg-1 and superior cyclability with 88.2% capacitance retention at 4 A g-1 after 6000 cycles comparable to those supercapacitors using high-cost LiTFSI salts. Besides, the supercapacitor with excellent temperature stability in the range of -20 to 70 °C can light an LED for more than one minute. The assembled flexible device with the PAAK/CMC-24 M gel film sandwiched in between demonstrates excellent bendability from 0° to 180° and shows great potential for flexible/wearable electronic devices. Our feasible approach provides a new route for assembling quasi-solid-state flexible high-energy storage devices with "water-in-salt" electrolytes.
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Affiliation(s)
- Yongqi Deng
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, iCHEM, University of Science and Technology of China, China.
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11
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Huang ZN, Liu GC, Zou J, Jiang XY, Liu YP, Yu JG. A hybrid composite of recycled popcorn-shaped MnO2 microsphere and Ox-MWCNTs as a sensitive non-enzymatic amperometric H2O2 sensor. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Yang J, Chen L, Li W, Chen G, Wang L, Zhao S. A novel self-supported structure of Ce-UiO-66/TNF in a redox electrolyte with high supercapacitive performance. J Colloid Interface Sci 2020; 573:55-61. [PMID: 32276231 DOI: 10.1016/j.jcis.2020.03.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022]
Abstract
A novel self-supported structure of Ce-UiO-66/TNF was firstly synthesized by growing Ce-UiO-66 on a TNF substrate. This novel Ce-UiO-66/TNF material was proved to possess a high supercapacitive performance in the redox electrolyte of Fe(CN)63-/4-, and it was also the first study for Ce-UiO-66 material on the supercapacitor application. High specific capacitances of 6.9 and 2.5 Fcm-2 can be achieved at large current densities of 20 and 80 mAcm-2, respectively. After 10,000 charge-discharge cycles, the capacitance retention can be kept at 95% and the coulomb efficiency can be maintained over 98%. Such outstanding electrochemical performance may be related to the redox property of the electrolyte, high specific surface area of the Ce-UiO-66 material, porous characteristic of the TNF substrate and self-supported structure of the whole electrode.
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Affiliation(s)
- Jie Yang
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China.
| | - Leishan Chen
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Weiwei Li
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Gairong Chen
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Lizhen Wang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China.
| | - Shuai Zhao
- Department of Science, Chongqing University of Technology, Chongqing 400054, China
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13
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Nasser R, Zhang GF, Song JM. Facile and low-cost synthesis of cobalt-doped MnO2 decorated with graphene oxide for high performance 2.3 V aqueous asymmetric supercapacitors. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136198] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Makkar P, Ghosh NN. Snowflake-Like Dendritic CoNi Alloy-rGO Nanocomposite as a Cathode Electrode Material for an All-Solid-State Flexible Asymmetric High-Performance Supercapacitor Device. ACS OMEGA 2020; 5:10572-10580. [PMID: 32426615 PMCID: PMC7227048 DOI: 10.1021/acsomega.0c01053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Flexible all-solid-state supercapacitors having high mechanical stability and foldable features are crucial to meet the growing demands for a large number of portable electronic devices such as wearable electronics, displays, touch screens, detectors, etc. Here, we report the fabrication of such a flexible all-solid-state asymmetric supercapacitor device by using a nanocomposite composed of a snowflake-like dendritic CoNi alloy and reduced graphene oxide ((CoNiD)60-rGO40) as the positive electrode and pure rGO as the negative electrode for the first time. In this device, a polyvinyl alcohol (PVA) gel containing 3 M KOH and 0.1 M K4[Fe(CN)6] was used as the electrolyte cum separator. This supercapacitor device offers a high energy density value of 52.8 Wh kg-1 at a power density of 2000 W kg-1. The values of these two key performance parameters are superior to the many commercially available supercapacitors and reported values in the literature. In addition, this device also exhibits retention of ∼95% of its initial specific capacitance value after 4000 cycles at a current density of 2.5 A g-1, displaying its high cycling stability. This supercapacitor is so flexible that no mechanical deformation occurs even after bending at different angles and folding up to 180°, and its specific capacitance value practically remains unaffected when the device was twisted at different bending angles. This flexible all-solid-state asymmetric supercapacitor device can power a light-emitting diode (LED) and demonstrates its promise to meet the practical applications in energy storage technology.
