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Yang JL, Zhang WB, Chai SS, Theint MM, Yin Y, Yang ZQ, Li JJ, Yi YH, Ma XJ. A geopolymer membrane for application in a structural mechanics and energy storage difunctional supercapacitor. Phys Chem Chem Phys 2023; 25:24448-24458. [PMID: 37655724 DOI: 10.1039/d3cp03017b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
A structural mechanics and energy storage difunctional supercapacitor based on a geopolymer membrane injected with a 0.5 M Na2SO4 electrolyte and a pseudocapacitive electrode Mn7O13 is designed and assembled. The geopolymer membrane is prepared as a structural electrolyte with metakaolin and alkaline activator solution. The wide channels in the geopolymer matrix provide paths for ion movement. The Mn7O13 electrode is prepared by different hydrothermal treatments at different temperatures and times, and assembled with activated carbon and a geopolymer with different moduli to form a difunctional supercapacitor. The results show that the electrode sample annealed at 300 °C for 45 min after hydrothermal treatment at 160 °C for 24 h exhibits the best comprehensive performance. The specific capacitance of the electrode is 175.5 F g-1 (2392.6 F m-2) at 1 A g-1, and the specific capacitance of the difunctional structure supercapacitor assembled with a geopolymer with a modulus of 1.2 and cured for 28 days is 144.12 F g-1 (1960.0F m-2) at 1 A g-1 under 15 MPa.
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Affiliation(s)
- Jing-Lei Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Wei-Bin Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Shan-Shan Chai
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Myat Myintzu Theint
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
- Mineral Development Section for International Relation, Department of Mines and Ministry of Natural Resources and Environmental, Nay Pyi Taw 15011, Myanmar
| | - Yi Yin
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Ze-Qin Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Jia-Jun Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Yu-Hui Yi
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Xue-Jing Ma
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
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Islam MS, Mazumder AAM, Sohag MU, Sarkar MMH, Stampfl C, Park J. Growth mechanisms of monolayer hexagonal boron nitride ( h-BN) on metal surfaces: theoretical perspectives. NANOSCALE ADVANCES 2023; 5:4041-4064. [PMID: 37560434 PMCID: PMC10408602 DOI: 10.1039/d3na00382e] [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: 06/02/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023]
Abstract
Two-dimensional hexagonal boron nitride (h-BN) has appeared as a promising material in diverse areas of applications, including as an excellent substrate for graphene devices, deep-ultraviolet emitters, and tunneling barriers, thanks to its outstanding stability, flat surface, and wide-bandgap. However, for achieving such exciting applications, controllable mass synthesis of high-quality and large-scale h-BN is a precondition. The synthesis of h-BN on metal surfaces using chemical vapor deposition (CVD) has been extensively studied, aiming to obtain large-scale and high-quality materials. The atomic-scale growth process, which is a prerequisite for rationally optimizing growth circumstances, is a key topic in these investigations. Although theoretical investigations on h-BN growth mechanisms are expected to reveal numerous new insights and understandings, different growth methods have completely dissimilar mechanisms, making theoretical research extremely challenging. In this article, we have summarized the recent cutting-edge theoretical research on the growth mechanisms of h-BN on different metal substrates. On the frequently utilized Cu substrate, h-BN development was shown to be more challenging than a simple adsorption-dehydrogenation-growth scenario. Controlling the number of surface layers is also an important challenge. Growth on the Ni surface is controlled by precipitation. An unusual reaction-limited aggregation growth behavior has been seen on interfaces having a significant lattice mismatch to h-BN. With intensive theoretical investigations employing advanced simulation approaches, further progress in understanding h-BN growth processes is predicted, paving the way for guided growth protocol design.
