1
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Yu M, Gao Y, Hong H, Wang T, Peng Z. A versatile, highly stretchable, and anti-freezing alginate/polyacrylamide/polyaniline multi-network hydrogel for flexible strain sensors and supercapacitors. Int J Biol Macromol 2025; 288:138740. [PMID: 39674460 DOI: 10.1016/j.ijbiomac.2024.138740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2024] [Revised: 11/26/2024] [Accepted: 12/11/2024] [Indexed: 12/16/2024]
Abstract
Conductive hydrogels have great potential as electrolyte materials for flexible strain sensors and supercapacitors. However, it remains a challenge to develop multifunctional hydrogels with excellent frost resistance, toughness, ionic conductivity, and electrochemical properties using simple methods. Herein, a "chemical-physical-ionic" cross-linked sodium alginate/polyacrylamide/polyaniline (SA/PAM/Ca2+/PANI) multi-network hydrogel was developed by in situ polymerization of aniline monomer within a Ca2+-crosslinked SA/PAM hydrogel network. The SA/PAM/Ca2+/PANI hydrogel shows excellent mechanical properties, (tensile strength of 0.577 MPa at a strain of 1991 %), high toughness (5.52 KJ·m-3), and high ionic conductivity (16.51 S·m-1 at 25 °C and 11.08 S·m-1 at -20 °C). The SA/PAM/Ca2+/PANI hydrogel-based strain sensor exhibited high sensitivity (gauge factor of 3.82 at 60-500 % strain), an extensive detection range (0-2000 %), and excellent frost resistance. The strain sensor can accurately monitor various human motions, as well as electrocardiograph (ECG) signals during both rest and exercise. The supercapacitor assembled with the SA/PAM/Ca2+/PANI hydrogel electrolyte exhibited a high surface capacitance (177.19 mF·cm-2 at 2 mA·cm-2), maximum energy density (21.93 Wh·kg-1), and high power density (3089 W·kg-1). Moreover, it maintained satisfactory electrochemical stability with 77.8 % capacitance retention after 4000 cycles. Therefore, the versatile SA/PAM/Ca2+/PANI hydrogel shows promising potential for applications in flexible wearable electronic devices.
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Affiliation(s)
- Mingjun Yu
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Yang Gao
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Hengchang Hong
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Tao Wang
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Zhiping Peng
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China.
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2
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Ren Y, Wang Q, Xu W, Yang M, Guo W, He S, Liu W. Alginate-based hydrogels mediated biomedical applications: A review. Int J Biol Macromol 2024; 279:135019. [PMID: 39182869 DOI: 10.1016/j.ijbiomac.2024.135019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
With the development in the field of biomaterials, research on alternative biocompatible materials has been initiated, and alginate in polysaccharides has become one of the research hotspots due to its advantages of biocompatibility, biodegradability and low cost. In recent years, with the further understanding of microscopic molecular structure and properties of alginate, various physicochemical methods of cross-linking strategies, as well as organic and inorganic materials, have led to the development of different properties of alginate hydrogels for greatly expanded applications. In view of the potential application prospects of alginate-based hydrogels, this paper reviews the properties and preparation of alginate-based hydrogels and their major achievements in delivery carrier, dressings, tissue engineering and other applications are also summarized. In addition, the combination of alginate-based hydrogel and new technology such as 3D printing are also involved, which will contribute to further research and exploration.