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15
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Das TK, Ganguly S, Remanan S, Ghosh S, Das NC. Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04165-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Wu Y, Li Y, He J, Fang X, Hong P, Nie M, Yang W, Xie C, Wu Z, Zhang K, Kong L, Liu J. Nano-hybrids of needle-like MnO2 on graphene oxide coupled with peroxymonosulfate for enhanced degradation of norfloxacin: A comparative study and probable degradation pathway. J Colloid Interface Sci 2020; 562:1-11. [DOI: 10.1016/j.jcis.2019.11.121] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/24/2019] [Accepted: 11/29/2019] [Indexed: 11/15/2022]
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17
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Ding Y, Xian Q, Wang E, He X, Jiang Z, Dan H, Zhu W. Mesoporous MnO 2/SBA-15 as a synergetic adsorbent for enhanced uranium adsorption. NEW J CHEM 2020. [DOI: 10.1039/d0nj02966a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mesoporous MnO2/SBA-15 composites were prepared via a simple route and were explored as a synergetic adsorbent for adsorption of U(vi).
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Affiliation(s)
- Yi Ding
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Qiang Xian
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Enchao Wang
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Xinmiao He
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Zhengdi Jiang
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Hui Dan
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
| | - Wenkun Zhu
- Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
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18
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Das S, Samanta A, Kole K, Gangopadhyay G, Jana S. MnO2 flowery nanocomposites for efficient and fast removal of mercury(ii) from aqueous solution: a facile strategy and mechanistic interpretation. Dalton Trans 2020; 49:6790-6800. [DOI: 10.1039/d0dt01054e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MnO2 flowery nanocomposites were explored as a novel and cost effective nanoadsorbent for the fast and efficient extraction of toxic inorganic contaminants from aqueous solution.
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Affiliation(s)
- Sankar Das
- Department of Chemical
- Biological & Macro-Molecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 106
- India
| | - Arnab Samanta
- Department of Chemical
- Biological & Macro-Molecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 106
- India
| | - Kanika Kole
- Technical Research Centre
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 106
- India
| | - Gautam Gangopadhyay
- Department of Chemical
- Biological & Macro-Molecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 106
- India
| | - Subhra Jana
- Department of Chemical
- Biological & Macro-Molecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 106
- India
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19
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Sulfur modification of carbon materials as well as the redox additive of Na2S for largely improving capacitive performance of supercapacitors. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Gurusamy L, Anandan S, Liu N, Wu JJ. Synthesis of a novel hybrid anode nanoarchitecture of Bi2O3/porous-RGO nanosheets for high-performance asymmetric supercapacitor. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113489] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Guo J, Ma Y, Zhao K, Wang Y, Yang B, Cui J, Yan X. High‐Performance and Ultra‐Stable Aqueous Supercapacitors Based on a Green and Low‐Cost Water‐In‐Salt Electrolyte. ChemElectroChem 2019. [DOI: 10.1002/celc.201901591] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Junhong Guo
- Department of Chemical Engineering and Technology Institution School of Petrochemical EngineeringLanzhou University of Technology Lanzhou 730050 P. R. China
| | - Yalan Ma
- Department of Chemical Engineering and Technology Institution School of Petrochemical EngineeringLanzhou University of Technology Lanzhou 730050 P. R. China
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid LubricationLanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730050 P. R. China
| | - Kun Zhao
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals School of Materials Science and EngineeringLanzhou University of Technology Lanzhou 730050 P. R. China
| | - Yue Wang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid LubricationLanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730050 P. R. China
- School of Physical Science and Technology Lanzhou University Lanzhou 730050 P. R. China
| | - Baoping Yang
- Department of Chemical Engineering and Technology Institution School of Petrochemical EngineeringLanzhou University of Technology Lanzhou 730050 P. R. China
| | - Jinfeng Cui
- Department of Chemical Engineering and Technology Institution School of Petrochemical EngineeringLanzhou University of Technology Lanzhou 730050 P. R. China
| | - Xingbin Yan
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid LubricationLanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730050 P. R. China
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116000 P. R. China
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22
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Wei C, Zheng X, Li R, Wang X, Xaio Z, Wang L. Mesoporous Hybrid NiCo
