1
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Foldable and wearable supercapacitors for powering healthcare monitoring applications with improved performance based on hierarchically co-assembled CoO/NiCo networks. J Colloid Interface Sci 2023; 634:715-729. [PMID: 36563428 DOI: 10.1016/j.jcis.2022.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/17/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Small-scale and high-performance energy storage devices have drawn tremendous attention with their portable, lightweight, and multi-functionalized features. Here, we present a foldable supercapacitor with affordable flexibility by adopting a developed design and electrode material system as a way to extend usability. Notably, to resolve the limited energy density of conventional capacitors, we successfully synthesize the CoO/NiCo-layered double hydroxide (LDH) core-shell nanostructure on Ni framework as a cathode material. Further, glucose-based activated carbon (GBAC) is utilized for the anode. The CoO/NiCo-LDH electrodes exhibited a high specific capacitance of ∼284.8 mAh g-1 at 1 A g-1, and GBAC delivers a high specific capacitance of ∼166 F g-1 at 1 A g-1. In the following, the combinatorial integration of these materials enabled the asymmetric supercapacitor (ASC) to increase the energy density by enhancing the capacitance and the voltage window, in which a hydrogel-based electrolyte was facilitated for the foldable and wearable capability. The energy density of the ASC device was ∼24.9 Wh kg-1 at a power density of ∼779.5 W kg-1 with a voltage window of ∼1.6 V. As demonstrated, a self-powered energy source was demonstrated by a serially connected multi-ASC device with a help of a commercial solar cell, which was employed for powering wearable healthcare monitoring devices, including personal alarms for patients and recording the human body's electrical signals. The present work offers a viable approach to preparing potential candidates for high-performance electrodes of supercapacitors with deformable configurations to extend the powering capability of other electronic devices with physical functionalities used in wearable electronics.
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2
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Shin J, Park JK, Kim GW, Nam I, Park S. Agarose Gel-Templating Synthesis of a 3D Wrinkled Graphene Architecture for Enhanced Supercapacitor Performance. MICROMACHINES 2022; 13:mi13071113. [PMID: 35888929 PMCID: PMC9317825 DOI: 10.3390/mi13071113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 11/29/2022]
Abstract
The increasing use of rapidly fluctuating renewable energy sources, such as sunlight, has necessitated the use of supercapacitors, which are a type of energy storage system with high power. Chemically exfoliated graphene oxide (GO) is a representative starting material in the fabrication of supercapacitor electrodes based on reduced GO (rGO). However, the restacking of rGO sheets driven by π–π stacking interactions leads to a significant decrease in the electrochemically active surface area, leading to a loss of energy density. Here, to effectively inhibit restacking and construct a three-dimensional wrinkled structure of rGO (3DWG), we propose an agarose gel-templating method that uses agarose gel as a soft and removable template. The 3DWG, prepared via the sequential steps of gelation, freeze-drying, and calcination, exhibits a macroporous 3D structure and 5.5-fold higher specific capacitance than that of rGO restacked without the agarose template. Further, we demonstrate a “gel-stamping” method to fabricate thin-line patterned 3DWG, which involves the gelation of the GO–agarose gel within micrometer-sized channels of a customized polydimethylsiloxane (PDMS) mold. As an easy and low-cost manufacturing process, the proposed agarose gel templating method could provide a promising strategy for the 3D structuring of rGO.
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Affiliation(s)
- Junhyeop Shin
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Department of Advanced Materials Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.); (J.-K.P.)
| | - Jong-Kwon Park
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Department of Advanced Materials Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.); (J.-K.P.)
| | - Geon Woo Kim
- School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 31253, Korea;
| | - Inho Nam
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Department of Advanced Materials Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.); (J.-K.P.)
- Correspondence: (I.N.); (S.P.)
| | - Soomin Park
- School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 31253, Korea;
- Correspondence: (I.N.); (S.P.)
