1
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Xu M, Zhu J, Xie J, Mao Y, Hu W. Dynamically Cross-Linked, Self-Healable, and Stretchable All-Hydrogel Supercapacitor with Extraordinary Energy Density and Real-Time Pressure Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305448. [PMID: 37880904 DOI: 10.1002/smll.202305448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/17/2023] [Indexed: 10/27/2023]
Abstract
Wearable electronics with flexible, integrated, and self-powered multi-functions are becoming increasingly attractive, but their basic energy storage units are challenged in simultaneously high energy density, self-healing, and real-time sensing capability. To achieve this, a fully flexible and omni-healable all-hydrogel, that is dynamically crosslinked PVA@PANI hydrogel, is rationally designed and constructed via aniline/DMSO-emulsion-templated in situ freezing-polymerization strategy. The PVA@PANI sheet, not only possesses a honeycombed porous conductive mesh configuration with superior flexibility that provides numerous channels for unimpeded ions/electron transport and maximizes the utilization efficiency of pseudocapacitive PANI, but also can conform to complicated body surface, enabling effective detection and discrimination of body movements. As a consequence, the fabricated flexible PVA@PANI sheet electrode demonstrates an unprecedented specific capacitance (936.8 F g-1 ) and the assembled symmetric flexible all-solid-state supercapacitor delivers an extraordinary energy density of 40.98 Wh kg-1 , outperforming the previously highest-reported values of stretchable PVA@PANI hydrogel-based supercapacitors. What is more, such a flexible supercapacitor electrode enables precisely monitoring the full-range human activities in real-time, and fulfilling a quick response and excellent self-recovery. These outstanding flexible sensing and energy storage performances render this emerging PVA@PANI hydrogel highly promising for the next-generation wearable self-powered sensing electronics.
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Affiliation(s)
- Muchun Xu
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
| | - Jiajun Zhu
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
| | - Jiyang Xie
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
- Electron Microscopy Center, Yunnan University, Kunming, 650091, P. R. China
| | - Yongyun Mao
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
- Electron Microscopy Center, Yunnan University, Kunming, 650091, P. R. China
- Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming, 650091, P. R. China
| | - Wanbiao Hu
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
- Electron Microscopy Center, Yunnan University, Kunming, 650091, P. R. China
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2
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Liang R, Liu S, Lin J, Dai J, Peng J, Huang P, Chen J, Xiao P. A high mass loading flexible electrode with a sheet-like Mn 3O 4/NiMoO 4@NiCo LDH on a carbon cloth for supercapacitors. RSC Adv 2023; 13:33463-33470. [PMID: 38025852 PMCID: PMC10646476 DOI: 10.1039/d3ra06937k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Mass loading is an important parameter to evaluate the application potential of active materials in high-capacity supercapacitors. Synthesizing active materials with high mass loading is a promising strategy to improve high performance energy storage devices. Preparing electrode materials with a porous structure is of significance to overcome the disadvantages brought by high mass loading. In this work, a Mn3O4/NiMoO4@NiCo layered double hydroxide (MO/NMO/NiCo LDH) positive electrode is fabricated on a carbon cloth with a high mass loading of 20.4 mg cm-2. The MO/NMO/NiCo LDH presents as a special three-dimensional porous nanostructure and exhibits a high specific capacitance of 815 F g-1 at 1 A g-1. Impressively, the flexible supercapacitor based on the MO/NMO/NiCo LDH positive electrode and an AC negative electrode delivers a maximum energy density of 22.5 W h kg-1 and a power density of 8730 W kg-1. It also retains 60.84% of the original specific capacitance after bending to 180° 600 times. Moreover, it exhibits 76.92% capacitance retention after 15 000 charge/discharge cycles. These results make MO/NMO/NiCo LDH one of the most attractive candidates of positive electrode materials for high-performance flexible supercapacitors.
