51
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Guo FM, Xu RQ, Cui X, Zang XB, Zhang L, Chen Q, Wang KL, Wei JQ. Highly flexible, tailorable and all-solid-state supercapacitors from carbon nanotube–MnOx composite films. RSC Adv 2015. [DOI: 10.1039/c5ra16771j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly flexible and tailorable supercapacitors are fabricated from CNT–MnOx films basing on carbon nanotube (CNT) macrofilms. The supercapacitors exhibit outstanding capacitive properties and reliability under bending, kneading and cutting.
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Affiliation(s)
- F. M. Guo
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - R. Q. Xu
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - X. Cui
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - X. B. Zang
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - L. Zhang
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - Q. Chen
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - K. L. Wang
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
| | - J. Q. Wei
- Key Lab for Advanced Materials Processing Technology of Education Ministry
- State Key Lab of New Ceramic and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
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52
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The Specific Capacitive Performances of the Manganese Oxyhydroxide/Carbon microcoil Electrodes for Supercapacitors. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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53
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Guo D, Ren W, Chen Z, Mao M, Li Q, Wang T. NiMoO4 nanowire @ MnO2 nanoflake core/shell hybrid structure aligned on carbon cloth for high-performance supercapacitors. RSC Adv 2015. [DOI: 10.1039/c4ra14442b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel hybrid structure of core/shell NiMoO4@MnO2 was directly synthesized on carbon cloth by a facile two-step hydrothermal route for supercapacitors.
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Affiliation(s)
- Di Guo
- College of Chemistry and Chemical Engineering
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics
- Hunan University
- Changsha
- P. R. China
| | - Weiji Ren
- College of Chemistry and Chemical Engineering
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics
- Hunan University
- Changsha
- P. R. China
| | - Zhi Chen
- College of Chemistry and Chemical Engineering
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics
- Hunan University
- Changsha
- P. R. China
| | - Minglei Mao
- College of Chemistry and Chemical Engineering
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics
- Hunan University
- Changsha
- P. R. China
| | - Qiuhong Li
- Pen-Tung Sah Institute of Micro-Nano Science and Technology of Xiamen University
- Xiamen
- P. R. China
| | - Taihong Wang
- College of Chemistry and Chemical Engineering
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics
- Hunan University
- Changsha
- P. R. China
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54
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Zhang Y, Chen J, Fan H, Chou KC, Hou X. Characterization of modified SiC@SiO2 nanocables/MnO2 and their potential application as hybrid electrodes for supercapacitors. Dalton Trans 2015; 44:19974-82. [DOI: 10.1039/c5dt02971f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this research, we demonstrate a simple route for preparing SiC@SiO2 core–shell nanocables and furthermore obtain SiC@SiO2 nanocables/MnO2 as hybrid electrodes for supercapacitors using various modified methods.
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Affiliation(s)
- Yujie Zhang
- School of Chemistry and Biological Engineering
- University of Science & Technology Beijing
- Beijing 100083
- China
| | - Junhong Chen
- School of Material Science and Engineering
- University of Science & Technology Beijing
- Beijing 100083
- China
| | - Huili Fan
- School of Chemistry and Biological Engineering
- University of Science & Technology Beijing
- Beijing 100083
- China
| | - Kuo-Chih Chou
- State Key Laboratory of Advanced Metallurgy
- University of Science &Technology Beijing
- Beijing 100083
- China
| | - Xinmei Hou
- State Key Laboratory of Advanced Metallurgy
- University of Science &Technology Beijing
- Beijing 100083
- China
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55
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Shao Y, El-Kady MF, Wang LJ, Zhang Q, Li Y, Wang H, Mousavi MF, Kaner RB. Graphene-based materials for flexible supercapacitors. Chem Soc Rev 2015; 44:3639-65. [DOI: 10.1039/c4cs00316k] [Citation(s) in RCA: 870] [Impact Index Per Article: 96.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The recent advances in developing graphene-based materials for flexible supercapacitors are summarized in this review.
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Affiliation(s)
- Yuanlong Shao
- Department of Chemistry and Biochemistry and California NanoSystems Institute
- University of California
- Los Angeles (UCLA)
- Los Angeles
- USA
| | - Maher F. El-Kady
- Department of Chemistry and Biochemistry and California NanoSystems Institute
- University of California
- Los Angeles (UCLA)
- Los Angeles
- USA
| | - Lisa J. Wang
- Department of Chemistry and Biochemistry and California NanoSystems Institute
- University of California
- Los Angeles (UCLA)
- Los Angeles
- USA
| | - Qinghong Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Material Science and Engineering
- Donghua University
- Shanghai
- China
| | - Yaogang Li
- Engineering Research Center of Advanced Glasses Manufacturing Technology
- Ministry of Education
- Donghua University
- Shanghai
- China
| | - Hongzhi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Material Science and Engineering
- Donghua University
- Shanghai
- China
| | - Mir F. Mousavi
- Department of Chemistry and Biochemistry and California NanoSystems Institute
- University of California
- Los Angeles (UCLA)
- Los Angeles
- USA
| | - Richard B. Kaner
- Department of Chemistry and Biochemistry and California NanoSystems Institute
- University of California
- Los Angeles (UCLA)
- Los Angeles
- USA
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56
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Chodankar NR, Gund GS, Dubal DP, Lokhande CD. Alcohol mediated growth of α-MnO2thin films from KMnO4precursor for high performance supercapacitors. RSC Adv 2014. [DOI: 10.1039/c4ra09268f] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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57
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Di J, Wang X, Xing Y, Zhang Y, Zhang X, Lu W, Li Q, Zhu YT. Dry-processable carbon nanotubes for functional devices and composites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4606-25. [PMID: 25123967 DOI: 10.1002/smll.201401465] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 07/01/2014] [Indexed: 05/23/2023]
Abstract
Assembly of carbon nanotubes (CNTs) in effective and productive ways is of vital importance to their application. Recent progress in synthesis of CNTs has inspired new strategies for utilizing the unique physiochemical properties of CNTs in macroscale materials and devices. Assembling CNTs by dry processes (e.g., directly collecting CNTs in the form of freestanding films followed by pressing, stretching, and multilayer stacking instead of dispersing them in solution) not only considerably simplifies the processes but also avoids structural damage to the CNTs. Various dry-processable CNTs are reviewed, focusing on their synthesis, properties, and applications. The synthesis techniques are organized in terms of aggregative morphologies and microstructure control of CNTs. Important applications such as functional thin-film devices, strong CNT films, and composites are included. The opportunities and challenges in the synthesis techniques and fabrication of advanced composites and devices are discussed.