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3
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Liao H, Zhong W, Li T, Han J, Sun X, Tong X, Zhang Y. A review of self-healing electrolyte and their applications in flexible/stretchable energy storage devices. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139730] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Jang S, Kang J, Kwak S, Seol ML, Meyyappan M, Nam I. Methodologies for Fabricating Flexible Supercapacitors. MICROMACHINES 2021; 12:163. [PMID: 33562424 PMCID: PMC7915198 DOI: 10.3390/mi12020163] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/24/2021] [Accepted: 02/02/2021] [Indexed: 11/16/2022]
Abstract
The spread of wearable and flexible electronics devices has been accelerating in recent years for a wide range of applications. Development of an appropriate flexible power source to operate these flexible devices is a key challenge. Supercapacitors are attractive for powering portable lightweight consumer devices due to their long cycle stability, fast charge-discharge cycle, outstanding power density, wide operating temperatures and safety. Much effort has been devoted to ensure high mechanical and electrochemical stability upon bending, folding or stretching and to develop flexible electrodes, substrates and overall geometrically-flexible structures. Supercapacitors have attracted considerable attention and shown many applications on various scales. In this review, we focus on flexible structural design under six categories: paper-like, textile-like, wire-like, origami, biomimetics based design and micro-supercapacitors. Finally, we present our perspective of flexible supercapacitors and emphasize current technical difficulties to stimulate further research.
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Affiliation(s)
- Seohyeon Jang
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea; (S.J.); (J.K.); (S.K.)
| | - Jihyeon Kang
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea; (S.J.); (J.K.); (S.K.)
| | - Soyul Kwak
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea; (S.J.); (J.K.); (S.K.)
| | - Myeong-Lok Seol
- Center for Nanotechnology, NASA Ames Research Center, Moffett Field, CA 94035, USA; (M.-L.S.); (M.M.)
- Universities Space Research Association, NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - M. Meyyappan
- Center for Nanotechnology, NASA Ames Research Center, Moffett Field, CA 94035, USA; (M.-L.S.); (M.M.)
| | - Inho Nam
- School of Chemical Engineering and Materials Science, Department of Intelligent Energy and Industry, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea; (S.J.); (J.K.); (S.K.)
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Choi J, Nam D, Shin D, Song Y, Kwon CH, Cho I, Lee SW, Cho J. Charge-Transfer-Modulated Transparent Supercapacitor Using Multidentate Molecular Linker and Conductive Transparent Nanoparticle Assembly. ACS NANO 2019; 13:12719-12731. [PMID: 31642659 DOI: 10.1021/acsnano.9b04594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
One of the most critical issues in preparing high-performance transparent supercapacitors (TSCs) is to overcome the trade-off between areal capacitance and optical transmittance as well as that between areal capacitance and rate capability. Herein, we introduce a TSC with high areal capacitance, fast rate capability, and good optical transparency by minimizing the charge transfer resistance between pseudocapacitive nanoparticles (NPs) using molecular linker- and conductive NP-mediated layer-by-layer (LbL) assembly. For this study, bulky ligand-stabilized manganese oxide (MnO) and indium tin oxide (ITO) NP multilayers are LbL-assembled through a ligand exchange reaction between native ligands and small multidentate linkers (tricarballylic acid). The introduced molecular linker substantially decreases the separation distance between neighboring NPs, thereby reducing the contact resistance of electrodes. Moreover, the periodic insertion of ITO NPs into the MnO NP-based electrodes can lower the charge transfer resistance without a meaningful loss of transmittance, which can significantly improve the areal capacitance. The areal capacitances of the ITO NP-free electrode and the ITO NP-incorporated electrode are 24.6 mF cm-2 (at 61.6% transmittance) and 40.5 mF cm-2 (at 60.8%), respectively, which outperforms state of the art TSCs. Furthermore, we demonstrate a flexible symmetric solid-state TSC that exhibits scalable areal capacitance and optical transmittance.