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Affiliation(s)
- Ruibin Liang
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Si Liu
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Jianrong Lin
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Jingfei Dai
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Jingyi Peng
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Peiyuan Huang
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
| | - Jianwen Chen
- School of Electronic and Information Engineering, Foshan University Foshan 528000 China
| | - Peng Xiao
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University Foshan 528225 China
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3
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Chen S, Zhang Y, Tian D, You Q, Zhong M, Hu C, Chen J. Polyaniline combining with ultrathin manganese dioxide nanosheets on carbon nanofibers as effective binder-free supercapacitor electrode. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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4
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Etman A, Ibrahim A, Darwish F, Qasim K. A 10 years-developmental study on conducting polymers composites for supercapacitors electrodes: a review for extensive data interpretation. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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5
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Surplus Charge Injection Enables High-Voltage Stable 2D Polyaniline Supercapacitors. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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6
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Gu Y, Xu D, Chen S, You F, Hu C, Huang H, Chen J. In Situ Growth of MnO 2 Nanosheets on a Graphite Flake as an Effective Binder-Free Electrode for High-Performance Supercapacitors. ACS OMEGA 2022; 7:48320-48331. [PMID: 36591178 PMCID: PMC9798508 DOI: 10.1021/acsomega.2c06506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In this work, manganese dioxide (MnO2) nanosheets in situ loaded on a high-purity graphite flake (GF) were prepared by one-step hydrothermal deposition. It was found that the specific capacitance value of a single MnO2/GF electrode was 882 F/g at a current density of 1.0 A/g in a KOH electrolyte, and the specific capacitance retention of the MnO2/GF electrode can reach about 90.1% after 5000 charge-discharge cycles at a current density of 10 A/g. Furthermore, a MnO2/GF∥MnO2/GF symmetric supercapacitor device was fabricated with two pieces of MnO2/GF electrodes and ordinary filter paper with a 1 M KOH/PVA gel electrolyte as a separator. The single symmetric device displayed a high energy density of 64.2 Wh/kg at a power density of 400 W/kg within an applied voltage of 1.6 V, and this value was superior to those of previously reported MnO2-based systems. A tandem device consisting of a five-series tandem device (the applied voltage of a single device was 0.7 V) and a three-series tandem device (the applied voltage of a single device was 1.6 V) was prepared to drive a red light-emitting diode (LED). These findings open up application prospects for MnO2-based composite electrode materials for high-performance supercapacitors.
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Affiliation(s)
- Yuanhang Gu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Dong Xu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Shaoyun Chen
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Feng You
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Chenglong Hu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Huabo Huang
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Jian Chen
- Instrumental
Analysis and Research Center, Sun Yat-sen
University, Guangzhou510275, P. R. China
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7
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Wang L, Xu X, Zhang C, Cao X, Liu L, Li R, Wang C, Satoh T. Fabrication of electrospun polyetherimide/polyaniline self-supporting microfiber membranes as electrodes for flexible supercapacitors via in-situ polymerization. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Ning F, Gao X, Yao F, Zhang H, Yu Y, Xie Y, Yue H. A novel NiCo2S4 nanocone arrays/P‐doped hollow carbon nanosphere for high electrochemical performance supercapacitors. ChemElectroChem 2022. [DOI: 10.1002/celc.202200135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Feng Ning
- Harbin University of Science and Technology School of Materials Science and Engineering CHINA
| | - Xin Gao
- Harbin University of Science and Technology School of Materials Science and Engineering CHINA
| | - Fei Yao
- University at Buffalo Department of Materials Design and Innovation UNITED STATES
| | - Hengwei Zhang
- Harbin University of Science and Technology Department of Materials Design and Innovation CHINA
| | - Yanfei Yu
- Harbin University of Science and Technology Department of Materials Design and Innovation CHINA
| | - Yanqiu Xie
- Harbin University of Science and Technology School of Materials Science and Engineering CHINA
| | - Hongyan Yue
- Harbin University of Science and Technology School of Materials Science and Engineering harbin 150040 harbin CHINA
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9
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Hamidouche F, Sanad MM, Ghebache Z, Boudieb N. Effect of polymerization conditions on the physicochemical and electrochemical properties of SnO2/polypyrrole composites for supercapacitor applications. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131964] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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The ordered polyaniline nanowires wrapped on the polypyrrole nanotubes as electrode materials for electrochemical energy storage. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139328] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Zhao Z, Xia K, Hou Y, Zhang Q, Ye Z, Lu J. Designing flexible, smart and self-sustainable supercapacitors for portable/wearable electronics: from conductive polymers. Chem Soc Rev 2021; 50:12702-12743. [PMID: 34643198 DOI: 10.1039/d1cs00800e] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rapid development of portable/wearable electronics proposes new demands for energy storage devices, which are flexibility, smart functions and long-time outdoor operation. Supercapacitors (SCs) show great potential in portable/wearable applications, and the recently developed flexible, smart and self-sustainable supercapacitors greatly meet the above demands. In these supercapacitors, conductive polymers (CPs) are widely applied due to their high flexibility, conductivity, pseudo-capacitance, smart characteristics and moderate preparation conditions. Herein, we'd like to introduce the CP-based flexible, smart and self-sustainable supercapacitors for portable/wearable electronics. This review first summarizes the flexible SCs based on CPs and their composites with carbon materials and metal compounds. The smart supercapacitors, i.e., electrochromic, electrochemical actuated, stretchable, self-healing and stimuli-sensitive ones, are then presented. The self-sustainable SCs which integrate SC units with energy-harvesting units in one compact configuration are also introduced. The last section highlights some current challenges and future perspectives of this thriving field.