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Affiliation(s)
- Md Sherajul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
- Department of Electrical and Biomedical Engineering, University of Nevada Reno NV 89557 USA
| | | | - Minhaz Uddin Sohag
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
| | - Md Mosarof Hossain Sarkar
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
| | - Catherine Stampfl
- School of Physics, The University of Sydney New South Wales 2006 Australia
| | - Jeongwon Park
- Department of Electrical and Biomedical Engineering, University of Nevada Reno NV 89557 USA
- School of Electrical Engineering and Computer Science, University of Ottawa Ottawa ON K1N 6N5 Canada
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Joseph XB, Baby JN, Wang SF, George M. Emerging carbonate anion intercalated- ZnCr-layered double hydroxide/vanadium carbide nanocomposite: Sustainable design strategies based on disposal electrochemical sensor for diethofencarb fungicide monitoring. CHEMOSPHERE 2023:139099. [PMID: 37270040 DOI: 10.1016/j.chemosphere.2023.139099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/14/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Diethofencarb (DFC) is widely used in agriculture to fight against plant fungal attacks and enhance food crop production. On the other hand, the National food safety standard has set the overall maximum residual limit (MRL) of DFC to be 1 mg/kg. Hence it becomes essential to limit their usage, and it is vital to quantify the amount of DFC present in real-life samples to safeguard the health and environmental well-being. Here, we introduce a simple hydrothermal procedure for preparing vanadium carbide (VC) anchored by ZnCr-LDH. The sustainably designed electrochemical sensor for the detection of DFC portrayed high electro-active surface area, conductivity, rapid-electron transport ratio, and high ion diffusion parameters. The obtained structural and morphological information confirms the enriched electrochemical activity of the ZnCr-LDH/VC/SPCE towards DFC. The ZnCr-LDH/VC/SPCE electrode has displayed exceptional characteristics with DPV resulting in a vast linear response (0.01-228 μM), and lower LOD (2 nM) with high sensitivity. Real-sample analysis was carried out to demonstrate the specificity of the electrode with an acceptable recovery in both water (±98.75-99.70%) and tomato (±98.00-99.75%) samples.
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Affiliation(s)
- Xavier Benadict Joseph
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Jeena N Baby
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, 600086, Tamil Nadu, India; Department of Chemistry, St. Mary's College, Sulthan Bathery, Wayanad, Kerala, 673592, India
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106, Taiwan.
| | - Mary George
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, 600086, Tamil Nadu, India
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Tang J, Yuan H, Duan Q, Liu Y, Wang Y, Yuan S. Phosphorus-functionalized low-crystallinity transition-metal oxide nanorod arrays grown on carbon cloth for high-performance asymmetric supercapacitors. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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George A, Dhayal Raj A, Albert Irudayaraj A, Josephine RL, Venci X, John Sundaram S, Rajakrishnan R, Kuppusamy P, Kaviyarasu K. Regeneration study of MB in recycling runs over nickel vanadium oxide by solvent extraction for photocatalytic performance for wastewater treatments. ENVIRONMENTAL RESEARCH 2022; 211:112970. [PMID: 35219632 DOI: 10.1016/j.envres.2022.112970] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Recently, researchers are concentrating on the synthesis of composite materials to enhance the efficiency of the materials in various applications. In this work, nickel vanadium oxide (NiV2O6) nanocomposite material is prepared via two methods and the prepared samples have been characterized with basic studies to analyse the effect of preparation method and the reaction time. The XRD studies reveal a polycrystalline growth in both the methods. The broad XRD peaks obtained for samples prepared via hydrothermal method suggests the size reduction and 1D nanostructure formation. The SEM analysis shows the formation of 1D structures in hydrothermal and 3D microsphere structures in solvothermal methods. The possible formation mechanism behind this formation has been discussed in this manuscript. The FTIR peaks in the fingerprint region confirm the formation and vibration of metal-oxygen bonds. The large optical bandgap values obtained from Tauc plot again confirms the formation of nanostructures of the synthesized samples. The photocatalytic activity of nickel vanadium oxide on methylene blue dye under halogen light were performed and, the recyclability of the sample is investigated. It was found from the photocatalytic spectrum that, the samples prepared from both the methods shows a degradation efficiency of more than 80% within 150 min. It was confirmed that the prepared NiV2O6 photocatalyst samples does not lose their degradation ability even after five cycles of repeated usage.