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Affiliation(s)
- Jimin Choi
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Donghyeon Nam
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Dongyeeb Shin
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Youngkwon Song
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Cheong Hoon Kwon
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Ikjun Cho
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Seung Woo Lee
- School of Mechanical Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Jinhan Cho
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
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Oukassi S, Baggetto L, Dubarry C, Le Van-Jodin L, Poncet S, Salot R. Transparent Thin Film Solid-State Lithium Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2019; 11:683-690. [PMID: 30525408 DOI: 10.1021/acsami.8b16364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Transparent electrochemical energy storage devices have attracted extensive attention for the power supply of next-generation transparent electronics. In this paper, semitransparent thin film batteries (TFBs) with a grid-structured design have been fabricated on glass substrates using specific photolithography and etching processes to achieve LiCoO2/LiPON/Si structures below human eye resolution. UV-vis transmittances up to 60% have been measured for the obtained TFBs. A discharge capacity as high as 0.15 mAh has been recorded upon galvanostatic cycling at the C/2 rate within 4.2-3 V voltage range for the highest transmittances. The capacity variation trend exhibits an initial phase of a gradual decrease with an average capacity loss of 0.15% per cycle and thereafter a second phase with almost stable capacity. Particular attention has been given to the effects of architecture parameters on the TFB optical and electrochemical properties. To the best of our knowledge, this work is the first demonstration of transparent, all inorganic, thin film lithium ion batteries. While reported studies are limited to battery structures involving liquid or polymer materials, our devices will contribute to improve form factor freedom, extend operating ranges, enhance long-term stability, and will be relevant to the integration into various optoelectronic devices.
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Affiliation(s)
- Sami Oukassi
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
| | - Loic Baggetto
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
| | - Christophe Dubarry
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
| | - Lucie Le Van-Jodin
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
| | - Séverine Poncet
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
| | - Raphaël Salot
- Univ. Grenoble Alpes, CEA, LETI, MINATEC Campus, 38054 Grenoble , France
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7
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Jiao X, Zhang C, Yuan Z. Facile and Large-Area Preparation of Polypyrrole Film for Low-Haze Transparent Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41299-41311. [PMID: 30398835 DOI: 10.1021/acsami.8b13503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The transparent flexible supercapacitor is considered to be the key energy-storage component for the development of wearable and fully transparent electronic devices. However, the current transparent supercapacitor faces the low-haze challenge, which is essential for the high-definition visualization in transparent electronics. Herein, we developed a facile interfacial polymerization approach for the large-area preparation of flexible polypyrrole/polyethylene terephthalate (PPy/PET) transparent conductive films in a cost-effective way. The PPy/PET film exhibits a highly uniform morphology and a low haze level of 1.40% (corresponding to high definition) as well as negligible resistance changing under an ultrasmall bending radius. The sandwich-structured, large-area, transparent supercapacitor assembled based on the PPy/PET films also keeps a similar low haze level. A facile N, N-dimethylformamide etchant-written strategy on the PPy/PET film is developed to fabricate the patterned micro-supercapacitors (MSCs) in series in scalable area, which show a low haze level of 1.66% and a high transparency of 70.2%. Significantly, the low-haze MSC possesses high energy-storage capacity and presents almost no capacitance loss at an extreme bending state. This work demonstrates a facile preparation of large-area and low-haze transparent flexible supercapacitors and also enlightens broad interests in their potential integrity toward the fully transparent wearable electronics.
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8
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Zhang L, Meng Z, Qi Q, Yan W, Lin N, Liu XY. Aqueous supercapacitors based on carbonized silk electrodes. RSC Adv 2018; 8:22146-22153. [PMID: 35541726 PMCID: PMC9081126 DOI: 10.1039/c8ra01988f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/25/2018] [Indexed: 12/19/2022] Open
Abstract
Graphitic nitrogen-doped hierarchical porous carbon nanosheets for supercapacitor application were derived from an easily obtained and green silk by simultaneous ZnCl2 activation and FeCl3 graphitization at different heating temperatures. By increasing the heating temperature from 700 to 850 °C, the degree of graphitization and BET surface area rose to their highest levels, while the nitrogen doping content was maintained at 2.24 wt%. Carbonized silk at 850 °C displays a nanosheet morphology and a considerable specific surface area (1285.31 m2 g-1), and it was fabricated into a supercapacitor as an electrode material, exhibiting superior electrochemical performance with a high specific capacitance of 178 F g-1 at 0.5 A g-1 and an excellent rate capability (81% capacitance retention ratio even at 20 A g-1) in 1 mol L-1 H2SO4 electrolyte. A symmetric supercapacitor using carbonized silk at 850 °C as the electrodes has an excellent specific energy of 14.33 W h kg-1 at a power density of 251 W kg-1 operated over a wide voltage range of 2.0 V in aqueous neutral Na2SO4 electrolyte.