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Affiliation(s)
- Jiangtao Di
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
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58
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Di Crescenzo A, Ettorre V, Fontana A. Non-covalent and reversible functionalization of carbon nanotubes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:1675-90. [PMID: 25383279 PMCID: PMC4222398 DOI: 10.3762/bjnano.5.178] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Accepted: 08/29/2014] [Indexed: 05/18/2023]
Abstract
Carbon nanotubes (CNTs) have been proposed and actively explored as multipurpose innovative nanoscaffolds for applications in fields such as material science, drug delivery and diagnostic applications. Their versatile physicochemical features are nonetheless limited by their scarce solubilization in both aqueous and organic solvents. In order to overcome this drawback CNTs can be easily non-covalently functionalized with different dispersants. In the present review we focus on the peculiar hydrophobic character of pristine CNTs that prevent them to easily disperse in organic solvents. We report some interesting examples of CNTs dispersants with the aim to highlight the essential features a molecule should possess in order to act as a good carbon nanotube dispersant both in water and in organic solvents. The review pinpoints also a few examples of dispersant design. The last section is devoted to the exploitation of the major quality of non-covalent functionalization that is its reversibility and the possibility to obtain stimuli-responsive precipitation or dispersion of CNTs.
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Affiliation(s)
- Antonello Di Crescenzo
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
| | - Valeria Ettorre
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
| | - Antonella Fontana
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
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59
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Qiu K, Yan H, Zhang D, Lu Y, Cheng J, Zhao W, Wang C, Zhang Y, Liu X, Cheng C, Luo Y. Hierarchical 3D Mesoporous Conch-like Co3O4 Nanostructure Arrays for High-Performance Supercapacitors. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.074] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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60
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Weng W, Sun Q, Zhang Y, Lin H, Ren J, Lu X, Wang M, Peng H. Winding aligned carbon nanotube composite yarns into coaxial fiber full batteries with high performances. NANO LETTERS 2014; 14:3432-3438. [PMID: 24831023 DOI: 10.1021/nl5009647] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Inspired by the fantastic and fast-growing wearable electronics such as Google Glass and Apple iWatch, matchable lightweight and weaveable energy storage systems are urgently demanded while remaining as a bottleneck in the whole technology. Fiber-shaped energy storage devices that can be woven into electronic textiles may represent a general and effective strategy to overcome the above difficulty. Here a coaxial fiber lithium-ion battery has been achieved by sequentially winding aligned carbon nanotube composite yarn cathode and anode onto a cotton fiber. Novel yarn structures are designed to enable a high performance with a linear energy density of 0.75 mWh cm(-1). A wearable energy storage textile is also produced with an areal energy density of 4.5 mWh cm(-2).
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Affiliation(s)
- Wei Weng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University , Shanghai 200438, China
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61
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Anothumakkool B, Torris A T A, Bhange SN, Badiger MV, Kurungot S. Electrodeposited polyethylenedioxythiophene with infiltrated gel electrolyte interface: a close contest of an all-solid-state supercapacitor with its liquid-state counterpart. NANOSCALE 2014; 6:5944-52. [PMID: 24764081 DOI: 10.1039/c4nr00659c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the design of an all-solid-state supercapacitor, which has charge storage characteristics closely matching that of its liquid-state counterpart even under extreme temperature and humidity conditions. The prototype is made by electro-depositing polyethylenedioxythiophene (PEDOT) onto the individual carbon fibers of a porous carbon substrate followed by intercalating the matrix with polyvinyl alcohol-sulphuric acid (PVA-H2SO4) gel electrolyte. The electrodeposited layer of PEDOT maintained a flower-like growth pattern along the threads of each carbon fiber. This morphology and the alignment of PEDOT led to an enhanced surface area and electrical conductivity, and the pores in the system enabled effective intercalation of the polymer-gel electrolyte. Thus, the established electrode-electrolyte interface nearly mimics that of its counterpart based on the liquid electrolyte. Consequently, the solid device attained very low internal resistance (1.1 Ω cm(-2)) and a high specific capacitance (181 F g(-1)) for PEDOT at a discharge current density of 0.5 A g(-1). Even with a high areal capacitance of 836 mF cm(-2) and volumetric capacitance of 28 F cm(-3), the solid device retained a mass-specific capacitance of 111 F g(-1) for PEDOT. This is in close agreement with the value displayed by the corresponding liquid-state system (112 F g(-1)), which was fabricated by replacing the gel electrolyte with 0.5 M H2SO4. The device also showed excellent charge-discharge stability for 12 000 cycles at 5 A g(-1). The performance of the device was consistent even under wide-ranging humidity (30-80%) and temperature (-10 to 80 °C) conditions. Finally, a device fabricated by increasing the electrode area four times was used to light an LED, which validated the scalability of the process.