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Affiliation(s)
- Amal George
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - A Dhayal Raj
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India.
| | - A Albert Irudayaraj
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - R L Josephine
- Department of Electrical and Electronics Engineering, National Institute of Technology (NIT), Trichy, Tamil Nadu, India
| | - X Venci
- Department of Physics, Auxilium College, Vellore, Vellore District, Tamil Nadu, 632006, India
| | - S John Sundaram
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - R Rajakrishnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Palaniselvam Kuppusamy
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, 54896, South Korea
| | - K Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa.
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Naderi L, Shahrokhian S. Cobalt vanadium chalcogenide microspheres decorated with dendrite-like fiber nanostructures for flexible wire-typed energy conversion and storage microdevices. NANOSCALE 2022; 14:9150-9168. [PMID: 35723639 DOI: 10.1039/d2nr01247b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The increasing energy demand for next-generation portable and miniaturized electronics has drawn tremendous attention to develop microscale energy storage and conversion devices with light weight and flexible characteristics. Herein, we report the preparation of flower-like cobalt vanadium selenide/nickel copper selenide (CoVSe/NiCuSe) microspheres with three-dimensional hierarchical structure of micropore growth on copper wire for a flexible fiber microsupercapacitor (microSC) and overall water splitting. The CoV-LDH microspheres are anchored on the dendrite-like NiCu nanostructured Cu wire using a hydrothermal method (CoV-LDH/NiCu@CW). The sulfidation and selenization of CoV-LDH/NiCu was carried out through the ion-exchange reaction of OH- with sulfide and selenide ions to obtain CoVS/NiCuS@CW and CoVSe/NiCuSe@CW electrodes, respectively. Benefitting from the unique structure, the flower-like CoVSe/NiCuSe@CW microspheres exhibit better electrochemical performance compared with other as-prepared fiber-shaped electrodes. As an electrode active material for microSC, CoVSe/NiCuSe microspheres exhibit a specific capacitance of 35.40 F cm-3 at 4 mA cm-2, and maintain 281.25 F cm-3 even at a high current density of 83 mA cm-2, indicating outstanding charge storage capacitance and excellent rate capability. Moreover, the assembled flexible solid-state asymmetric microSCs based on flower-like CoVSe/NiCuSe microspheres-coated Cu wire as the positive electrode and polypyrrole/reduced graphene oxide-coated carbon fiber as the negative electrode manifests a maximum energy density of 20.17 mW h cm-3 at a power density of 624.32 mW cm-3 and remarkable cycling stability (96.7% after 5000 cycles) with good mechanical stability. As an electrocatalyst for oxygen and hydrogen evolution reactions in alkaline medium, the CoVSe/NiCuSe electrode delivers an overpotential of 297 mV and 165 mV at 100 mA cm-2. Furthermore, the CoVSe/NiCuSe-based electrolysis cell for overall water splitting presents a low cell voltage (1.7 V at 50 mA cm-2) as well as high durability.
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Affiliation(s)
- Leila Naderi
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran.
| | - Saeed Shahrokhian
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran.
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Barik R, Barik G, Tanwar V, Ingole PP. Supercapacitor performance and charge storage mechanism of brannerite type CuV2O6/PANI nanocomposites synthesis with their theoretical aspects. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Oxygen-defect-rich 3D porous cobalt-gallium layered double hydroxide for high-performance supercapacitor application. J Colloid Interface Sci 2021; 608:1837-1845. [PMID: 34742092 DOI: 10.1016/j.jcis.2021.10.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/22/2021] [Accepted: 10/18/2021] [Indexed: 11/24/2022]
Abstract
In this work, oxygen-defect-rich, three-dimensional (3D) cobalt-gallium layered double hydroxides (Co0.50-Ga0.50-LDH) assembled by porous and ultrathin nanosheets are prepared by a simple one-step strategy. Briefly, an aqueous solution containing Co2+ and Ga3+ is quickly pouring into the aqueous solution of hexamethylenetetramine, the state-of-the-art LDH was obtained followed by a mild and fast hydrothermal reaction. This mild and rapid synthesis strategy introduces a large number of pores into the ultrathin LDH nanosheets, resulting in a high concentration of oxygen vacancies in the Co0.50-Ga0.50-LDH, and the concentration of oxygen vacancies can be arbitrarily modulated, which has been corroborated by X-ray photoelectron spectroscopy and electron spin resonance measurements. The synergistic effect of the oxygen vacancy and the introduced Ga ions in the LDH nanosheets enhances the adsorption of the LDH nanosheets on OH-, endowing Co0.50-Ga0.50-LDH with outstanding performance for the supercapacitor application. Co0.50-Ga0.50-LDH offers a high specific capacity (0.62C·cm-2) at 10 mV·s-1 and extraordinary cycling stability. An aqueous asymmetric supercapacitor (ASC) constructed with Co0.50-Ga0.50-LDH and activated carbon (AC) materials exhibits high energy density and a long lifespan. This result encourages the wide application of porous ultrathin LDH nanosheets in energy storage, catalysis and light response.