2
O
4
/CeO
2
Hierarchical Hollow Spheres for Enhanced Supercapacitors. ChemistrySelect 2019. [DOI: 10.1002/slct.201902778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chengzhen Wei
- Henan Province Key Laboratory of New Opto-Electronic Functional MaterialsCollege of Chemistry and Chemical EngineeringAnyang Normal University Anyang 455000 P. R. China
| | - Xuan Zheng
- Henan Province Key Laboratory of New Opto-Electronic Functional MaterialsCollege of Chemistry and Chemical EngineeringAnyang Normal University Anyang 455000 P. R. China
| | - Ru Li
- Henan Province Key Laboratory of New Opto-Electronic Functional MaterialsCollege of Chemistry and Chemical EngineeringAnyang Normal University Anyang 455000 P. R. China
| | - Xiaorui Wang
- Henan Province Key Laboratory of New Opto-Electronic Functional MaterialsCollege of Chemistry and Chemical EngineeringAnyang Normal University Anyang 455000 P. R. China
| | - Zhenyu Xaio
- Key Laboratory of Eco-chemical EngineeringTaishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Lei Wang
- Key Laboratory of Eco-chemical EngineeringTaishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology Qingdao 266042 P. R. China
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23
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Xiu T, Liu Z, Yang L, Wang Y. Removal of thorium and uranium from aqueous solution by adsorption on hydrated manganese dioxide. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06634-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Himasree P, Durga IK, Krishna T, Rao SS, Muralee Gopi CV, Revathi S, Prabakar K, Kim HJ. One-step hydrothermal synthesis of CuS@MnS on Ni foam for high performance supercapacitor electrode material. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.041] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Hu L, Zhai T, Li H, Wang Y. Redox-Mediator-Enhanced Electrochemical Capacitors: Recent Advances and Future Perspectives. CHEMSUSCHEM 2019; 12:1118-1132. [PMID: 30427120 DOI: 10.1002/cssc.201802450] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/12/2018] [Indexed: 05/25/2023]
Abstract
Supercapacitors deliver exceptional power densities, high cycling stability, and inherent safety but suffer from low energy densities. Many methods to enhance the energy density are based on exploring electrode materials with well-developed structures and designing asymmetric systems with wide voltage windows. The energy density is substantially enhanced at the compromise of power density by utilizing the sluggish kinetics of pseudocapacitive materials. Redox-active electrolytes can contribute additional pseudocapacitance from the reactions of redox mediators at the interface, which have attracted increasing attention of researchers. Redox-mediator-enhanced supercapacitors deliver high energy densities while retaining high power densities. This Minireview highlights the recently prominent progresses of single-, dual-, and ambipolar-redox-mediator-enhanced supercapacitors, the challenges they face, and approaches to suppress self-discharge and develop high-concentration redox-active electrolytes for performance promotion.
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Affiliation(s)
- Lintong Hu
- State Key Laboratory of Material Processing and Die&Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Tianyou Zhai
- State Key Laboratory of Material Processing and Die&Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Huiqiao Li
- State Key Laboratory of Material Processing and Die&Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yonggang Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433, P. R. China
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26
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Sundriyal S, Shrivastav V, Sharma M, Mishra S, Deep A. Redox Additive Electrolyte Study of Mn–MOF Electrode for Supercapacitor Applications. ChemistrySelect 2019. [DOI: 10.1002/slct.201900305] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shashank Sundriyal
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- CSIR-Central Scientific Instrument Organisation (CSIR-CSIO) Chandigarh 160030 India
| | - Vishal Shrivastav
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- CSIR-Central Scientific Instrument Organisation (CSIR-CSIO) Chandigarh 160030 India
| | - Meenu Sharma
- Department of PhysicsNational Institute of Technology Kurukshetra, Haryana India
| | - Sunita Mishra
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- CSIR-Central Scientific Instrument Organisation (CSIR-CSIO) Chandigarh 160030 India
| | - Akash Deep
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- CSIR-Central Scientific Instrument Organisation (CSIR-CSIO) Chandigarh 160030 India
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27
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Lee PY, Lin LY. Synthesizing nickel-based transition bimetallic oxide via nickel precursor-free hydrothermal synthesis for battery supercapacitor hybrid devices. J Colloid Interface Sci 2019; 538:297-307. [DOI: 10.1016/j.jcis.2018.11.108] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 11/20/2018] [Accepted: 11/29/2018] [Indexed: 11/26/2022]
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28
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Thorium adsorption on graphene oxide nanoribbons/manganese dioxide composite material. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06417-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Prasath A, Athika M, Duraisamy E, Sharma AS, Elumalai P. Carbon‐Quantum‐Dot‐Derived Nanostructured MnO
