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Ishita I, Sahoo P, Sow PK, Singhal R. Unlocking the potential of KI as redox additive in supercapacitor through synergistic enhancement with H2SO4 as a co-electrolyte. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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2
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Liang H, Wang S, Lu S, Xu W, Zhou M. Fabrication of 3D HierarchicalSphericalHoneycomb-Like Nd 2O 3/Co 3O 4/Graphene/Nickel Foam Composite Electrode Material for High-Performance Supercapacitors. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1694. [PMID: 36837323 PMCID: PMC9963774 DOI: 10.3390/ma16041694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/02/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
A 3D hierarchical spherical honeycomb-like composite electrode materialof neodymium oxide (Nd2O3), cobalt tetraoxide (Co3O4), and reduced graphene oxide (rGO) on nickel foam (named as Nd2O3/Co3O4/rGO/NF) were successfully fabricated by combining the hydrothermal synthesis method and the annealing process. Nickel foam with a three-dimensional spatial structure was used as the growth substrate without the use of any adhesives. The Nd2O3/Co3O4/rGO/NF composite has outstanding electrochemical performance and can be used directly as an electrode material for supercapacitors (SCs). By taking advantage of the large specific surface area of the electrode material, it effectively slows down the volume expansion of the active material caused by repeated charging and discharging processes, improves the electrode performance in terms of electrical conductivity, and significantly shortens the electron and ion transport paths. At a 1 A/g current density, the specific capacitance reaches a maximum value of 3359.6 F/g. A specific capacitance of 440.4 F/g with a current density of 0.5A/g is still possible from the built symmetric SCs. The capacitance retention rate is still 95.7% after 30,000 cycles of testing at a high current density of 10 A/g, and the energy density is 88.1 Wh/kg at a power density of 300 W/kg. The outcomes of the experiment demonstrate the significant potential and opportunity for this composite material to be used as an electrode material for SCs.
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Affiliation(s)
- Huihui Liang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shasha Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shixiang Lu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenguo Xu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Min Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
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Hong JL, Liu JH, Xiong X, Qin SY, Xu XY, Meng X, Gu K, Tang J, Chen DZ. Temperature-dependent pseudocapacitive behaviors of polyaniline-based all-solid-state fiber supercapacitors. Electrochem commun 2023. [DOI: 10.1016/j.elecom.2023.107456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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Yang X, Feng W, Wang X, Mu J, Liu C, Wu X, Zhou P, Zhou J, Zhuo S. Structural adjustment on fluorinated graphene and their supercapacitive properties in KI-additive electrolyte. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Venna S, Sharma HB, Mandal D, Reddy HP, Chowdhury S, Chandra A, Dubey BK. Carbon material produced by hydrothermal carbonisation of food waste as an electrode material for supercapacitor application: A circular economy approach. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2022; 40:1514-1526. [PMID: 35257599 DOI: 10.1177/0734242x221081667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study aims to use landfill leachate (LL) as an aqueous medium during hydrothermal carbonisation (HTC) of food waste to produce hydrochar (FWH-LL-C), which could be used as an electrode material in energy storage devices. The structural properties and electrochemical performance of the hydrochar were compared to that obtained using distilled water as a reaction medium (FWH-DW-C). The results showed that there is a difference in Brunauer-Emmett-Teller (BET) surface area of FWH-LL-C (220 m2 gm-1) and FWH-DW-C (319 m2 gm-1). The electrochemical properties were comparable, with FWH-LL-C having 227 F g-1 specific capacitance at 1 A g-1 current density and FWH-DW-C having 235 F g-1 specific capacitance at 1 A g-1 current density. Furthermore, at a power density of 634 W kg-1, FWH-DW-C achieved the highest energy density of 14.4 Wh kg-1. The energy retention capacity of the electrode was 98% which indicate that the material has an excellent energy storage capacity. The findings suggested that LL could be used as an alternative source of aqueous media during the HTC of food waste to produce hydrochar which could be used as an effective electrode material in supercapacitors.