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Abstract
Abstract
In the last years, supercapacitors (SCs) have been proposed as a promising alternative to cover the power density deficiency presented in batteries. Electrical double-layer SCs, pseudocapacitors, and hybrid supercapacitors (HSCs) have shown very attractive features such as high-power density, long cycle life, and tunable specific capacitance. The advances of these energy storage devices made by transition metal oxides (TMOs) and their production in pseudocapacitors and HSCs depend on chemical composition, crystalline structure, morphology, theoretical capacitance, and oxidation states. In this way, this critical review considers several metal oxides (RuO2, MnO2, V2O5, and Co3O4) and their different configurations with diverse carbon-based materials. Energy storage mechanisms and fundamental principles to understand the promising effect of metal oxides in SCs devices are thoroughly described. Special attention as regards to the energy storage mechanisms relative to the specific capacitance values is presented in the reviewed articles. This review envisages the TMO as a key component to obtain high specific capacitance SCs.
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Xu J, Cai E, Zhang S, Fan X, Wang M, Lou F, Wang M, Wang X, Xu L. Nickel-vanadium layered double hydroxide nanosheets as the saturable absorber for a passively Q-switched 2 µm solid-state laser. APPLIED OPTICS 2021; 60:1851-1855. [PMID: 33690273 DOI: 10.1364/ao.413803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Nickel-vanadium (NiV)-layered double hydroxide (LDH) was fabricated into a novel saturable absorber (SA) by the liquid phase exfoliation method and utilized as the laser modulator for the first time, to our best knowledge. We investigated a passive Q-switched Tm:YAG ceramic laser at 2 µm with the NiV-LDH SA. Under an absorbed pump power of 7.2 W, the shortest pulse width of 398 ns was obtained with an average output power of 263 mW and a pulse repetition frequency of 101.8 kHz, corresponding to a single pulse energy at 2.30 µJ. The results indicate that the NiV-LDH SA has great research potential in the field of laser modulation.
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Nguyen TKN, Dumait N, Grasset F, Cordier S, Berthebaud D, Matsui Y, Ohashi N, Uchikoshi T. Zn-Al Layered Double Hydroxide Film Functionalized by a Luminescent Octahedral Molybdenum Cluster: Ultraviolet-Visible Photoconductivity Response. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40495-40509. [PMID: 32786251 DOI: 10.1021/acsami.0c10487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel UV-Vis photodetector consisting of an octahedral molybdenum cluster-functionalized Zn2Al layered double hydroxide (LDH) has been successfully synthesized by co-precipitation and delamination methods under ambient conditions. The electrophoretic deposition process has been used as a low-cost, fast, and effective method to fabricate thin and transparent nanocomposite films containing a dense and regular layered structure. The study provided evidence that the presence of the Mo6 cluster units between the LDH does not affect the ionic conduction mechanism of the LDH, which linearly depends on the relative humidity and temperature. Moreover, the photocurrent response is remarkably extended to the visible domain. The reproducibility and stabilization of the photocurrent response caused by the Mo6 cluster-functionalized LDH have been verified upon light excitation at 540 nm. Additionally, it was demonstrated that the films show advantageously strong adherence properties for application requirements.