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Affiliation(s)
- Bihag Anothumakkool
- Physical and Materials Chemistry Division, National Chemical Laboratory, Pune-411008, Maharashtra, India.
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62
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Ellis BL, Knauth P, Djenizian T. Three-dimensional self-supported metal oxides for advanced energy storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:3368-97. [PMID: 24700719 DOI: 10.1002/adma.201306126] [Citation(s) in RCA: 206] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 01/20/2014] [Indexed: 05/24/2023]
Abstract
The miniaturization of power sources aimed at integration into micro- and nano-electronic devices is a big challenge. To ensure the future development of fully autonomous on-board systems, electrodes based on self-supported 3D nanostructured metal oxides have become increasingly important, and their impact is particularly significant when considering the miniaturization of energy storage systems. This review describes recent advances in the development of self-supported 3D nanostructured metal oxides as electrodes for innovative power sources, particularly Li-ion batteries and electrochemical supercapacitors. Current strategies for the design and morphology control of self-supported electrodes fabricated using template, lithography, anodization and self-organized solution techniques are outlined along with different efforts to improve the storage capacity, rate capability, and cyclability.
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Affiliation(s)
- Brian L Ellis
- Aix-Marseille University, CNRS, LP3 Laboratory, UMR 7341, 13288, Marseille, France
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63
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Wang JG, Yang Y, Huang ZH, Kang F. MnO2/polypyrrole nanotubular composites: reactive template synthesis, characterization and application as superior electrode materials for high-performance supercapacitors. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.082] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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64
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65
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Lou F, Zhou H, Tran TD, Melandsø Buan ME, Vullum-Bruer F, Rønning M, Walmsley JC, Chen D. Coaxial carbon/metal oxide/aligned carbon nanotube arrays as high-performance anodes for lithium ion batteries. CHEMSUSCHEM 2014; 7:1335-1346. [PMID: 24578068 DOI: 10.1002/cssc.201300461] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 10/13/2013] [Indexed: 06/03/2023]
Abstract
Coaxial carbon/metal oxide/aligned carbon nanotube (ACNT) arrays over stainless-steel foil are reported as high-performance binder-free anodes for lithium ion batteries. The coaxial arrays were prepared by growth of ACNTs over stainless-steel foil followed by coating with metal oxide and carbon. The carbon/manganese oxide/ACNT arrays can deliver an initial capacity of 738 mAh g(-1) with 99.9 % capacity retention up to 100 cycles and a capacity of 374 mAh g(-1) at a high current density of 6000 mA g(-1). The external carbon layer was recognized as a key component for high performance, and the mechanism of performance enhancement was investigated by electrochemical impedance spectroscopy, electron microscopy, and X-ray diffraction analysis. The layer increases rate capability by enhancing electrical conductivity and maintaining a low mass-transfer resistance and also improves cyclic stability by avoiding aggregation of metal-oxide particles and stabilizing the solid electrolyte interface. The resultant principle of rational electrode design was applied to an iron oxide-based system, and similar improvements were found. These coaxial nanotube arrays present a promising strategy for the rational design of high-performance binder-free anodes for lithium ion batteries.
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Affiliation(s)
- Fengliu Lou
- Department of Chemical Engineering, Norwegian University of Science and Technology, Sem Saelands vei 4, 7491 Trondheim (Norway), Fax: (+47)73595047 http://www.nt.ntnu.no/users/chen/index.htm
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66
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Li W, Xu K, Li B, Sun J, Jiang F, Yu Z, Zou R, Chen Z, Hu J. MnO2Nanoflower Arrays with High Rate Capability for Flexible Supercapacitors. ChemElectroChem 2014. [DOI: 10.1002/celc.201400006] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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67
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Choi C, Lee JA, Choi AY, Kim YT, Lepró X, Lima MD, Baughman RH, Kim SJ. Flexible supercapacitor made of carbon nanotube yarn with internal pores. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2059-65. [PMID: 24353070 DOI: 10.1002/adma.201304736] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Indexed: 05/13/2023]
Abstract
Electrochemical deposition of MnO2 onto carbon nanotube (CNT) yarn gives a high-performance, flexible yarn supercapacitor. The hybrid yarn's blended structure, resulting from trapping of MnO2 in its internal pores, effectively enlarges electrochemical area and reduces charge diffusion length. Accordingly, the yarn supercapacitor exhibits high values of capacitance, energy density, and average power density. Applications in wearable electronics can be envisaged.
