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Bandas C, Nicolaescu M, Popescu MI, Orha C, Căprărescu S, Lazau C. One-Step Microwave-Assisted Hydrothermal Preparation of Zn-ZnO(Nw)-rGO Electrodes for Supercapacitor Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4536. [PMID: 37444850 DOI: 10.3390/ma16134536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
Zn-ZnO(Nw)-rGO hybrid electrodes for supercapacitor applications were successfully prepared in situ by a one-step microwave-assisted hydrothermal method by deposition of reduced graphene oxide (rGO) on the structure of ZnO nanowires grown on the Zn foil. During the hydrothermal treatment, two processes occur the reduction of graphene oxide (GO) and the deposition of rGO on the Zn-ZnO(Nw) support. The growth of ZnO nanowires was achieved by thermal oxidation below the melting point of the Zn foil in a controlled atmosphere. The as-obtained electrodes were assessed for structural, optical, and morphological properties by X-ray diffraction, Raman spectroscopy, ultraviolet-visible spectroscopy, SEM microscopy, and EDX analysis. The supercapacitor properties of the Zn-ZnO(Nw)-rGO hybrid electrodes were investigated by cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge-discharge analysis. The CV curve reveals that the Zn-ZnO(Nw)-rGO hybrid structures work as negative electrodes and exhibit a non-ideal rectangle-like shape, suggesting that the as-synthesized structure behaves as a pseudo-capacitor. A maximum capacitance was determined to be 395.79 mF cm-2 at a scan rate of 5 mV s-1. Based on GCD analysis, the maximum specific capacitance of 145.59 mF cm-2 was achieved at a low power density of 2 mA cm-2. The cycle life assessment of the Zn-ZnO(Nw)-rGO hybrid electrode over a 250-cycle number was performed by CV and GCD analysis. The maximum retention rate of 120.86% was achieved from GCD analysis over 250 cycles for the Zn-ZnO(Nw)-rGO hybrid electrode.
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Affiliation(s)
- Cornelia Bandas
- Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 1 Plautius Andronescu Street, 300254 Timisoara, Romania
| | - Mircea Nicolaescu
- Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 1 Plautius Andronescu Street, 300254 Timisoara, Romania
- Department of Materials and Manufacturing Engineering, Faculty of Mechanical Engineering, Politehnica University of Timisoara Mihai Viteazu 1, 300222 Timisoara, Romania
| | - Mina Ionela Popescu
- Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 1 Plautius Andronescu Street, 300254 Timisoara, Romania
- Department of Applied Chemistry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, Blv. Vasile Parvan 6, 300223 Timisoara, Romania
| | - Corina Orha
- Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 1 Plautius Andronescu Street, 300254 Timisoara, Romania
| | - Simona Căprărescu
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Polizu Street No. 1-7, 011061 Bucharest, Romania
| | - Carmen Lazau
- Condensed Matter Department, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 1 Plautius Andronescu Street, 300254 Timisoara, Romania
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Arya N, Verma D, Balakrishnan V. Fabrication of vertically aligned CNT- vanadium oxide hybrid architecture with enhanced compressibility and supercapacitor performance. NANOTECHNOLOGY 2023; 34:115401. [PMID: 36595266 DOI: 10.1088/1361-6528/aca619] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
The demand for energy storage devices in wearable electronics effectuates a requisition for compressible and flexible supercapacitors with high performance and mechanical reliability. We report the fabrication of vanadium oxide hybrid with VACNT and its electrochemical supercapacitor performance along with the compression response. Compressive modulus of 730 ± 40 kPa is obtained for bare VACNT forest whereas its hybrid with vanadium oxide shows a compressive modulus of 240 ± 60 kPa. Controlled CVD process enabled the formation of porous CNT architecture coated with vanadium oxide particles due to the simultaneous reduction of V2O5and partial oxidation of CNT forest. Vanadium oxide decorated on vertically aligned carbon nanotubes acts as the active material for supercapacitor applications. A 17 folds increase in areal capacitance and 36 folds increase in volumetric capacitance are observed on depositing vanadium oxide particles on the VACNT forest. High coulombic efficiency of 97.8% is attained even after 10 000 charge-discharge cycles indicating the high stability of the hybrid.