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Affiliation(s)
- Yazhen Ren
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Qiang Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Wanlin Xu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Mingcheng Yang
- Henan Academy of Sciences Isotope Institute Co., Ltd.7 Songshan South Road, Zhengzhou 450015, People's Republic of China
| | - Wenhui Guo
- Henan Academy of Sciences Isotope Institute Co., Ltd.7 Songshan South Road, Zhengzhou 450015, People's Republic of China
| | - Suqin He
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Wentao Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
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3
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Lou R, Niu T, Zhao F, He L, Yuan Y, Wei G, Lyu G. Renewable symmetric supercapacitors assembled with lignin nanoparticles-based thin film electrolyte and carbon aerogel electrodes. Int J Biol Macromol 2024; 277:134474. [PMID: 39102912 DOI: 10.1016/j.ijbiomac.2024.134474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 07/28/2024] [Accepted: 08/02/2024] [Indexed: 08/07/2024]
Abstract
Lignin as a natural biopolymer is becoming increasingly in demand due to its eco-friendly properties, while lignin-based electrolyte with high conductivity and reliable durability for applications in supercapacitors is still challenging. Herein, a facile method to prepare lignin nanoparticles (LNPs)-based solid electrolyte thin film (LF) was proposed through chemical cross-linking reaction. The fabricated LF exhibited a distinctive spongy porous structure with the ionic conductivity of 3.26 mS cm-1, demonstrating the exceptional flexibility and favorable mechanical properties. Moreover, the assembly of all-LNPs-based symmetric supercapacitor (SSC) devices was achieved using LF electrolyte and LCA electrodes for the first time, confirming the LF3 electrolyte superior to commercial cellulose separator in capacitive behaviour. This SSC device exhibited a specific capacitance of 122.7 F g-1 at 0.5 A g-1 and the maximum energy density of 17.04 W h kg-1. Furthermore, the incorporation of sodium alginate (SA) significantly enhanced the ionic conductivity of SA/LF3 electrolyte, and the resulting SSC device delivered a higher specific capacitance of 174.5 F g-1 at 0.5 A g-1 and the maximum energy and power densities of 24.24 W h kg-1 and 5023 W kg-1, respectively. This study proposes a promising approach for sustainable utilization of lignin in energy storage applications.
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Affiliation(s)
- Rui Lou
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.
| | - Taoyuan Niu
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Fengyu Zhao
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Long He
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Yuejin Yuan
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Guodong Wei
- College of Mechanical and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Gaojin Lyu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
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4
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Wu Z, Ma Y, Li S, Que L, Chen H, Hao F, Tao X, Xing H, Ye J, Qian D, Ling M, Zhu W, Liang C. Damage-Tolerant and Self-Repairing Web-Like Borate Type Binder Enable Stable Operation of Efficient Si-Based Anodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401345. [PMID: 38767495 DOI: 10.1002/smll.202401345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/08/2024] [Indexed: 05/22/2024]
Abstract
Novel binder designs are shown to be fruitful in improving the electrochemical performance of silicon (Si)-based anodes. However, issues with mechanical damage from dramatic volume change and poor lithium-ion (Li+) diffusion kinetics in Si-based materials still need to be addressed. Herein, an aqueous self-repairing borate-type binder (SBG) with a web-like architecture and high ionic conductivity is designed for Si and SiO electrodes. The 3D web-like architecture of the SBG binder enables uniform stress distribution, while its self-repairing ability promotes effective stress dissipation and mechanical damage repair, thereby enhancing the damage tolerance of the electrode. The tetracoordinate boron ions (- BO 4 - $ - {\mathrm{BO}}_4^ - $ ) in the SBG binder boosts the Li transportation kinetics of Si-based electrodes. Based on dynamic covalent and ionic conductive boronic ester bonds, the diverse requirements of the binder, including uniform stress distribution, self-repairing ability, and high ionic conductivity, can be met by simple components. Consequently, the proposed straightforward multifunction design strategy for binders based on dynamic boron chemistry provides valuable insights into fabricating high-performance Si-based anodes.