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Affiliation(s)
- Zhenyun Zhao
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Kequan Xia
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Yang Hou
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qinghua Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhizhen Ye
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. .,Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, China
| | - Jianguo Lu
- State Key Laboratory of Silicon Materials, Key Laboratory for Biomedical Engineering of Ministry of Education, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. .,Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, China
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12
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Naidu KCB, Kumar NS, Banerjee P, Reddy BVS. A review on the origin of nanofibers/nanorods structures and applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:68. [PMID: 34117944 PMCID: PMC8197713 DOI: 10.1007/s10856-021-06541-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 05/30/2021] [Indexed: 05/11/2023]
Abstract
In this review work, we highlight the origin of morphological structures such as nanofibers/nanorods in case of various materials in nano as well as bulk form. In addition, a discussion on different cations of different ionic radii and other intrinsic factors is provided. The materials (ceramic titanates, ferrites, hexaferrites, oxides, organic/inorganic composites, etc.,) exhibiting the nanofibers/nanorods like morphological structures are tabulated. Furthermore, the significance of nanofibers/nanorods obtained from distinct materials is elucidated in multiple scientific and technological fields. At the end, the device applications of these morphological species are also described in the current technology. The nucleation and growth mechanism of α-MnO2 nanorods using natural extracts from Malus domestica and Vitis vinifera [3].
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Affiliation(s)
- K Chandra Babu Naidu
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India.
| | - N Suresh Kumar
- Department of Physics, JNTUA, Anantapuramu, 515002, Andhra Pradesh, India
| | - Prasun Banerjee
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
| | - B Venkata Shiva Reddy
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
- Department of Physics, The National College, Bagepalli, 561207, Karnataka, India
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13
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Wu X, Zhang H, He C, Wu C, Huang KJ. High-power-energy proton supercapacitor based on interface-adapted durable polyaniline and hexagonal tungsten oxide. J Colloid Interface Sci 2021; 601:727-733. [PMID: 34091319 DOI: 10.1016/j.jcis.2021.05.157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 01/06/2023]
Abstract
Supercapacitors are high power energy storage devices, however, their application are remain limited by the low energy density. Developing high capacity electrode materials and constructing devices with high operating voltage are effective ways to solve this problem. Herein, performance of polyaniline (PANI) electrode materials is dramatically enhanced by engineering robust PANI/carbon interfaces, through assembling PANI nanorod array on rose petals derived carbon network (RPDCN). The structure of the PANI is optimized by adjusting the concentration of the aniline precursor. The unique structure enables the prepared PANI/RPDCN composite show a high capacitance of 636 F g-1 at 0.5 A g-1, based on the total weight of PANI and RPDCN substrate. The robust interface effectively prolonged the composite electrode stably cycled for over 2000 cycles at 2 A g-1 with a capacity retention of 89%. When coupled with a hexagonal tungsten oxide (h-WO3) anode, a high-power asymmetric proton supercapacitor with high energy densities (29.0 Wh kg-1/0.61 kW kg-1 and 21.4 Wh kg-1/19.51 kW kg-1) was assembled. This work provides an effective and eco-friendly route toward superior PANI electrodes and proposes a promising high-power energy storage system using proton as working ion.