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Affiliation(s)
- Nitika Arya
- School of Engineering, Indian Institute of Technology, Mandi, Himachal Pradesh, 175075, India
| | - Divya Verma
- School of Engineering, Indian Institute of Technology, Mandi, Himachal Pradesh, 175075, India
| | - Viswanath Balakrishnan
- School of Engineering, Indian Institute of Technology, Mandi, Himachal Pradesh, 175075, India
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Ma Q, Cui F, Zhang J, Cui T. Built-in electric field boosted ionic transport kinetics in the heterostructured ZnCo2O4/ZnO nanobelts for high-performance supercapacitor. J Colloid Interface Sci 2023; 629:649-659. [DOI: 10.1016/j.jcis.2022.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/25/2022] [Accepted: 09/02/2022] [Indexed: 10/14/2022]
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Shuaib U, Hussain T, Ahmad R, Imranullah M, Amjad M, Yasin A, Shakir I, Kang DJ. Novel synthesis of nickel oxide-copper hexacyanoferrate binary hybrid nanocomposite for high-performance supercapacitor application. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05357-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Wang J, Wang G, Wang S, Hao J, Liu B. Preparation of ZnCo
2
O
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Nanosheets Coated on evenly arranged and fully separated Nanowires with high capacitive and photocatalytic properties by a One‐Step Low‐Temperature Water bath method. ChemistrySelect 2022. [DOI: 10.1002/slct.202200472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jing Wang
- School of Light Industry Harbin University of Commerce Harbin 150028 PR China
| | - Gang Wang
- School of Light Industry Harbin University of Commerce Harbin 150028 PR China
| | - Shen Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 PR China
| | - Jian Hao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Ningxia 750021 People's Republic of China
| | - Baosheng Liu
- Research Centre for Materials Science and Engineering Guangxi University of Science and Technology Liuzhou 545006 China
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Nano/Micro and Bio-Inspired Materials on Wide-Bandgap-Semiconductor-Based Optoelectronic/Power Devices. CRYSTALS 2022. [DOI: 10.3390/cryst12010067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This Special Issue on “Nano/Micro and Bio-Inspired Materials on Wide-Bandgap-Semiconductor-Based Optoelectronic/Power Devices” is a collection of 20 original articles dedicated to theoretical and experimental research works providing new insights and practical findings in the field of solid-state technology-related topics [...]
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Prasad K, Rajasekhara Reddy G, Manjula G, Park SH, Suh Y, Purusottam Reddy B, Mallikarjuna K, Deva Prasad Raju B. Morphological transformation of rod-like to pebbles-like CoMoO4 microstructures for energy storage devices. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2021.111382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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A Comparative Evaluation of Sustainable Binders for Environmentally Friendly Carbon-Based Supercapacitors. NANOMATERIALS 2021; 12:nano12010046. [PMID: 35009996 PMCID: PMC8746753 DOI: 10.3390/nano12010046] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/20/2021] [Accepted: 12/20/2021] [Indexed: 01/23/2023]
Abstract
Environmentally friendly energy storage devices have been fabricated by using functional materials obtained from completely renewable resources. Gelatin, chitosan, casein, guar gum and carboxymethyl cellulose have been investigated as sustainable and low-cost binders within the electrode active material of water-processable symmetric carbon-based supercapacitors. Such binders are selected from natural-derived materials and industrial by-products to obtain economic and environmental benefits. The electrochemical properties of the devices based on the different binders are compared by using cyclic voltammetry, galvanostatic charge/discharge curves and impedance spectroscopy. The fabricated supercapacitors exhibit series resistance lower than a few ohms and values of the specific capacitance ranged between 30 F/g and 80 F/g. The most performant device can deliver ca. 3.6 Wh/kg of energy at a high power density of 3925 W/kg. Gelatin, casein and carboxymethyl cellulose-based devices have shown device stability up to 1000 cycles. Detailed analysis on the charge storage mechanisms (e.g., involving faradaic and non-faradaic processes) at the electrode/electrolyte interface reveals a pseudocapacitance behavior within the supercapacitors. A clear correlation between the electrochemical performances (e.g., cycle stability, capacitance retention, series resistance value, coulombic efficiency) ageing phenomena and charge storage mechanisms within the porous carbon-based electrode have been discussed.