2
and Its Symmetrical Supercapacitor Performances. ChemistrySelect 2018. [DOI: 10.1002/slct.201801950] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Arul Prasath
- Electrochemical Energy and Sensors LabDepartment of Green Energy TechnologyMadanjeet School Green Energy TechnologiesPondicherry University Puducherry-605014 India
| | - Mattath Athika
- Electrochemical Energy and Sensors LabDepartment of Green Energy TechnologyMadanjeet School Green Energy TechnologiesPondicherry University Puducherry-605014 India
| | - Ezhumalai Duraisamy
- Electrochemical Energy and Sensors LabDepartment of Green Energy TechnologyMadanjeet School Green Energy TechnologiesPondicherry University Puducherry-605014 India
| | - Arumugam Selva Sharma
- Electrochemical Energy and Sensors LabDepartment of Green Energy TechnologyMadanjeet School Green Energy TechnologiesPondicherry University Puducherry-605014 India
| | - Perumal Elumalai
- Electrochemical Energy and Sensors LabDepartment of Green Energy TechnologyMadanjeet School Green Energy TechnologiesPondicherry University Puducherry-605014 India
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30
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Chandel M, Moitra D, Makkar P, Sinha H, Hora HS, Ghosh NN. Synthesis of multifunctional CuFe 2O 4-reduced graphene oxide nanocomposite: an efficient magnetically separable catalyst as well as high performance supercapacitor and first-principles calculations of its electronic structures. RSC Adv 2018; 8:27725-27739. [PMID: 35542718 PMCID: PMC9083554 DOI: 10.1039/c8ra05393f] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 07/30/2018] [Indexed: 01/09/2023] Open
Abstract
Here, we report an 'in situ' co-precipitation reduction based synthetic methodology to prepare CuFe2O4 nanoparticle-reduced graphene oxide (CuFe2O4-RGO) nanocomposites. First principles calculations based on Density Functional Theory (DFT) were performed to obtain the electronic structures and properties of CuFe2O4, graphene and CuFe2O4-graphene composites, and to understand the interfacial interaction between CuFe2O4 and graphene in the composite. The synergistic effect, which resulted from the combination of the unique properties of RGO and CuFe2O4 nanoparticles, was exploited to design a magnetically separable catalyst and high performance supercapacitor. It has been demonstrated that the incorporation of RGO in the composite enhanced its catalytic properties as well as supercapacitance performance compared with pure CuFe2O4. The nanocomposite with 96 wt% CuFe2O4 and 4 wt% RGO (96CuFe2O4-4RGO) exhibited high catalytic efficiency towards (i) reduction of 4-nitrophenol to 4-aminophenol, and (ii) epoxidation of styrene to styrene oxide. For both of these reactions, the catalytic efficiency of 96CuFe2O4-4RGO was significantly higher than that of pure CuFe2O4. The easy magnetic separation of 96CuFe2O4-4RGO from the reaction mixture and good reusability of the recovered catalyst also showed here. 96CuFe2O4-4RGO also demonstrated better supercapacitance performance than pure CuFe2O4. 96CuFe2O4-4RGO showed specific capacitance of 797 F g-1 at a current density of 2 A g-1, along with ∼92% retention for up to 2000 cycles. To the best of our knowledge, this is the first investigation on the catalytic properties of CuFe2O4-RGO towards the reduction of 4-nitrophenol and the epoxidation reaction, and DFT calculations on the CuFe2O4-graphene composite have been reported.
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Affiliation(s)
- Madhurya Chandel
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
| | - Debabrata Moitra
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
| | - Priyanka Makkar
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
| | - Harshit Sinha
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
| | - Harshdeep Singh Hora
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
| | - Narendra Nath Ghosh
- Nano-materials Lab, Department of Chemistry, Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa-403726 India +91 832 2557033 +91 832 2580318
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31
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Sundriyal S, Kaur H, Bhardwaj SK, Mishra S, Kim KH, Deep A. Metal-organic frameworks and their composites as efficient electrodes for supercapacitor applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.018] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Gao X, Zu L, Cai X, Li C, Lian H, Liu Y, Wang X, Cui X. High Performance of Supercapacitor from PEDOT:PSS Electrode and Redox Iodide Ion Electrolyte. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E335. [PMID: 29772662 PMCID: PMC5977349 DOI: 10.3390/nano8050335] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/05/2018] [Accepted: 05/09/2018] [Indexed: 11/26/2022]
Abstract
Insufficient energy density and poor cyclic stability is still challenge for conductive polymer-based supercapacitor. Herein, high performance electrochemical system has been assembled by combining poly (3,4-ethylenedioxythiophene) (PEDOT):poly (styrene sulfonate) (PSS) redox electrode and potassium iodide redox electrolyte, which provide the maximum specific capacity of 51.3 mAh/g and the retention of specific capacity of 87.6% after 3000 cycles due to the synergic effect through a simultaneous redox reaction both in electrode and electrolyte, as well as the catalytic activity for reduction of triiodide of the PEDOT:PSS.