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Affiliation(s)
- Limei Zhang
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
| | - Zhaohui Meng
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
| | - Qiaoyun Qi
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
| | - Wen Yan
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
| | - Naibo Lin
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
| | - Xiang Yang Liu
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, College of Materials, Xiamen University 422 Siming Nan Road Xiamen 361005 P. R. China
- Department of Physics, National University of Singapore 2 Science Drive 3 Singapore 117542 Singapore
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9
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Zhang CJ, Anasori B, Seral-Ascaso A, Park SH, McEvoy N, Shmeliov A, Duesberg GS, Coleman JN, Gogotsi Y, Nicolosi V. Transparent, Flexible, and Conductive 2D Titanium Carbide (MXene) Films with High Volumetric Capacitance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702678. [PMID: 28741695 DOI: 10.1002/adma.201702678] [Citation(s) in RCA: 304] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 06/11/2017] [Indexed: 05/21/2023]
Abstract
2D transition-metal carbides and nitrides, known as MXenes, have displayed promising properties in numerous applications, such as energy storage, electromagnetic interference shielding, and catalysis. Titanium carbide MXene (Ti3 C2 Tx ), in particular, has shown significant energy-storage capability. However, previously, only micrometer-thick, nontransparent films were studied. Here, highly transparent and conductive Ti3 C2 Tx films and their application as transparent, solid-state supercapacitors are reported. Transparent films are fabricated via spin-casting of Ti3 C2 Tx nanosheet colloidal solutions, followed by vacuum annealing at 200 °C. Films with transmittance of 93% (≈4 nm) and 29% (≈88 nm) demonstrate DC conductivity of ≈5736 and ≈9880 S cm-1 , respectively. Such highly transparent, conductive Ti3 C2 Tx films display impressive volumetric capacitance (676 F cm-3 ) combined with fast response. Transparent solid-state, asymmetric supercapacitors (72% transmittance) based on Ti3 C2 Tx and single-walled carbon nanotube (SWCNT) films are also fabricated. These electrodes exhibit high capacitance (1.6 mF cm-2 ) and energy density (0.05 µW h cm-2 ), and long lifetime (no capacitance decay over 20 000 cycles), exceeding that of graphene or SWCNT-based transparent supercapacitor devices. Collectively, the Ti3 C2 Tx films are among the state-of-the-art for future transparent, conductive, capacitive electrodes, and translate into technologically viable devices for next-generation wearable, portable electronics.
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Affiliation(s)
- Chuanfang John Zhang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Babak Anasori
- Department of Materials Science and Engineering, A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - Andrés Seral-Ascaso
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sang-Hoon Park
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Aleksey Shmeliov
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Georg S Duesberg
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr, 85577, Neubiberg, München, Germany
| | - Jonathan N Coleman
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Yury Gogotsi
- Department of Materials Science and Engineering, A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
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10
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Chen F, Wan P, Xu H, Sun X. Flexible Transparent Supercapacitors Based on Hierarchical Nanocomposite Films. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17865-17871. [PMID: 28493666 DOI: 10.1021/acsami.7b02460] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Flexible transparent electronic devices have recently gained immense popularity in smart wearable electronics and touch screen devices, which accelerates the development of the portable power sources with reliable flexibility, robust transparency and integration to couple these electronic devices. For potentially coupled as energy storage modules in various flexible, transparent and portable electronics, the flexible transparent supercapacitors are developed and assembled from hierarchical nanocomposite films of reduced graphene oxide (rGO) and aligned polyaniline (PANI) nanoarrays upon their synergistic advantages. The nanocomposite films are fabricated from in situ PANI nanoarrays preparation in a blended solution of aniline monomers and rGO onto the flexible, transparent, and stably conducting film (FTCF) substrate, which is obtained by coating silver nanowires (Ag NWs) layer with Meyer rod and then coating of rGO layer on polyethylene terephthalate (PET) substrate. Optimization of the transparency, the specific capacitance, and the flexibility resulted in the obtained all-solid state nanocomposite supercapacitors exhibiting enhanced capacitance performance, good cycling stability, excellent flexibility, and superior transparency. It provides promising application prospects for exploiting flexible, low-cost, transparent, and high-performance energy storage devices to be coupled into various flexible, transparent, and wearable electronic devices.