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Affiliation(s)
- Saikrishna Venna
- Department of Civil Engineering, National Institute of Technology Warangal, India
| | - Hari Bhakta Sharma
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, India
| | - Debabrata Mandal
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, India
| | - Hari Prasad Reddy
- Department of Civil Engineering, National Institute of Technology Warangal, India
| | - Shamik Chowdhury
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, India
| | - Amreesh Chandra
- Department of Physics, Indian Institute of Technology Kharagpur, India
| | - Brajesh K Dubey
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, India
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, India
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Yang N, Yu S, Zhang W, Cheng HM, Simon P, Jiang X. Electrochemical Capacitors with Confined Redox Electrolytes and Porous Electrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202380. [PMID: 35413141 DOI: 10.1002/adma.202202380] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Electrochemical capacitors (ECs), including electrical-double-layer capacitors and pseudocapacitors, feature high power densities but low energy densities. To improve the energy densities of ECs, redox electrolyte-enhanced ECs (R-ECs) or supercapbatteries are designed through employing confined soluble redox electrolytes and porous electrodes. In R-ECs the energy storage is based on diffusion-controlled faradaic processes of confined redox electrolytes at the surface of a porous electrode, which thus take the merits of high power densities of ECs and high energy densities of batteries. In the past few years, there has been great progress in the development of this energy storage technology, particularly in the design and synthesis of novel redox electrolytes and porous electrodes, as well as the configurations of new devices. Herein, a full-screen picture of the fundamentals and the state-of-art progress of R-ECs are given together with a discussion and outlines about the challenges and future perspectives of R-ECs. The strategies to improve the performance of R-ECs are highlighted from the aspects of their capacitances and capacitance retention, power densities, and energy densities. The insight into the philosophies behind these strategies will be favorable to promote the R-EC technology toward practical applications of supercapacitors in different fields.
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Affiliation(s)
- Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
| | - Siyu Yu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films, Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Advanced Technology Institute, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Patrice Simon
- CIRIMAT, UMR CNRS 5085, Université Toulouse III - Paul Sabatier, Toulouse, 31062, France
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
- Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Science), Qingdao, 266001, China
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Wang S, Lu S, Xu W, Li S, Meng J, Xin Y. Fabrication of a composite material of Gd 2O 3, Co 3O 4 and graphene on nickel foam for high-stability supercapacitors. NEW J CHEM 2022. [DOI: 10.1039/d2nj02188a] [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
The Gd2O3/Co3O4/rGO/NF electrode was prepared using a one-step hydrothermal method and annealing process, with high specific capacitance and excellent cycle stability.
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Affiliation(s)
- Shasha Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shixiang Lu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenguo Xu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shuguang Li
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jingjing Meng
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yulin Xin
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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Amorphous Porous Molybdenum Dioxide as an Efficient Supercapacitor Electrode Material. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202100083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Stable Copper Tin Sulfide Nanoflower Modified Carbon Quantum Dots for Improved Supercapacitors. J CHEM-NY 2019. [DOI: 10.1155/2019/6109758] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Copper tin sulfides (CTSs) have widely been investigated as electrode materials for supercapacitors owing to their high theoretical pseudocapacitances. However, the poor intrinsic conductivity and volume change during redox reactions hindered their electrochemical performances and broad applications. In this study, carbon quantum dots (CQDs) were employed to modify CTSs. The structures and morphologies of obtained materials were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD revealed CTSs were composed of Cu2SnS3 and Cu4SnS4, and TEM suggested the decoration of CQDs on the surface of CTSs. With the decoration of CQDs, CTSs@CQDs showed a remarkable specific capacitance of 856 F·g−1 at 2 mV·s−1 and a high rate capability of 474 F·g−1 at 50 mV·s−1, which were superior to those of CTSs (851 F·g−1 at 2 mV·s−1 and 192 F·g−1 at 50 mV·s−1, respectively). This was mainly ascribed to incorporation of carbon quantum dots, which improved the electrical conductivity and alleviated volume change of CTSs during charge/discharge processes.
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Sahoo S, Krishnamoorthy K, Pazhamalai P, Mariappan VK, Kim SJ. Copper molybdenum sulfide nanoparticles embedded on graphene sheets as advanced electrodes for wide temperature-tolerant supercapacitors. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00451c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper molybdenum sulfide-graphene (Cu2MoS4-rGO) hybrid is investigated as an electrode for temperature tolerant supercapacitor.
