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Qin G, Liu Y, Zhang W, He W, Su X, Lv Q, Yu X, Chen Q, Yang J. Integrated supercapacitor with self-healing, arbitrary deformability and anti-freezing based on gradient interface structure from electrode to electrolyte. J Colloid Interface Sci 2023; 635:427-440. [PMID: 36599241 DOI: 10.1016/j.jcis.2022.12.164] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/18/2022] [Accepted: 12/30/2022] [Indexed: 01/02/2023]
Abstract
Flexible supercapacitors have attracted more and more attention because of their promising applications in wearable electronics, however, it is still important to harmonize their mechanical and electrochemical properties for practical applications. In the present work, a seamless transition between polyaniline (PANI) electrode and NH4VO3_FeSO4 dual redox-mediated gel polymer electrolyte (GPE) is presented through in situ formation of gradient interface structure. Multiple physical interactions make the GPE excellent mechanical and self-healing properties. Meanwhile, double role functions of Fe2+ ions greatly relieve the traditional contradiction between mechanical and electrochemical properties of GPE. Moreover, benefiting from the structure and reversible redox reactions of VO3- and Fe2+, the integrated supercapacitor delivers an exceptional specific capacitance of 441.8 mF/cm2, a high energy density of 63.1 μWh/cm2, remarkable cyclic stability. Simultaneously, the gradient structure from PANI electrode to GPE greatly improves the electrode/electrolyte interface compatibility and ion transport, which endows the supercapacitor with stable electrochemical performance. Furthermore, the supercapacitor well-maintains the specific capacitance even at -20 °C with over 89.19 % retention after 6 cutting/healing cycles. The gradient interface structure design will promote the development of high-performance supercapacitor.
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Affiliation(s)
- Gang Qin
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yongcun Liu
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Wenye Zhang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Wenjie He
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Xiaoxiang Su
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Qianqian Lv
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Xiang Yu
- College of Materials Engineering, Henan University of Engineering, Zhengzhou 454000, China.
| | - Qiang Chen
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 352001, China.
| | - Jia Yang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
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Xin Q, Chu X, Wang L, Yan W, Zang Y, Lin J. High-performance integrated supercapacitor based on glycerol-Mo hydrogel. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Lu L, Huang Z, Li X, Li X, Cui B, Yuan C, Guo L, Liu P, Dai Q. A high-conductive, anti-freezing, antibacterial and anti-swelling starch-based physical hydrogel for multifunctional flexible wearable sensors. Int J Biol Macromol 2022; 213:791-803. [PMID: 35679959 DOI: 10.1016/j.ijbiomac.2022.06.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/19/2022] [Accepted: 06/04/2022] [Indexed: 11/26/2022]
Abstract
Flexible wearable sensors based on conductive hydrogels are attracting increasing interest. To meet the urgent demands of sustainability and eco-friendliness, biopolymer-based physically crosslinked hydrogels have drawn great attention. Starch has a great potential due to its renewability, biocompatibility, nontoxicity and low cost. However, poor mechanical property, low conductivity and lack of versatility are seriously limiting the applications of starch-based hydrogels in wearable sensors. Moreover, the development of starch hydrogel-based wearable sensors in harsh conditions remains a challenge. Herein, multifunctional and physical crosslinking hydrogels were developed by introducing ionic liquid (1-ethyl-3-methyl imidazolium acetate) and metal salt (AlCl3) into starch/polyvinyl alcohol double-network structure. The hydrogel exhibited excellent stretchability (567%), tensile strength (0.53 MPa), high conductivity (2.75 S·m-1), good anti-freezing, antibacterial and anti-swelling properties. A wearable sensor assembled from the starch-based hydrogel exhibited a wide working range, high sensitivity (gauge factor: 5.93) and excellent reversibility. Due to the versatility, the sensor effectively detected human motion in normal and underwater environment, and possessed a sensitive pressure and thermal response. Overall, the present work provided a promising route to develop multifunctional and "green" biopolymer-based hydrogels for wearable sensors in human health and sporting applications.
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Affiliation(s)
- Lu Lu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China.
| | - Zunxiang Huang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Xiaonan Li
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Xueting Li
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China.
| | - Chao Yuan
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Li Guo
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Pengfei Liu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Qilin Dai
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS 39217, United States
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Wang Q, Peng Y, Ji X, Hadi MK, Zhang S, Tang J, Ran F. Conductive 3D networks in a 2D layer for high performance ultrafiltration membrane with high flux-retention and robust cyclic stability. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Yu M, Ji X, Ran F. Chemically building interpenetrating polymeric networks of Bi-crosslinked hydrogel macromolecules for membrane supercapacitors. Carbohydr Polym 2021; 255:117346. [DOI: 10.1016/j.carbpol.2020.117346] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/12/2020] [Accepted: 10/28/2020] [Indexed: 12/13/2022]
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