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Affiliation(s)
- Fanhong Chen
- Center of Advanced Elastomer Materials, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Pengbo Wan
- Center of Advanced Elastomer Materials, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Haijun Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China
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11
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Su H, Zhu P, Zhang L, Zhou F, Li G, Li T, Wang Q, Sun R, Wong C. Waste to wealth: A sustainable and flexible supercapacitor based on office waste paper electrodes. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Liu W, Song MS, Kong B, Cui Y. Flexible and Stretchable Energy Storage: Recent Advances and Future Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603436. [PMID: 28042889 DOI: 10.1002/adma.201603436] [Citation(s) in RCA: 347] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 07/27/2016] [Indexed: 05/22/2023]
Abstract
Energy-storage technologies such as lithium-ion batteries and supercapacitors have become fundamental building blocks in modern society. Recently, the emerging direction toward the ever-growing market of flexible and wearable electronics has nourished progress in building multifunctional energy-storage systems that can be bent, folded, crumpled, and stretched while maintaining their electrochemical functions under deformation. Here, recent progress and well-developed strategies in research designed to accomplish flexible and stretchable lithium-ion batteries and supercapacitors are reviewed. The challenges of developing novel materials and configurations with tailored features, and in designing simple and large-scaled manufacturing methods that can be widely utilized are considered. Furthermore, the perspectives and opportunities for this emerging field of materials science and engineering are also discussed.
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Affiliation(s)
- Wei Liu
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Min-Sang Song
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Energy Material Lab, Material Research Center, Samsung Advanced Institute of Technology, Samsung Electronics, 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16678, Republic of Korea
| | - Biao Kong
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Yi Cui
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94205, USA
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13
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Luo J, Tang W, Fan FR, Liu C, Pang Y, Cao G, Wang ZL. Transparent and Flexible Self-Charging Power Film and Its Application in a Sliding Unlock System in Touchpad Technology. ACS NANO 2016; 10:8078-8086. [PMID: 27501289 DOI: 10.1021/acsnano.6b04201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Portable and wearable personal electronics and smart security systems are accelerating the development of transparent, flexible, and thin-film electronic devices. Here, we report a transparent and flexible self-charging power film (SCPF) that functions either as a power generator integrated with an energy storage unit or as a self-powered information input matrix. The SCPF possesses the capability of harvesting mechanical energy from finger motions, based on the coupling between the contact electrification and electrostatic induction effects, and meanwhile storing the generated energy. Under the fast finger sliding, the film can be charged from 0 to 2.5 V within 2094 s and discharge at 1 μA for approximately 1630 s. Furthermore, the film is able to identify personal characteristics during a sliding motion by recording the electric signals related to the person's individual bioelectricity, applied pressing force, sliding speed, and so on, which shows its potential applications in security systems in touchpad technology.
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Affiliation(s)
- Jianjun Luo
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
| | - Wei Tang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
| | - Feng Ru Fan
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
| | - Chaofeng Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
| | - Yaokun Pang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
| | - Guozhong Cao
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
- Department of Materials Science and Engineering, University of Washington , Seattle, Washington 98195, United States
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , National Center for Nanoscience and Technology (NCNST), Beijing 100083, China
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
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14
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Su H, Zhu P, Zhang L, Zeng W, Zhou F, li G, Li T, Wang Q, Sun R, Wong C. Low cost, high performance flexible asymmetric supercapacitor based on modified filter paper and an ultra-fast packaging technique. RSC Adv 2016. [DOI: 10.1039/c6ra14885a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A low cost, high performance flexible PF–RGO//PF–RGO–PANI asymmetric supercapacitor based on modified filter paper is reported together with an ultra-fast and layer by layer packaging technique.