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Affiliation(s)
- Changsoon Choi
- Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
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68
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Zhao Y, Jiang P. MnO2 nanosheets grown on the ZnO-nanorod-modified carbon fibers for supercapacitor electrode materials. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.12.067] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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69
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Li Q, Lu XF, Xu H, Tong YX, Li GR. Carbon/MnO(2) double-walled nanotube arrays with fast ion and electron transmission for high-performance supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2014; 6:2726-33. [PMID: 24533678 DOI: 10.1021/am405271q] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The novel carbon (C)/MnO2 double-walled nanotube arrays (DNTAs) are designed and fabricated via template-assisted electrodeposition. The unique DNTA architectures of C/MnO2 composites with high weight fraction of MnO2 allow high electrode utilization ratio and facilitate electron and ion transmission. In the half-cell test, the hybrid C/MnO2 DNTAs as electrodes show a large specific capacitance (Csp) of 793 F/g at the scan rate of 5 mV/s, high energy/power densities, and much enhanced long-term cycle stability. After 5,000 cycles, the Csp retention of C/MnO2 DNTAs keeps ∼97%, which is much larger than 69% of the MnO2 nanotube arrays (NTAs). The symmetrical supercapacitors (SSCs) composed of C/MnO2 DNTAs also show the predominant performance, such as large Csp of 161 F/g and high energy density of ∼35 Wh/kg, indicating that the C/MnO2 DNTAs is a potential electrode for supercapacitors. The high order pore passages, double-walled structures, hollow structures, and high conductivity are responsible for the superior performance of C/MnO2 DNTAs. Such hybrid C/MnO2 DNTAs may bring new opportunities for the development of supercapacitors with superior performance.
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Affiliation(s)
- Qi Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University , Guangzhou, 510275 Guangdong, China
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70
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Trang NTH, Ngoc HV, Lingappan N, Kang DJ. A comparative study of supercapacitive performances of nickel cobalt layered double hydroxides coated on ZnO nanostructured arrays on textile fibre as electrodes for wearable energy storage devices. NANOSCALE 2014; 6:2434-2439. [PMID: 24441593 DOI: 10.1039/c3nr04764d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrated an efficient method for the fabrication of novel, flexible electrodes based on ZnO nanoflakes and nickel-cobalt layered double hydroxides (denoted as ZnONF/NiCoLDH) as a core-shell nanostructure on textile substrates for wearable energy storage devices. NiCoLDH coated ZnO nanowire (denoted as ZnONW/NiCoLDH) flexible electrodes are also prepared for comparison. As an electrode for supercapacitors, ZnONF/NiCoLDH exhibits a high specific capacitance of 1624 F g(-1), which is nearly 1.6 times greater than ZnONW/NiCoLDH counterparts. It also shows a maximum energy density of 48.32 W h kg(-1) at a power density of 27.53 kW kg(-1), and an excellent cycling stability with capacitance retention of 94% and a Coulombic efficiency of 93% over 2000 cycles. We believe that the superior performance of the ZnONF/NiCoLDH hybrids is due primarily to the large surface area of the nanoflake structure and the open spaces between nanoflakes, both of which provide a large space for the deposition of NiCoLDH, resulting in reduced internal resistance and improved capacitance performance. Our results are significant for the development of electrode materials for high-performance wearable energy storage devices.
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Affiliation(s)
- Nguyen Thi Hong Trang
- Department of Physics, SKKU Advanced Institute of Nanotechnology, Institute of Basic Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
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71
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Shi S, Xu C, Yang C, Chen Y, Liu J, Kang F. Flexible asymmetric supercapacitors based on ultrathin two-dimensional nanosheets with outstanding electrochemical performance and aesthetic property. Sci Rep 2014; 3:2598. [PMID: 24008931 PMCID: PMC3764445 DOI: 10.1038/srep02598] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 08/15/2013] [Indexed: 12/22/2022] Open
Abstract
Flexible asymmetric supercapacitors with excellent electrochemical performance and aesthetic property are realized by using ultrathin two-dimensional (2D) MnO2 and graphene nanosheets as cathode and anode materials, respectively. 2D MnO2 nanosheets (MSs) with a thickness of ca. 2 nm are synthesized with a soft template method for the first time, which achieve a high specific capacitance of 774 F g−1 even after 10000 cycles. Asymmetric supercapacitors based on ultrathin MSs and graphene exhibit a very high energy density up to 97.2 Wh kg−1 with no more than 3% capacitance loss after 10000 cycles in aqueous electrolyte. Most interestingly, we show that the energy storage device can have an aesthetic property. For instance, a “Chinese panda” supercapacitor is capable of lighting up a red light emitting diode. This work has another, quite different aspect that a supercapacitor is no longer a cold industry product, but could have the meaning of art.
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Affiliation(s)
- Shan Shi
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
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72
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Chidembo AT, Aboutalebi SH, Konstantinov K, Jafta CJ, Liu HK, Ozoemena KI. In situ engineering of urchin-like reduced graphene oxide–Mn2O3–Mn3O4nanostructures for supercapacitors. RSC Adv 2014. [DOI: 10.1039/c3ra44973d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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73
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Zhang Z, Kan G, Ren W, Tan Q, Zhong Z, Su F. Ni0.33Mn0.33Co0.33Fe2O4 nanoparticles anchored on oxidized carbon nanotubes as advanced anode materials in Li-ion batteries. RSC Adv 2014. [DOI: 10.1039/c4ra04483e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Ni0.33Mn0.33Co0.33Fe2O4 nanoparticles anchored on oxidized carbon nanotubes as anode materials exhibit a significantly improved electrochemical performance in Li-ion batteries.
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Affiliation(s)
- Zailei Zhang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China 100190
| | - Guangwei Kan
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China 100190
| | - Wenfeng Ren
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China 100190
| | - Qiangqiang Tan
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China 100190
| | - Ziyi Zhong
- Institute of Chemical Engineering and Sciences
- A*star
- Jurong Island, Singapore 627833
| | - Fabing Su
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China 100190
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74
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Zhang Y, Ma M, Yang J, Huang W, Dong X. Graphene-based three-dimensional hierarchical sandwich-type architecture for high performance supercapacitors. RSC Adv 2014. [DOI: 10.1039/c3ra46195e] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile two-step method is developed for large-scale preparation of graphene-based three-dimensional hierarchical sandwich-type architecture (graphene/carbon nanotubes (CNTs)/Mn2O3) for high performance supercapacitor.