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Affiliation(s)
- Xu Wu
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China
| | - Huanhuan Zhang
- Collaborative Innovation Center of Henan Province for Energy-Saving Building Materials, Xinyang Normal University, Xinyang 464000, China
| | - Chuan He
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Chen Wu
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.
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14
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Zhang M, Nautiyal A, Du H, Wei Z, Zhang X, Wang R. Electropolymerization of polyaniline as high-performance binder free electrodes for flexible supercapacitor. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138037] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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15
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Liu B, Zhang X, Tian D, Li Q, Zhong M, Chen S, Hu C, Ji H. In Situ Growth of Oriented Polyaniline Nanorod Arrays on the Graphite Flake for High-Performance Supercapacitors. ACS OMEGA 2020; 5:32395-32402. [PMID: 33376876 PMCID: PMC7758985 DOI: 10.1021/acsomega.0c04212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/02/2020] [Indexed: 06/12/2023]
Abstract
Polyaniline with oriented nanorod arrays could provide high surface area and relaxed nanostructure to optimize ion diffusion paths, thus enhancing the performance of the device. In this paper, we designed an all-solid symmetrical supercapacitor with good performance based on polyaniline nanorod arrays in situ-grown on a graphite flake free-standing substrate. The specific capacitance, cycle stability, and energy density of the prepared supercapacitor device were 135 F/g, 75.4% retention after 1500 cycles, and the energy density is 18.75 W h/kg at a power density of 500 W/kg. The good performance of the supercapacitor device was obviously related to the oriented nanorod arrays of polyaniline/graphite flakes. In order to find the application of the prepared supercapacitor device, the tandem device consisting of three single supercapacitor devices connected in series had been used to drive small electronic equipment. The red light-emitting diode and chronograph could be easily driven by the 3-series supercapacitor devices. These results indicated that the prepared supercapacitor device based on the polyaniline/graphite flake electrode had potential applications in energy storage devices.
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Affiliation(s)
- Ben Liu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Xingying Zhang
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Du Tian
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Qi Li
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Min Zhong
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Shaoyun Chen
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Chenglong Hu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Hongbing Ji
- Fine
Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
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16
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Cao Y, Tang P, Qiu W, Zhao T. Preparation of Y-Doped La 2Ti 2O 7 Flexible Self-Supporting Films and Their Application in High-Performance Flexible All-Solid-State Supercapacitor Devices. ACS OMEGA 2020; 5:29722-29732. [PMID: 33251408 PMCID: PMC7689658 DOI: 10.1021/acsomega.0c03402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 11/02/2020] [Indexed: 05/03/2023]
Abstract
Flexible all-solid-state supercapacitors have drawn more attention owing to the rapid growth of wearable electronic equipments. Herein, we have succeeded in synthesizing a series of Y-doped lanthanum titanate flexible self-supporting films (LSF-x, 0.1 ≤ x ≤ 0.5) and investigating the change of microstructures, morphological characteristics, and lattice structures of these films affected by different Y-doping contents. To further determine the optimum Y-doping content, we have explored the electrochemical properties of working electrodes prepared by LSF-x (0.1 ≤ x ≤ 0.5) samples as the main active material. As the LSF-0.2 electrode has the best areal capacitance of 1.3 F·cm-2 at 2 mA·cm-2, we use the LSF-0.2 electrodes and PVA-Na2SO4 gel to fabricate a flexible all-solid-state supercapacitor device. This device has a high areal capacitance of 255.9 mF·cm-2 at a current density of 2 mA·cm-2 with a high cell voltage of 2.1 V, while the corresponding energy density is 156.8 μWh·cm-2 with a power density of 2.1 mW·cm-2. Moreover, it also shows a long cycling life and outstanding flexibility. Therefore, the LSF-0.2 sample can be used as an excellent energy-storage material for a wearable electronic device.
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Affiliation(s)
- Yi Cao
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510641, P. R. China
| | - Peiyuan Tang
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510641, P. R. China
| | - Wenfeng Qiu
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510641, P. R. China
| | - Tong Zhao
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510641, P. R. China
- Laboratory
of Advanced Polymeric Materials, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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17
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Pal R, Goyal SL, Rawal I. High-performance solid state supercapacitors based on intrinsically conducting polyaniline/MWCNTs composite electrodes. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02144-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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