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Chang HW, Dong CL, Chen YH, Xu YZ, Huang TC, Chen SC, Liu FJ, Lai YH, Tsai YC. Extended Graphite Supported Flower-like MnO 2 as Bifunctional Materials for Supercapacitors and Glucose Sensing. NANOMATERIALS 2021; 11:nano11112881. [PMID: 34835646 PMCID: PMC8623433 DOI: 10.3390/nano11112881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 11/17/2022]
Abstract
A simple, efficient, and cost-effective extended graphite as a supporting platform further supported the MnO2 growth for the construction of hierarchical flower-like MnO2/extended graphite. MnO2/extended graphite exhibited an increase in sp2 carbon bonds in comparison with that of extended graphite. It can be expected to display better electrical conductivity and further promote electron/ion transport kinetics for boosting the electrochemical performance in supercapacitors and glucose sensing. In supercapacitors, MnO2/extended graphite delivered an areal capacitance value of 20.4 mF cm−2 at 0.25 mA cm−2 current densities and great cycling stability (capacitance retention of 83% after 1000 cycles). In glucose sensing, MnO2/extended graphite exhibited a good linear relationship in glucose concentration up to about 5 mM, sensitivity of 43 μA mM−1cm−2, and the limit of detection of 0.081 mM. It is further concluded that MnO2/extended graphite could be a good candidate for the future design of synergistic multifunctional materials in electrochemical techniques.
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Affiliation(s)
- Han-Wei Chang
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
- Pesticide Analysis Center, National United University, Miaoli 360302, Taiwan
- Correspondence: (H.-W.C.); (Y.-H.L.); (Y.-C.T.); Tel.: +886-37-382216 (H.-W.C.); +886-37-382206 (Y.-H.L.); +886-4-22857257 (Y.-C.T.); Fax: +886-37-382189 (H.-W.C.); +886-37-382189 (Y.-H.L.); +886-4-22854734 (Y.-C.T.)
| | - Chung-Li Dong
- Department of Physics, Tamkang University, Tamsui, New Taipei City 25137, Taiwan;
| | - Yan-Hua Chen
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
| | - Yuan-Zhang Xu
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
| | - Tzu-Chi Huang
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
| | - Song-Chi Chen
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
| | - Feng-Jiin Liu
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
- Pesticide Analysis Center, National United University, Miaoli 360302, Taiwan
| | - Yin-Hung Lai
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan; (Y.-H.C.); (Y.-Z.X.); (T.-C.H.); (S.-C.C.); (F.-J.L.)
- Pesticide Analysis Center, National United University, Miaoli 360302, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- Correspondence: (H.-W.C.); (Y.-H.L.); (Y.-C.T.); Tel.: +886-37-382216 (H.-W.C.); +886-37-382206 (Y.-H.L.); +886-4-22857257 (Y.-C.T.); Fax: +886-37-382189 (H.-W.C.); +886-37-382189 (Y.-H.L.); +886-4-22854734 (Y.-C.T.)
| | - Yu-Chen Tsai
- Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan
- Correspondence: (H.-W.C.); (Y.-H.L.); (Y.-C.T.); Tel.: +886-37-382216 (H.-W.C.); +886-37-382206 (Y.-H.L.); +886-4-22857257 (Y.-C.T.); Fax: +886-37-382189 (H.-W.C.); +886-37-382189 (Y.-H.L.); +886-4-22854734 (Y.-C.T.)
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Potato Chip-Like 0D Interconnected ZnCo2O4 Nanoparticles for High-Performance Supercapacitors. CRYSTALS 2021. [DOI: 10.3390/cryst11050469] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Zinc cobaltite (ZnCo2O4) is an emerging electrode material for supercapacitors due to its rich redox reactions involving multiple oxidation states and different ions. In the present work, potato chip-like 0D interconnected ZnCo2O4 nanoparticles (PIZCON) were prepared using a solvothermal approach. The prepared material was characterized using various analytical methods, including X-ray powder diffraction and scanning electron microscopy. The possible formation mechanism of PIZCON was proposed. The PIZCON electrode material was systematically characterized for supercapacitor application. The areal capacitance of PIZCON was 14.52 mF cm−2 at 10 µA cm−2 of current density, and retention of initial capacitance was 95% at 250 µA cm−2 following 3000 continuous charge/discharge cycles. The attained measures of electrochemical performance indicate that PIZCON is an excellent supercapacitor electrode material.
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