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Affiliation(s)
- Yufei Zhang
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM)
- Nanjing Tech University
- Nanjing 211816, China
- School of Chemistry and Chemical Engineering
- Inner Mongolia University
| | - Mingze Ma
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM)
- Nanjing Tech University
- Nanjing 211816, China
| | - Jun Yang
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM)
- Nanjing Tech University
- Nanjing 211816, China
| | - Wei Huang
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM)
- Nanjing Tech University
- Nanjing 211816, China
- Key Laboratory for Organic Electronics & Information Displays (KLOEID)
- Nanjing Tech University
| | - Xiaochen Dong
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM)
- Nanjing Tech University
- Nanjing 211816, China
- Key Laboratory for Organic Electronics & Information Displays (KLOEID)
- Nanjing Tech University
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75
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Guo CX, Chitre AA, Lu X. DNA-assisted assembly of carbon nanotubes and MnO2 nanospheres as electrodes for high-performance asymmetric supercapacitors. Phys Chem Chem Phys 2014; 16:4672-8. [DOI: 10.1039/c3cp54911a] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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76
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Anothumakkool B, Kurungot S. Electrochemically grown nanoporous MnO2 nanowalls on a porous carbon substrate with enhanced capacitance through faster ionic and electrical mobility. Chem Commun (Camb) 2014; 50:7188-90. [DOI: 10.1039/c4cc00927d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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77
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Zhang J, Zang J, Wang Y, Xin G, Zhang Y. One-pot synthesis of a Mn(MnO)/Mn5C2/carbon nanotube nanocomposite for supercapacitors. RSC Adv 2014. [DOI: 10.1039/c4ra10940f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report a one-pot synthesis of Mn(MnO)/Mn5C2/carbon nanotube (CNTs) nanocomposite for supercapacitors.
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Affiliation(s)
- Jinhui Zhang
- State Key Laboratory of Metastable Materials Science and Technology
- College of Materials Science and Engineering
- Yanshan University
- Qinhuangdao 066004, P.R. China
- Tangshan College
| | - Jianbing Zang
- State Key Laboratory of Metastable Materials Science and Technology
- College of Materials Science and Engineering
- Yanshan University
- Qinhuangdao 066004, P.R. China
| | - Yanhui Wang
- State Key Laboratory of Metastable Materials Science and Technology
- College of Materials Science and Engineering
- Yanshan University
- Qinhuangdao 066004, P.R. China
| | - Guoxiang Xin
- State Key Laboratory of Metastable Materials Science and Technology
- College of Materials Science and Engineering
- Yanshan University
- Qinhuangdao 066004, P.R. China
| | - Yan Zhang
- State Key Laboratory of Metastable Materials Science and Technology
- College of Materials Science and Engineering
- Yanshan University
- Qinhuangdao 066004, P.R. China
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78
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Subramani K, Jeyakumar D, Sathish M. Manganese hexacyanoferrate derived Mn3O4 nanocubes–reduced graphene oxide nanocomposites and their charge storage characteristics in supercapacitors. Phys Chem Chem Phys 2014; 16:4952-61. [DOI: 10.1039/c3cp54788d] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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79
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Fabrication of a microneedle/CNT hierarchical micro/nano surface electrochemical sensor and its in-vitro glucose sensing characterization. SENSORS 2013; 13:16672-81. [PMID: 24304643 PMCID: PMC3892836 DOI: 10.3390/s131216672] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 11/14/2013] [Accepted: 11/22/2013] [Indexed: 01/05/2023]
Abstract
We report fabrication of a microneedle-based three-electrode integrated electrochemical sensor and in-vitro characterization of this sensor for glucose sensing applications. A piece of silicon was sequentially dry and wet etched to form a 15 × 15 array of tall (approximately 380 μm) sharp silicon microneedles. Iron catalyst was deposited through a SU-8 shadow mask to form the working electrode and counter electrode. A multi-walled carbon nanotube forest was grown directly on the silicon microneedle array and platinum nano-particles were electrodeposited. Silver was deposited on the Si microneedle array through another shadow mask and chlorinated to form a Ag/AgCl reference electrode. The 3-electrode electrochemical sensor was tested for various glucose concentrations in the range of 3∼20 mM in 0.01 M phosphate buffered saline (PBS) solution. The sensor's amperometric response to the glucose concentration is linear and its sensitivity was found to be 17.73 ± 3 μA/mM-cm2. This microneedle-based sensor has a potential to be used for painless diabetes testing applications.
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80
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Zhu J, Cao L, Wu Y, Gong Y, Liu Z, Hoster HE, Zhang Y, Zhang S, Yang S, Yan Q, Ajayan PM, Vajtai R. Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors. NANO LETTERS 2013; 13:5408-5413. [PMID: 24148090 DOI: 10.1021/nl402969r] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Various two-dimensional (2D) materials have recently attracted great attention owing to their unique properties and wide application potential in electronics, catalysis, energy storage, and conversion. However, large-scale production of ultrathin sheets and functional nanosheets remains a scientific and engineering challenge. Here we demonstrate an efficient approach for large-scale production of V2O5 nanosheets having a thickness of 4 nm and utilization as building blocks for constructing 3D architectures via a freeze-drying process. The resulting highly flexible V2O5 structures possess a surface area of 133 m(2) g(-1), ultrathin walls, and multilevel pores. Such unique features are favorable for providing easy access of the electrolyte to the structure when they are used as a supercapacitor electrode, and they also provide a large electroactive surface that advantageous in energy storage applications. As a consequence, a high specific capacitance of 451 F g(-1) is achieved in a neutral aqueous Na2SO4 electrolyte as the 3D architectures are utilized for energy storage. Remarkably, the capacitance retention after 4000 cycles is more than 90%, and the energy density is up to 107 W·h·kg(-1) at a high power density of 9.4 kW kg(-1).