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Affiliation(s)
- Xing Gao
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Lei Zu
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
| | - Xiaomin Cai
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Ce Li
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Huiqin Lian
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
- Beijing Key Laboratory of Specialty Elastomer Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
| | - Yang Liu
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
- Beijing Key Laboratory of Specialty Elastomer Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
| | - Xiaodong Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xiuguo Cui
- School of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China.
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33
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Xu Z, Sun S, Cui W, Lv J, Geng Y, Li H, Deng J. Interconnected network of ultrafine MnO2 nanowires on carbon cloth with weed-like morphology for high-performance supercapacitor electrodes. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.138] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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General synthesis of hierarchical C/MOx@MnO2 (M = Mn, Cu, Co) composite nanofibers for high-performance supercapacitor electrodes. J Colloid Interface Sci 2018; 509:235-244. [DOI: 10.1016/j.jcis.2017.09.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 08/31/2017] [Accepted: 09/02/2017] [Indexed: 11/17/2022]
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35
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Wei C, Zhang R, Zheng X, Ru Q, Chen Q, Cui C, Li G, Zhang D. Hierarchical porous NiCo2O4/CeO2 hybrid materials for high performance supercapacitors. Inorg Chem Front 2018. [DOI: 10.1039/c8qi01010b] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hierarchical porous NiCo2O4/CeO2 hybrid materials are successfully synthesized via a simple solvothermal method and subsequent heat treatment and exhibit remarkable electrochemical performances in supercapacitors.
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Affiliation(s)
- Chengzhen Wei
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Rui Zhang
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Xuan Zheng
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Qinglong Ru
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Qingyun Chen
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Can Cui
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Gang Li
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
| | - Daojun Zhang
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang
- People's Republic of China
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36
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Lv H, Gao X, Xu Q, Liu H, Wang YG, Xia Y. Carbon Quantum Dot-Induced MnO 2 Nanowire Formation and Construction of a Binder-Free Flexible Membrane with Excellent Superhydrophilicity and Enhanced Supercapacitor Performance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40394-40403. [PMID: 29072448 DOI: 10.1021/acsami.7b14761] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Manganese oxides (MnO2) are regarded as typical and promising electrode materials for supercapacitors. However, the practical electrochemical performance of MnO2 is far from its theoretical value. Nowadays, numerous efforts are being devoted to the design and preparation of nanostructured MnO2 with the aim of improving its electrochemical properties. In this work, ultralong MnO2 nanowires were fabricated in a process induced by carbon quantum dots (CQDs); subsequently, a binder-free flexible electrode membrane was easily obtained by vacuum filtration of the MnO2 nanowires. The effects of the CQDs not only induced the formation of one-dimensional nanostructured MnO2, but also significantly improved the wettability between electrode and electrolyte. In other words, the MnO2 membrane demonstrated a superhydrophilic character in aqueous solution, indicating the sufficient and abundant contact probability between electrode and electrolyte. The binder-free flexible MnO2 electrode exhibited a preeminent specific capacitance of 340 F g-1 at 1 A g-1; even when the current density reached 20 A g-1, it still maintained 260 F g-1 (76% retention rate compared to that at 1 A g-1). Moreover, it also showed good cycling stability with 80.1% capacity retention over 10 000 cycles at 1 A g-1. Furthermore, an asymmetric supercapacitor was constructed using the MnO2 membrane and active carbon as the positive and negative electrodes, respectively, which exhibited a high energy density of 33.6 Wh kg-1 at 1.0 kW kg-1, and a high power density of 10 kW kg-1 at 12.5 Wh kg-1.