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Affiliation(s)
- Surjit Sahoo
- Nanomaterials and System Lab
- Department of Mechatronics Engineering
- Jeju National University
- Jeju 63243
- South Korea
| | - Karthikeyan Krishnamoorthy
- Nanomaterials and System Lab
- Department of Mechatronics Engineering
- Jeju National University
- Jeju 63243
- South Korea
| | - Parthiban Pazhamalai
- Nanomaterials and System Lab
- Department of Mechatronics Engineering
- Jeju National University
- Jeju 63243
- South Korea
| | - Vimal Kumar Mariappan
- Nanomaterials and System Lab
- Department of Mechatronics Engineering
- Jeju National University
- Jeju 63243
- South Korea
| | - Sang-Jae Kim
- Nanomaterials and System Lab
- Department of Mechatronics Engineering
- Jeju National University
- Jeju 63243
- South Korea
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Sankar KV, Seo Y, Lee SC, Chan Jun S. Redox Additive-Improved Electrochemically and Structurally Robust Binder-Free Nickel Pyrophosphate Nanorods as Superior Cathode for Hybrid Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8045-8056. [PMID: 29461031 DOI: 10.1021/acsami.7b19357] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
For several decades, one of the great challenges for constructing a high-energy supercapacitor has been designing electrode materials with high performance. Herein, we report for the first time to our knowledge a novel hybrid supercapacitor composed of battery-type nickel pyrophosphate one-dimensional (1D) nanorods and capacitive-type N-doped reduced graphene oxide as the cathode and anode, respectively, in an aqueous redox-added electrolyte. More importantly, ex situ microscopic images of the nickel pyrophosphate 1D nanorods revealed that the presence of the battery-type redox additive enhanced the charge storage capacity and cycling life as a result of the microstructure stability. The nickel pyrophosphate 1D nanorods exhibited their maximum specific capacitance (8120 mF cm-2 at 5 mV s-1) and energy density (0.22 mWh cm-2 at a power density of 1.375 mW cm-2) in 1 M KOH + 75 mg K3[Fe(CN)6] electrolyte. On the other side, the N-doped reduced graphene oxide delivered an excellent electrochemical performance, demonstrating that it was an appropriate anode. A hybrid supercapacitor showed a high specific capacitance (224 F g-1 at a current density of 1 A g-1) and high energy density (70 Wh kg-1 at a power density of 750 W kg-1), as well as a long cycle life (a Coulombic efficiency of 96% over 5000 cycles), which was a higher performance than most of those in recent reports. Our results suggested that the materials and redox additive in this novel design hold great promise for potential applications in a next-generation hybrid supercapacitor.
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Affiliation(s)
- Kalimuthu Vijaya Sankar
- Nano-Electro Mechanical Device Laboratory, School of Mechanical Engineering , Yonsei University , Seoul 120-749 , South Korea
| | - Youngho Seo
- Nano-Electro Mechanical Device Laboratory, School of Mechanical Engineering , Yonsei University , Seoul 120-749 , South Korea
| | - Su Chan Lee
- Nano-Electro Mechanical Device Laboratory, School of Mechanical Engineering , Yonsei University , Seoul 120-749 , South Korea
| | - Seong Chan Jun
- Nano-Electro Mechanical Device Laboratory, School of Mechanical Engineering , Yonsei University , Seoul 120-749 , South Korea
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Sharma V, Singh I, Chandra A. Hollow nanostructures of metal oxides as next generation electrode materials for supercapacitors. Sci Rep 2018; 8:1307. [PMID: 29358621 PMCID: PMC5778045 DOI: 10.1038/s41598-018-19815-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/08/2018] [Indexed: 11/18/2022] Open
Abstract
Hollow nanostructures of copper oxides help to stabilize appreciably higher electrochemical characteristics than their solid counter parts of various morphologies. The specific capacitance values, calculated using cyclic voltammetry (CV) and charge-discharge (CD) studies, are found to be much higher than the values reported in literature for copper oxide particles showing intriguing morphologies or even composites with trendy systems like CNTs, rGO, graphene, etc. The proposed cost-effective synthesis route makes these materials industrially viable for application in alternative energy storage devices. The improved electrochemical response can be attributed to effective access to the higher number of redox sites that become available on the surface, as well as in the cavity of the hollow particles. The ion transport channels also facilitate efficient de-intercalation, which results in the enhancement of cyclability and Coulombic efficiency. The charge storage mechanism in copper oxide structures is also proposed in the paper.
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Affiliation(s)
- Vikas Sharma
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Inderjeet Singh
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Amreesh Chandra
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India. .,Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India.
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