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Affiliation(s)
- Haibo Su
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
- School of Materials Science and Engineering
| | - Pengli Zhu
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
- Department of Electronics Engineering
| | - Leicong Zhang
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
| | - Wenjin Zeng
- School of Materials Science and Engineering
- Nanjing University of Posts and Telecommunications
- Nanjing
- China
| | - Fengrui Zhou
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
| | - Gang li
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
| | - Tingxi Li
- School of Materials Science and Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- P. R. China
| | - Qing Wang
- School of Materials Science and Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- P. R. China
| | - Rong Sun
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
| | - Chingping Wong
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
- Department of Electronics Engineering
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15
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Higgins TM, Coleman JN. Avoiding Resistance Limitations in High-Performance Transparent Supercapacitor Electrodes Based on Large-Area, High-Conductivity PEDOT:PSS Films. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16495-16506. [PMID: 26177473 DOI: 10.1021/acsami.5b03882] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
UNLABELLED This work describes the potential of thin, spray-deposited, large-area poly(3,4-ethylenedioxythiophene)/poly(styrene-4-sulfonate) ( PEDOT PSS) conducting polymer films for use as transparent supercapacitor electrodes. To facilitate this, we provide a detailed explanation of the factors limiting the performance of such electrodes. These films have a very low optical conductivity of σop = 24 S/cm (at 550 nm), crucial for this application, and a reasonable volumetric capacitance of CV = 41 F/cm(3). Secondary doping with formic acid gives these films a DC conductivity of σDC = 936 S/cm, allowing them to perform both as a transparent conductor/current collector and transparent supercapacitor electrode. Small-area films (A ∼ 1 cm(2)) display measured areal capacitance as high as 1 mF/cm(2), even for reasonably transparent electrodes (T ∼ 80%). However, in real devices, the absolute capacitance will be maximized by increasing the device area. As such, here, we measure the electrode performance as a function of its length and width. We find that the measured areal capacitance falls dramatically with scan rate and sample length but is independent of width. We show that this is because the measured areal capacitance is limited by the electrical resistance of the electrode. We have derived an equation for the measured areal capacitance as a function of scan rate and electrode lateral dimensions that fits the data extremely well up to scan rates of ∼1000 mV/s (corresponding to charge/discharge times > 0.6 s). These results are self-consistent with independent analysis of the electrical and impedance properties of the electrodes. These results can be used to find limiting combinations of electrode length and scan rate, beyond which electrode performance falls dramatically. We use these insights to build large-area (∼100 cm(2)) supercapacitors using electrodes that are 95% transparent, providing a capacitance of ∼12 mF (at 50 mV/s), significantly higher than that of any previously reported transparent supercapacitor.
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Affiliation(s)
- Thomas M Higgins
- School of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Jonathan N Coleman
- School of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
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16
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Moon WG, Kim GP, Lee M, Song HD, Yi J. A biodegradable gel electrolyte for use in high-performance flexible supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3503-11. [PMID: 25622040 DOI: 10.1021/am5070987] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Despite the significant advances in solid polymer electrolytes used for supercapacitors, intractable problems including poor ionic conductivity and low electrochemical performance limit the practical applications. Herein, we report a facile approach to synthesize a NaCl-agarose gel electrolyte for use in flexible supercapacitors. The as-prepared agarose hydrogel consists of a three-dimensional chemically interconnected agarose backbone and oriented interparticular submicropores filled with water. The interconnected agarose matrix acts as a framework that provides mechanical stability to the gel electrolyte and hierarchical porous networks for optimized ion transport. The developed pores with the water filler provide an efficient ionic pathway to the storage sites of electrode. With these properties, the gel electrolyte enables the supercapacitor to have a high specific capacitance of 286.9 F g(-1) and a high rate capability that is 80% of specific capacitance obtained in the case of a liquid electrolyte at 100 mV s(-1). In addition, attributed to the simple procedure and its components, the gel electrolyte is highly scalable, cost-effective, safe, and nontoxic. Thus, the developed gel electrolyte has the potential for use in various energy storage and delivery systems.