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Affiliation(s)
- Haipeng Lv
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power , Shanghai 200090, China
| | - Xiujiao Gao
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power , Shanghai 200090, China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power , Shanghai 200090, China
| | - Haimei Liu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power , Shanghai 200090, China
| | - Yong-Gang Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University , Shanghai 200433, China
| | - Yongyao Xia
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University , Shanghai 200433, China
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37
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S. SR, Punnoose D, Bae JH, Durga IK, Thulasi-Varma CV, Naresh B, Subramanian A, Raman V, Kim HJ. Preparation and electrochemical performances of NiS with PEDOT:PSS chrysanthemum petal like nanostructure for high performance supercapacitors. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.134] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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39
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Jampaiah D, Velisoju VK, Venkataswamy P, Coyle VE, Nafady A, Reddy BM, Bhargava SK. Nanowire Morphology of Mono- and Bidoped α-MnO 2 Catalysts for Remarkable Enhancement in Soot Oxidation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32652-32666. [PMID: 28862428 DOI: 10.1021/acsami.7b07656] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the present work, nanowire morphologies of α-MnO2, cobalt monodoped α-MnO2, Cu and Co bidoped α-MnO2, and Ni and Co bidoped α-MnO2 samples were prepared by a facile hydrothermal synthesis. The structural, morphological, surface, and redox properties of all the as-prepared samples were investigated by various characterization techniques, namely, scanning electron microscopy (SEM), transmission and high resolution electron microscopy (TEM and HR-TEM), powder X-ray diffraction (XRD), N2 sorption surface area measurements, X-ray photoelectron spectroscopy (XPS), hydrogen-temperature-programmed reduction (H2-TPR), and oxygen-temperature-programmed desorption (O2-TPD). The soot oxidation performance was found to be significantly improved via metal mono- and bidoping. In particular, Cu and Co bidoped α-MnO2 nanowires showed a remarkable improvement in soot oxidation performance, with its T50 (50% soot conversion) values of 279 and 431 °C under tight and loose contact conditions, respectively. The soot combustion activation energy for the Cu and Co bidoped MnO2 nanowires is 121 kJ/mol. The increased oxygen vacancies, greater number of active sites, facile redox behavior, and strong synergistic interaction were the key factors for the excellent catalytic activity. The longevity of Cu and Co bidoped α-MnO2 nanowires was analyzed, and it was found that the Cu/Co bidoped α-MnO2 nanowires were highly stable after five successive cycles and showed an insignificant decrease in soot oxidation activity. Furthermore, the HR-TEM analysis of a spent catalyst after five cycles indicated that the (310) crystal plane of α-MnO2 interacts with the soot particles; therefore, we can assume that more-reactive exposed surfaces positively affect the reaction of soot oxidation. Thus, the Cu and Co bidoped α-MnO2 nanowires provide promise as a highly effective alternative to precious metal based automotive catalysts.
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Affiliation(s)
- Deshetti Jampaiah
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University , GPO BOX 2476, Melbourne, Victoria 3001, Australia
| | - Vijay Kumar Velisoju
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University , GPO BOX 2476, Melbourne, Victoria 3001, Australia
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal Road, Hyderabad 500 007, India
| | | | - Victoria E Coyle
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University , GPO BOX 2476, Melbourne, Victoria 3001, Australia
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University , Riyadh 11451, Saudi Arabia
| | - Benjaram M Reddy
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal Road, Hyderabad 500 007, India
| | - Suresh K Bhargava
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University , GPO BOX 2476, Melbourne, Victoria 3001, Australia
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40
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Chakravarty A, Maiti S, Mahanty S, De G. Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties. ChemistrySelect 2017. [DOI: 10.1002/slct.201601920] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amrita Chakravarty
- Nano-Structured Materials Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Sandipan Maiti
- Fuel Cell & Battery Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Sourindra Mahanty
- Fuel Cell & Battery Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Goutam De
- Nano-Structured Materials Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
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41
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Zuo LX, Jiang LP, Abdel-Halim ES, Zhu JJ. Sonochemical preparation of stable porous MnO 2 and its application as an efficient electrocatalyst for oxygen reduction reaction. ULTRASONICS SONOCHEMISTRY 2017; 35:219-225. [PMID: 27707647 DOI: 10.1016/j.ultsonch.2016.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/10/2016] [Accepted: 09/25/2016] [Indexed: 06/06/2023]
Abstract
Porous MnO2 as a non-noble metal oxygen reduction reaction (ORR) electrocatalyst was prepared by a simple sonochemical route. The as-prepared porous MnO2 exhibited higher electrocatalytic activity, superior stability and better methanol tolerance than commercial Pt/C catalyst in alkaline media. Furthermore, the ORR proceeded via a nearly four-electron pathway. Cyclic voltammetry (CV) and rotating-disk electrode (RDE) measurements verified that the ORR enhancement was attributed to the porous structure and good dispersity, which facilitated sufficient transport of ions, electrons, O2 and other reactants in the process of ORR. The results indicated that a facile and feasible sonochemical route could be used to prepare highly active porous MnO2 electrocatalyst for ORR, which might be promising for direct methanol fuel cells.