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Affiliation(s)
- Thi Kim Ngan Nguyen
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- CNRS-Saint-Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Noée Dumait
- Univ. Rennes-CNRS-Institut des Sciences Chimiques de Rennes, UMR 6226, 35000 Rennes, France
| | - Fabien Grasset
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- CNRS-Saint-Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Univ. Rennes-CNRS-Institut des Sciences Chimiques de Rennes, UMR 6226, 35000 Rennes, France
| | - Stéphane Cordier
- Univ. Rennes-CNRS-Institut des Sciences Chimiques de Rennes, UMR 6226, 35000 Rennes, France
| | - David Berthebaud
- CNRS-Saint-Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yoshio Matsui
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Naoki Ohashi
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- CNRS-Saint-Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Tetsuo Uchikoshi
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- CNRS-Saint-Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Chodankar NR, Pham HD, Nanjundan AK, Fernando JFS, Jayaramulu K, Golberg D, Han YK, Dubal DP. True Meaning of Pseudocapacitors and Their Performance Metrics: Asymmetric versus Hybrid Supercapacitors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002806. [PMID: 32761793 DOI: 10.1002/smll.202002806] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/12/2020] [Indexed: 05/13/2023]
Abstract
The development of pseudocapacitive materials for energy-oriented applications has stimulated considerable interest in recent years due to their high energy-storing capacity with high power outputs. Nevertheless, the utilization of nanosized active materials in batteries leads to fast redox kinetics due to the improved surface area and short diffusion pathways, which shifts their electrochemical signatures from battery-like to the pseudocapacitive-like behavior. As a result, it becomes challenging to distinguish "pseudocapacitive" and "battery" materials. Such misconceptions have further impacted on the final device configurations. This Review is an earnest effort to clarify the confusion between the battery and pseudocapacitive materials by providing their true meanings and correct performance metrics. A method to distinguish battery-type and pseudocapacitive materials using the electrochemical signatures and quantitative kinetics analysis is outlined. Taking solid-state supercapacitors (SSCs, only polymer gel electrolytes) as an example, the distinction between asymmetric and hybrid supercapacitors is discussed. The state-of-the-art progress in the engineering of active materials is summarized, which will guide for the development of real-pseudocapacitive energy storage systems.
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Affiliation(s)
- Nilesh R Chodankar
- Department of Energy & Materials Engineering, Dongguk University, Seoul, 100-715, Republic of Korea
| | - Hong Duc Pham
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Ashok Kumar Nanjundan
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Joseph F S Fernando
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Kolleboyina Jayaramulu
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu, Jammu & Kashmir, 181221, India
| | - Dmitri Golberg
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Young-Kyu Han
- Department of Energy & Materials Engineering, Dongguk University, Seoul, 100-715, Republic of Korea
| | - Deepak P Dubal
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
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Gao X, Wang P, Pan Z, Claverie JP, Wang J. Recent Progress in Two-Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors. CHEMSUSCHEM 2020; 13:1226-1254. [PMID: 31797566 DOI: 10.1002/cssc.201902753] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/28/2019] [Indexed: 06/10/2023]
Abstract
High-performance supercapacitors have attracted great attention due to their high power, fast charging/discharging, long lifetime, and high safety. However, the generally low energy density and overall device performance of supercapacitors limit their applications. In recent years, the design of rational electrode materials has proven to be an effective pathway to improve the capacitive performances of supercapacitors. Layered double hydroxides (LDHs), have shown great potential in new-generation supercapacitors, due to their unique two-dimensional layered structures with a high surface area and tunable composition of the host layers and intercalation species. Herein, recent progress in LDH-based, LDH-derived, and composite-type electrode materials targeted for applications in supercapacitors, by tuning the chemical/metal composition, growth morphology, architectures, and device integration, is reviewed. The complicated relationships between the composition, morphology, structure, and capacitive performance are presented. A brief projection is given for the challenges and perspectives of LDHs for energy research.
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Affiliation(s)
- Xiaorui Gao
- School of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu, Jiangsu, 215500, PR China
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Peikui Wang
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Jerome P Claverie
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
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