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Affiliation(s)
- Won Gyun Moon
- World Class University Program of Chemical Convergence for Energy & Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Republic of Korea
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17
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18
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Chuminjak Y, Daothong S, Reanpang P, Mensing JP, Phokharatkul D, Jakmunee J, Wisitsoraat A, Tuantranont A, Singjai P. Electrochemical energy-storage performances of nickel oxide films prepared by a sparking method. RSC Adv 2015. [DOI: 10.1039/c5ra09408a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The sparking method is a practical and effective preparation technique for porous nickel oxide films, suitable for energy-storage applications.
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Affiliation(s)
- Yaowamarn Chuminjak
- Deparment of Physics and Materials Science
- Faculty of Science
- Chiang Mai University
- Chiang Mai
- Thailand
| | - Suphaporn Daothong
- Program in Materials Science
- Faculty of Science
- Maejo University
- Chiang Mai
- Thailand
| | - Preeyaporn Reanpang
- Research Laboratory for Analytical Instrument and Electrochemistry Innovation
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Johannes Philipp Mensing
- Nanoelectronics and MEMS Laboratory
- National Electronics and Computer Technology Center (NECTEC)
- Pathumthani
- Thailand
| | - Ditsayut Phokharatkul
- Nanoelectronics and MEMS Laboratory
- National Electronics and Computer Technology Center (NECTEC)
- Pathumthani
- Thailand
| | - Jaroon Jakmunee
- Research Laboratory for Analytical Instrument and Electrochemistry Innovation
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Anurat Wisitsoraat
- Nanoelectronics and MEMS Laboratory
- National Electronics and Computer Technology Center (NECTEC)
- Pathumthani
- Thailand
| | - Adisorn Tuantranont
- Nanoelectronics and MEMS Laboratory
- National Electronics and Computer Technology Center (NECTEC)
- Pathumthani
- Thailand
| | - Pisith Singjai
- Deparment of Physics and Materials Science
- Faculty of Science
- Chiang Mai University
- Chiang Mai
- Thailand
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19
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Qiu T, Luo B, Giersig M, Akinoglu EM, Hao L, Wang X, Shi L, Jin M, Zhi L. Au@MnO2 core-shell nanomesh electrodes for transparent flexible supercapacitors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4136-4141. [PMID: 24976434 DOI: 10.1002/smll.201401250] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Indexed: 06/03/2023]
Abstract
A novel Au@MnO2 supercapacitor is presented. The sophisticated core-shell architecture combining an Au nanomesh core with a MnO2 shell on a flexible polymeric substrate is demonstrated as an electrode for high performance transparent flexible supercapacitors (TFSCs). Due to their unique structure, high areal/gravimetric capacitance and rate capability for TFSCs are achieved.
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Affiliation(s)
- Tengfei Qiu
- National Center for Nanoscience and Technology, Zhongguancun, Beiyitiao No.11, Beijing, 100190, P. R. China
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20
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Yuksel R, Sarioba Z, Cirpan A, Hiralal P, Unalan HE. Transparent and flexible supercapacitors with single walled carbon nanotube thin film electrodes. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15434-9. [PMID: 25127070 DOI: 10.1021/am504021u] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We describe a simple process for the fabrication of transparent and flexible, solid-state supercapacitors. Symmetric electrodes made up of binder-free single walled carbon nanotube (SWCNT) thin films were deposited onto polydimethylsiloxane substrates by vacuum filtration followed by a stamping method, and solid-state supercapacitor devices were assembled using a gel electrolyte. An optical transmittance of 82% was found for 0.02 mg of SWCNTs, and a specific capacitance of 22.2 F/g was obtained. The power density can reach to 41.5 kW · kg(-1) and shows good capacity retention (94%) upon cycling over 500 times. Fabricated supercapacitors will be relevant for the realization of transparent and flexible devices with energy storage capabilities, displays and touch screens in particular.