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Affiliation(s)
- Ling-Xia Zuo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China
| | - Li-Ping Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China.
| | - E S Abdel-Halim
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China.
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42
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Kumar A, Sanger A, Kumar A, Kumar Y, Chandra R. An efficient α-MnO 2 nanorods forests electrode for electrochemical capacitors with neutral aqueous electrolytes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.168] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Hierarchical cerium oxide derived from metal-organic frameworks for high performance supercapacitor electrodes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.035] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Strontium doped lanthanum manganite/manganese dioxide composite electrode for supercapacitor with enhanced rate capability. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.144] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Pramanik A, Maiti S, Sreemany M, Mahanty S. Carbon Doped MnCo 2 S 4 Microcubes Grown on Ni foam as High Energy Density Faradaic Electrode. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.159] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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47
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Pan N, Li L, Ding J, Li S, Wang R, Jin Y, Wang X, Xia C. Preparation of graphene oxide-manganese dioxide for highly efficient adsorption and separation of Th(IV)/U(VI). JOURNAL OF HAZARDOUS MATERIALS 2016; 309:107-115. [PMID: 26878706 DOI: 10.1016/j.jhazmat.2016.02.012] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/30/2016] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
Manganese dioxide decorated graphene oxide (GOM) was prepared via fixation of crystallographic MnO2 (α, γ) on the surface of graphene oxide (GO) and was explored as an adsorbent material for simultaneous removal of thorium/uranium ions from aqueous solutions. In single component systems (Th(IV) or U(VI)), the α-GOM2 (the weight ratio of GO/α-MnO2 of 2) exhibited higher maximum adsorption capacities toward both Th(IV) (497.5mg/g) and U(VI) (185.2 mg/g) than those of GO. In the binary component system (Th(IV)/U(VI)), the saturated adsorption capacity of Th(IV) (408.8 mg/g)/U(VI) (66.8 mg/g) on α-GOM2 was also higher than those on GO. Based on the analysis of various data, it was proposed that the adsorption process may involve four types of molecular interactions including coordination, electrostatic interaction, cation-pi interaction, and Lewis acid-base interaction between Th(IV)/U(VI) and α-GOM2. Finally, the Th(IV)/U(VI) ions on α-GOM2 can be separated by a two-stage desorption process with Na2CO3/EDTA. Those results displayed that the α-GOM2 may be utilized as an potential adsorbent for removing and separating Th(IV)/U(VI) ions from aqueous solutions.
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Affiliation(s)
- Ning Pan
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Long Li
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jie Ding
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China.
| | - Yongdong Jin
- College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiangke Wang
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, China
| | - Chuanqin Xia
- College of Chemistry, Sichuan University, Chengdu 610064, China; Key Laboratory of Radiation Physics and Technology, Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China.
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48
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Ma Z, Shao G, Fan Y, Wang G, Song J, Shen D. Construction of Hierarchical α-MnO2 Nanowires@Ultrathin δ-MnO2 Nanosheets Core-Shell Nanostructure with Excellent Cycling Stability for High-Power Asymmetric Supercapacitor Electrodes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:9050-8. [PMID: 27010242 DOI: 10.1021/acsami.5b11300] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Poor electrical conductivity and mechanical instability are two major obstacles to realizing high performance of MnO2 as pseudocapacitor material. The construction of unique hierarchical core-shell nanostructures, therefore, plays an important role in the efficient enhancement of the rate capacity and the stability of this material. We herein report the fabrication of a hierarchical α-MnO2 nanowires@ultrathin δ-MnO2 nanosheets core-shell nanostructure by adopting a facile and practical solution-phase technique. The novel hierarchical nanostructures are composed of ultrathin δ-MnO2 nanosheets with a few atomic layers growing well on the surface of the ultralong α-MnO2 nanowires. The first specific capacitance of hierarchical core-shell nanostructure reached 153.8 F g(-1) at the discharge current density of as high as 20 A g(-1), and the cycling stability is retained at 98.1% after 10,000 charge-discharge cycles, higher than those in the literature. The excellent rate capacity and stability of the hierarchical core-shell nanostructures can be attributed to the structural features of the two MnO2 crystals, in which a 1D α-MnO2 nanowire core provides a stable structural backbone and the ultrathin 2D δ-MnO2 nanosheet shell creates more reactive active sites. The synergistic effects of different dimensions also contribute to the superior rate capability.