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Affiliation(s)
- Jixin Zhu
- Department of Mechanical Engineering & Materials Science, Rice University , Houston, Texas 77005, United States
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81
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He Y, Chen W, Gao C, Zhou J, Li X, Xie E. An overview of carbon materials for flexible electrochemical capacitors. NANOSCALE 2013; 5:8799-8820. [PMID: 23934430 DOI: 10.1039/c3nr02157b] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Under the background of the quick development of lightweight, flexible, and wearable electronic devices in our society, a flexible and highly efficient energy management strategy is needed for their counterpart energy-storage systems. Among them, flexible electrochemical capacitors (ECs) have been considered as one of the most promising candidates because of their significant advantages in power and energy densities, and unique properties of being flexible, lightweight, low-cost, and environmentally friendly compared with current energy storage devices. In a common EC, carbon materials play an irreplaceable and principal role in its energy-storage performance. Up till now, most progress towards flexible ECs technologies has mostly benefited from the continuous development of carbon materials. As a result, in view of the dual remarkable highlights of ECs and carbon materials, a summary of recent research progress on carbon-based flexible EC electrode materials is presented in this review, including carbon fiber (CF, consisting of carbon microfiber-CMF and carbon nanofiber-CNF) networks, carbon nanotube (CNT) and graphene coatings, CNT and/or graphene papers (or films), and freestanding three-dimensional (3D) flexible carbon-based macroscopic architectures. Furthermore, some promising carbon materials for great potential applications in flexible ECs are introduced. Finally, the trends and challenges in the development of carbon-based electrode materials for flexible ECs and their smart applications are analyzed.
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Affiliation(s)
- Yongmin He
- Department of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China.
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82
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Liu Y, Huang H, Peng X. Highly enhanced capacitance of CuO nanosheets by formation of CuO/SWCNT networks through electrostatic interaction. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.04.110] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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83
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Jung D, Yoon Y, Lee GS. Hydrogen sensing characteristics of carbon-nanotube sheet decorated with manganese oxides. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.05.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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84
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Yu Z, Duong B, Abbitt D, Thomas J. Highly ordered MnO₂ nanopillars for enhanced supercapacitor performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3302-6. [PMID: 23636961 DOI: 10.1002/adma.201300572] [Citation(s) in RCA: 160] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 02/28/2013] [Indexed: 05/17/2023]
Abstract
This report demonstrates a simple, but efficient method to print highly ordered nanopillars without the use of sacrificial templates or any expensive equipment. The printed polymer structure is used as a scaffold to deposit electrode material (manganese dioxide) for making supercapacitors. The simplicity of the fabrication method together with superior power density and energy density make this supercapacitor electrode very attractive for the next-generation energy storage systems.
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Affiliation(s)
- Zenan Yu
- NanoScience Technology Center, University of Central Florida, FL 32826, USA
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85
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Sun Z, Firdoz S, Yap EYX, Li L, Lu X. Hierarchically structured MnO2 nanowires supported on hollow Ni dendrites for high-performance supercapacitors. NANOSCALE 2013; 5:4379-87. [PMID: 23571645 DOI: 10.1039/c3nr00209h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report a hierarchical Ni@MnO2 structure consisting of MnO2 nanowires supported on hollow Ni dendrites for high-performance supercapacitors. The Ni@MnO2 structure, which was prepared via a facile electrodeposition method, is highly porous and appears like a forest of pine trees grown vertically on a substrate. At a MnO2 mass loading of 0.35 mg cm(-2), the Ni@MnO2 electrode demonstrated a specific capacitance of 1125 F g(-1) that is close to the theoretical value. In addition, a remarkable high-rate performance (766 F g(-1) at a discharge current density of 100 A g(-1)) was achieved. Electrochemical tests in a two-electrode configuration for the Ni@MnO2 structure with a high MnO2 loading of 3.6 mg cm(-2) showed a low equivalent series resistance (ESR) of 1 Ω and a high specific power of 72 kW kg(-1). This superior performance can be attributed to the highly porous and hierarchical structure of Ni@MnO2 that favors rapid diffusion of an electrolyte, highly conductive pathway for electron transport, and efficient material utilization.