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Affiliation(s)
- Recep Yuksel
- Department of Micro and Nanotechnology, Middle East Technical University , Ankara 06800, Turkey
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21
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Fan X, Chen T, Dai L. Graphene networks for high-performance flexible and transparent supercapacitors. RSC Adv 2014. [DOI: 10.1039/c4ra05076b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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22
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Ryu I, Yang M, Kwon H, Park HK, Do YR, Lee SB, Yim S. Coaxial RuO₂-ITO nanopillars for transparent supercapacitor application. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1704-1709. [PMID: 24479956 DOI: 10.1021/la4044599] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Supercapacitive properties of ruthenium oxide (RuO2) nanoparticles electrodeposited onto the indium tin oxide (ITO) nanopillars were investigated. Compared to conventional planar current collectors, this coaxially nanostructured current collector-electrode system can provide increased contact for efficient charge transport, and the internanopillar spacing allows easy access of electrolyte ions. The morphological and electrochemical properties depended on the thickness of the RuO2 layers, i.e., the number of electrodeposition cycles. A maximum specific capacitance, Csp, of 1235 F/g at a scan rate of 50 mV/s was achieved for the 30-cycle deposited RuO2-ITO nanopillars. The other capacitive properties such as electrochemical reversibility and Csp retention at high scan rates also improved greatly.
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Affiliation(s)
- Ilhwan Ryu
- Department of Chemistry, Kookmin University , Seoul 136-702, South Korea
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23
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Chen T, Xue Y, Roy AK, Dai L. Transparent and stretchable high-performance supercapacitors based on wrinkled graphene electrodes. ACS NANO 2014; 8:1039-46. [PMID: 24350978 DOI: 10.1021/nn405939w] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Transparent and/or stretchable energy storage devices have attracted intense attention due to their unique optical and/or mechanical properties as well as their intrinsic energy storage function. However, it remains a great challenge to integrate transparent and stretchable properties into an energy storage device because the currently developed electrodes are either transparent or stretchable, but not both. Herein, we report a simple method to fabricate wrinkled graphene with high stretchability and transparency. The resultant wrinkled graphene sheets were used as both current collector and electrode materials to develop transparent and stretchable supercapacitors, which showed a high transparency (57% at 550 nm) and can be stretched up to 40% strain without obvious performance change over hundreds of stretching cycles.
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Affiliation(s)
- Tao Chen
- Center of Advanced Science and Engineering for Carbon (Case4Carbon) and Department of Macromolecular Science and Engineering, Case Western Reserve University , 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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24
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Park S, Nam I, Kim GP, Han JW, Yi J. Hybrid MnO2 film with agarose gel for enhancing the structural integrity of thin film supercapacitor electrodes. ACS APPLIED MATERIALS & INTERFACES 2013; 5:9908-9912. [PMID: 24080145 DOI: 10.1021/am403532m] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report on the fabrication of a robust hybrid film containing MnO2 for achieving large areal capacitances. An agarose gel, as an ion-permeable and elastic layer coated on a current collector, plays a key role in stabilizing the deposited pseudocapacitive MnO2. Cyclic voltammetry and electrochemical impedance spectroscopy data indicate that the hybrid electrode is capable of exhibiting a high areal capacitance up to 52.55 mF cm(-2), with its superior structural integrity and adhesiveness to the current collector being maintained, even at a high MnO2 loading.
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Affiliation(s)
- Soomin Park
- World Class University (WCU) program of Chemical Convergence for Energy & Environment (C2E2), Institute of Chemical Processes, School of Chemical and Biological Engineering, College of Engineering, Seoul National University , Seoul, 151-742, Republic of Korea
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25
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You B, Wang L, Yao L, Yang J. Three dimensional N-doped graphene–CNT networks for supercapacitor. Chem Commun (Camb) 2013; 49:5016-8. [DOI: 10.1039/c3cc41949e] [Citation(s) in RCA: 306] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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26
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Singh A, Salmi Z, Joshi N, Jha P, Decorse P, Lecoq H, Lau-Truong S, Jouini M, Aswal DK, Chehimi MM. Electrochemical investigation of free-standing polypyrrole–silver nanocomposite films: a substrate free electrode material for supercapacitors. RSC Adv 2013. [DOI: 10.1039/c3ra42786b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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