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Affiliation(s)
- Zhipeng Ma
- College of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, China
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, China
| | - Guangjie Shao
- College of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, China
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, China
| | - Yuqian Fan
- College of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, China
| | - Guiling Wang
- College of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, China
| | - Jianjun Song
- College of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, China
| | - Dejiu Shen
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, China
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49
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Yin C, Yang C, Jiang M, Deng C, Yang L, Li J, Qian D. A Novel and Facile One-Pot Solvothermal Synthesis of PEDOT-PSS/Ni-Mn-Co-O Hybrid as an Advanced Supercapacitor Electrode Material. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2741-2752. [PMID: 26794146 DOI: 10.1021/acsami.5b11022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, a novel and facile one-pot method has been developed for the synthesis of a hybrid consisting of Ni-Mn-Co ternary oxide and poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT-PSS/NMCO) with a hierarchical three-dimensional net structure via a solvothermal-coprecipitation coupled with oxidative polymerization route. Apart from the achievement of polymerization, coprecipitation, and solvothermal in one pot, the hydroxyl (OH(-)) ions generated from the oxidative polymerization of organic monomer by neutral KMnO4 solution were skillfully employed as precipitants for metal ions. As compared with the PEDOT-PSS/Ni-Mn binary oxide, PEDOT-PSS/Co-Mn binary oxide, and PEDOT-PSS/MnO2, PEDOT-PSS1.5/NMCO exhibits overwhelmingly superior supercapacitive performance, more specifically, a high specific capacitance of 1234.5 F g(-1) at a current density of 1 A g(-1), a good capacitance retention of 83.7% at a high current density of 5 A g(-1) after 1000 cycles, an energy density of 51.9 W h kg(-1) at a power density of 275 W kg(-1), and an energy density of 21.4 W h kg(-1) at an extremely elevated power density of 5500 W kg(-1). Noticeably, the energy density and power density of PEDOT-PSS/NMCO are by far higher than those of the existing analogues recently reported. The exceptional performance of PEDOT-PSS/NMCO benefits from its unique mesoporous architecture, which could provide a larger reaction surface area, faster ion and electron transfer ability, and good structural stability. The desirable integrated performance enables the multicomponent composite to be a promising electrode material for energy storage applications.
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Affiliation(s)
- Chengjie Yin
- College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, P.R. China
| | - Chunming Yang
- College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, P.R. China
| | - Min Jiang
- College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, P.R. China
| | - Cuifen Deng
- College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, P.R. China
| | - Lishan Yang
- College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, P.R. China
| | - Junhua Li
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R. China
| | - Dong Qian
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R. China
- State Key Laboratory of Powder Metallurgy, Central South University , Changsha 410083, P.R. China
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50
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Zhong C, Deng Y, Hu W, Qiao J, Zhang L, Zhang J. A review of electrolyte materials and compositions for electrochemical supercapacitors. Chem Soc Rev 2016; 44:7484-539. [PMID: 26050756 DOI: 10.1039/c5cs00303b] [Citation(s) in RCA: 1030] [Impact Index Per Article: 128.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Electrolytes have been identified as some of the most influential components in the performance of electrochemical supercapacitors (ESs), which include: electrical double-layer capacitors, pseudocapacitors and hybrid supercapacitors. This paper reviews recent progress in the research and development of ES electrolytes. The electrolytes are classified into several categories, including: aqueous, organic, ionic liquids, solid-state or quasi-solid-state, as well as redox-active electrolytes. Effects of electrolyte properties on ES performance are discussed in detail. The principles and methods of designing and optimizing electrolytes for ES performance and application are highlighted through a comprehensive analysis of the literature. Interaction among the electrolytes, electro-active materials and inactive components (current collectors, binders, and separators) is discussed. The challenges in producing high-performing electrolytes are analyzed. Several possible research directions to overcome these challenges are proposed for future efforts, with the main aim of improving ESs' energy density without sacrificing existing advantages (e.g., a high power density and a long cycle-life) (507 references).
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Affiliation(s)
- Cheng Zhong
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Yida Deng
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China
| | - Wenbin Hu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China
| | - Jinli Qiao
- School of Environmental Engineering, Donghua University, Shanghai, China
| | - Lei Zhang
- Energy, Mining & Environment, National Research Council of Canada, Vancouver, BC, Canada
| | - Jiujun Zhang
- Energy, Mining & Environment, National Research Council of Canada, Vancouver, BC, Canada
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