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Affiliation(s)
- Zhipeng Sun
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Singapore 117576
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86
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Su M, Zhang Y, Song X, Ge S, Yan M, Yu J, Huang J. Three-dimensional nanoflower-like MnO2 functionalized graphene as catalytically promoted nanolabels for ultrasensitive electrochemiluminescence immunoassay. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.110] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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87
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Tan HT, Rui X, Shi W, Xu C, Yu H, Hoster HE, Yan Q. Controlled Synthesis of Manganese Oxyhydroxide Nanotubes: Implications for High-Efficiency Supercapacitors. Chempluschem 2013. [DOI: 10.1002/cplu.201300095] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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88
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Mai L, Li H, Zhao Y, Xu L, Xu X, Luo Y, Zhang Z, Ke W, Niu C, Zhang Q. Fast Ionic Diffusion-Enabled Nanoflake Electrode by Spontaneous Electrochemical Pre-Intercalation for High-Performance Supercapacitor. Sci Rep 2013. [PMCID: PMC3634106 DOI: 10.1038/srep01718] [Citation(s) in RCA: 162] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Layered intercalation compounds NaxMnO2 (x = 0.7 and 0.91) nanoflakes have been prepared directly through wet electrochemical process with Na+ ions intercalated into MnO2 interlayers spontaneously. The as-prepared NaxMnO2 nanoflake based supercapacitors exhibit faster ionic diffusion with enhanced redox peaks, tenfold-higher energy densities up to 110 Wh·kg−1 and higher capacitances over 1000 F·g−1 in aqueous sodium system compared with traditional MnO2 supercapacitors. Due to the free-standing electrode structure and suitable crystal structure, NaxMnO2 nanoflake electrodes also maintain outstanding electrochemical stability with capacitance retention up to 99.9% after 1000 cycles. Besides, pre-intercalation effect is further studied to explain this enhanced electrochemical performance. This study indicates that the suitable pre-intercalation is effective to improve the diffusion of electrolyte cations and other electrochemical performance for layered oxides, and suggests that the as-obtained nanoflakes are promising materials to achieve the hybridization of both high energy and power density for advanced supercapacitors.
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89
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Cheng Y, Zhang H, Lu S, Varanasi CV, Liu J. Flexible asymmetric supercapacitors with high energy and high power density in aqueous electrolytes. NANOSCALE 2013; 5:1067-73. [PMID: 23254316 DOI: 10.1039/c2nr33136e] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Supercapacitors with both high energy and high power densities are critical for many practical applications. In this paper, we discuss the design and demonstrate the fabrication of flexible asymmetric supercapacitors based on nanocomposite electrodes of MnO(2), activated carbon, carbon nanotubes and graphene. The combined unique properties of each of these components enable highly flexible and mechanically strong films that can serve as electrodes directly without using any current collectors or binders. Using these flexible electrodes and a roll-up approach, asymmetric supercapacitors with 2 V working voltage were successfully fabricated. The fabricated device showed excellent rate capability, with 78% of the original capacitance retained when the scan rate was increased from 2 mV s(-1) to 500 mV s(-1). Owing to the unique composite structure, these supercapacitors were able to deliver high energy density (24 W h kg(-1)) under high power density (7.8 kW kg(-1)) conditions. These features could enable supercapacitor based energy storage systems to be very attractive for a variety of critical applications, such as the power sources in hybrid electric vehicles and the back-up powers for wind and solar energy, where both high energy density and high power density are required.
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Affiliation(s)
- Yingwen Cheng
- Department of Chemistry, Duke University, Durham, NC 27708, USA
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90
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Zhang X, Yu P, Zhang H, Zhang D, Sun X, Ma Y. Rapid hydrothermal synthesis of hierarchical nanostructures assembled from ultrathin birnessite-type MnO2 nanosheets for supercapacitor applications. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.089] [Citation(s) in RCA: 243] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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91
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Kwon OS, Kim T, Lee JS, Park SJ, Park HW, Kang M, Lee JE, Jang J, Yoon H. Fabrication of graphene sheets intercalated with manganese oxide/carbon nanofibers: toward high-capacity energy storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:248-254. [PMID: 23034820 DOI: 10.1002/smll.201201754] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 08/30/2012] [Indexed: 06/01/2023]
Abstract
Herein, 3D nanohybrid architectures consisting of MnO(x) nanocrystals, carbon nanofibers (CNFs), and graphene sheets are fabricated. MnO(x) -decorated CNFs (MCNFs) with diameters of about 50 nm are readily obtained via single-nozzle co-electrospinning, followed by heat treatment. The MCNFs are then intercalated between graphene sheets, yielding the ternary nanohybrid MCNF/reduced graphene oxide (RGO). This straightforward synthesis process readily affords product on a scale of tens of grams. The ultrathin CNFs, which might be a promising alternative to carbon nanotubes (CNTs), overcome the low electrical conductivity of the excellent pseudocapacitive component, MnO(x) . Furthermore, the graphene sheets separated by the MCNFs boost the electrochemical performance of the nanohybrid electrodes. These nanohybrid electrodes exhibit enhanced specific capacitances compared with a sheet electrode fabricated of MCNF-only or RGO-only. Evidently, the RGO sheet acts as a conductive channel inside the nanohybrid, while the intercalated MCNFs increase the efficiency of the ion and charge transfer in the nanohybrid. The proposed nanohybrid architectures are expected to lay the foundation for the design and fabrication of high-performance electrodes.
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Affiliation(s)
- Oh Seok Kwon
- World Class University (WCU) program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea
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92
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Duay J, Gillette E, Hu J, Lee SB. Controlled electrochemical deposition and transformation of hetero-nanoarchitectured electrodes for energy storage. Phys Chem Chem Phys 2013; 15:7976-93. [DOI: 10.1039/c3cp50724f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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93
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Gao Y, Zhou YS, Qian M, Li HM, Redepenning J, Fan LS, He XN, Xiong W, Huang X, Majhouri-Samani M, Jiang L, Lu YF. High-performance flexible solid-state supercapacitors based on MnO2-decorated nanocarbon electrodes. RSC Adv 2013. [DOI: 10.1039/c3ra43039a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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94
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Synthesis of Mn3O4-anchored graphene sheet nanocomposites via a facile, fast microwave hydrothermal method and their supercapacitive behavior. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.08.127] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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95
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Tong X, Qin Y, Guo X, Moutanabbir O, Ao X, Pippel E, Zhang L, Knez M. Enhanced catalytic activity for methanol electro-oxidation of uniformly dispersed nickel oxide nanoparticles-carbon nanotube hybrid materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:3390-3395. [PMID: 22865674 DOI: 10.1002/smll.201200839] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 06/11/2012] [Indexed: 06/01/2023]
Abstract
Highy crystalline NiO nanoparticles are uniformly grown on the walls of carbon nanotubes (CNTs) by atomic layer deposition (ALD) at moderate temperature.Their size and stoichiometry are controlled by the ALD process parameters. The obtained NiO/CNT hybrids exhibit excellent performance in the electro-oxidation of methanol.
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Affiliation(s)
- Xili Tong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China; Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
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96
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Shu H, Wang X, Xie A, Li S, Huang F, Shen Y. One-step synthesis of PANI/Mn3O4 nanocomposites and evaluation of their electrochemical properties. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2012. [DOI: 10.1134/s0036024412130122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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97
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High-performance electrochemical capacitors using electrodeposited MnO2 on carbon nanotube array grown on carbon fabric. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.06.085] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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98
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Mao S, Wen Z, Kim H, Lu G, Hurley P, Chen J. A general approach to one-pot fabrication of crumpled graphene-based nanohybrids for energy applications. ACS NANO 2012; 6:7505-13. [PMID: 22838735 DOI: 10.1021/nn302818j] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Crumpled graphene oxide (GO)/graphene is a new type of carbon nanostructure that has drawn growing attention due to its three-dimensional open structure and excellent stability in an aqueous solution. Here we report a general and one-step approach to produce crumpled graphene (CG)-nanocrystal hybrids, which are produced by direct aerosolization of a GO suspension mixed with precursor ions. Nanocrystals spontaneously grow from precursor ions and assemble on both external and internal surfaces of CG balls during the solvent evaporation and GO crumpling process. More importantly, CG-nanocrystal hybrids can be directly deposited onto various current-collecting substrates, enabling their tremendous potential for energy applications. As a proof of concept, we demonstrate the use of hybrid electrodes of CG-Mn(3)O(4) and CG-SnO(2) in an electrochemical supercapacitor and a lithium-ion battery, respectively. The performance of the resulting capacitor/battery is attractive and outperforms conventional flat graphene-based hybrid devices. This study provides a new and facile route to fabricating high-performance hybrid CG-nanocrystal electrodes for various energy systems.
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Affiliation(s)
- Shun Mao
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin 53211, USA
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99
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Cheng Y, Lu S, Zhang H, Varanasi CV, Liu J. Synergistic effects from graphene and carbon nanotubes enable flexible and robust electrodes for high-performance supercapacitors. NANO LETTERS 2012; 12:4206-4211. [PMID: 22823066 DOI: 10.1021/nl301804c] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Flexible and lightweight energy storage systems have received tremendous interest recently due to their potential applications in wearable electronics, roll-up displays, and other devices. To manufacture such systems, flexible electrodes with desired mechanical and electrochemical properties are critical. Herein we present a novel method to fabricate conductive, highly flexible, and robust film supercapacitor electrodes based on graphene/MnO(2)/CNTs nanocomposites. The synergistic effects from graphene, CNTs, and MnO(2) deliver outstanding mechanical properties (tensile strength of 48 MPa) and superior electrochemical activity that were not achieved by any of these components alone. These flexible electrodes allow highly active material loading (71 wt % MnO(2)), areal density (8.80 mg/cm(2)), and high specific capacitance (372 F/g) with excellent rate capability for supercapacitors without the need of current collectors and binders. The film can also be wound around 0.5 mm diameter rods for fabricating full cells with high performance, showing significant potential in flexible energy storage devices.
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Affiliation(s)
- Yingwen Cheng
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA
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100
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Li Q, Wang ZL, Li GR, Guo R, Ding LX, Tong YX. Design and synthesis of MnO₂/Mn/MnO₂ sandwich-structured nanotube arrays with high supercapacitive performance for electrochemical energy storage. NANO LETTERS 2012; 12:3803-7. [PMID: 22730918 DOI: 10.1021/nl301748m] [Citation(s) in RCA: 181] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We demonstrate the design and fabrication of novel nanoarchitectures of MnO(2)/Mn/MnO(2) sandwich-like nanotube arrays for supercapacitors. The crystalline metal Mn layers in the MnO(2)/Mn/MnO(2) sandwich-like nanotubes uniquely serve as highly conductive cores to support the redox active two-double MnO(2) shells with a highly electrolytic accessible surface area and provide reliable electrical connections to MnO(2) shells. The maximum specific capacitances of 937 F/g at a scan rate of 5 mV/s by cyclic voltammetry (CV) and 955 F/g at a current density of 1.5 A/g by chronopotentiometry were achieved for the MnO(2)/Mn/MnO(2) sandwich-like nanotube arrays in solution of 1.0 M Na(2)SO(4). The hybrid MnO(2)/Mn/MnO(2) sandwich-like nanotube arrays exhibited an excellent rate capability with a high specific energy of 45 Wh/kg and specific power of 23 kW/kg and excellent long-term cycling stability (less 5% loss of the maximum specific capacitance after 3000 cycles). The high specific capacitance and charge-discharge rates offered by such MnO(2)/Mn/MnO(2) sandwich-like nanotube arrays make them promising candidates for supercapacitor electrodes, combining high-energy densities with high levels of power delivery.
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Affiliation(s)
- Qi Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
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