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Affiliation(s)
- Zhuoying Wu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yongqun Ma
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Siying Li
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Liming Que
- Zhejiang Fangyuan Test Group Co., Ltd, Hangzhou, 310063, China
| | - Hongbo Chen
- Zhejiang Fangyuan Test Group Co., Ltd, Hangzhou, 310063, China
| | - Fei Hao
- National Institute of Clean-and-Low-Carbon Energy, Beijing, 102211, China
| | - Xiaole Tao
- Hangzhou Zhijiang Silicone Chemicals Co., Ltd, Hangzhou, 311203, China
| | - Hao Xing
- Hangzhou Zhijiang Silicone Chemicals Co., Ltd, Hangzhou, 311203, China
| | - Jialin Ye
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Dan Qian
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Min Ling
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Weiwei Zhu
- Zhejiang Research Institute of Chemical Industry, No. 387 Tianmushan Road, Hangzhou, 310000, China
| | - Chengdu Liang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
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5
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Mitta SB, Kim J, Rana HH, Kokkiligadda S, Lim YT, Bhang SH, Park HS, Um SH. A biospecies-derived genomic DNA hybrid gel electrolyte for electrochemical energy storage. PNAS NEXUS 2024; 3:pgae213. [PMID: 38881843 PMCID: PMC11177232 DOI: 10.1093/pnasnexus/pgae213] [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: 01/25/2024] [Accepted: 05/21/2024] [Indexed: 06/18/2024]
Abstract
Intrinsic impediments, namely weak mechanical strength, low ionic conductivity, low electrochemical performance, and stability have largely inhibited beyond practical applications of hydrogels in electronic devices and remains as a significant challenge in the scientific world. Here, we report a biospecies-derived genomic DNA hybrid gel electrolyte with many synergistic effects, including robust mechanical properties (mechanical strength and elongation of 6.98 MPa and 997.42%, respectively) and ion migration channels, which consequently demonstrated high ionic conductivity (73.27 mS/cm) and superior electrochemical stability (1.64 V). Notably, when applied to a supercapacitor the hybrid gel-based devices exhibit a specific capacitance of 425 F/g. Furthermore, it maintained rapid charging/discharging with a capacitance retention rate of 93.8% after ∼200,000 cycles while exhibiting a maximum energy density of 35.07 Wh/kg and a maximum power density of 193.9 kW/kg. This represents the best value among the current supercapacitors and can be immediately applied to minicars, solar cells, and LED lightning. The widespread use of DNA gel electrolytes will revolutionize human efforts to industrialize high-performance green energy.
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Affiliation(s)
- Sekhar Babu Mitta
- Progeneer Inc., #1002, 12, Digital-ro 31-gil, Guro-gu, Seoul 08380, South Korea
| | - Jeonghun Kim
- Progeneer Inc., #1002, 12, Digital-ro 31-gil, Guro-gu, Seoul 08380, South Korea
| | - Harpalsinh H Rana
- Laboratory of Electrochemistry and Physicochemistry of Materials & Interfaces (LEPMI), CNRS/Grenoble-INP/UGA 1130, Rue de la Piscine, 38402 Saint-Martin d'Heres Cedex, France
| | - Samanth Kokkiligadda
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, South Korea
| | - Yong Taik Lim
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, South Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, South Korea
| | - Ho Seok Park
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, South Korea
| | - Soong Ho Um
- Progeneer Inc., #1002, 12, Digital-ro 31-gil, Guro-gu, Seoul 08380, South Korea
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, South Korea
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6
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Qiu C, He M, Xu SF, Ali AM, Shen L, Wang JS. Self-adhesive, conductive, and multifunctional hybrid hydrogel for flexible/wearable electronics based on triboelectric and piezoresistive sensor. Int J Biol Macromol 2024; 269:131825. [PMID: 38679271 DOI: 10.1016/j.ijbiomac.2024.131825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/12/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
Flexible electronics are highly developed nowadays in human-machine interfaces (HMI). However, challenges such as lack of flexibility, conductivity, and versatility always greatly hindered flexible electronics applications. In this work, a multifunctional hybrid hydrogel (H-hydrogel) was prepared by combining two kinds of 1D polymer chains (polyacrylamide and polydopamine) and two kinds of 2D nanosheets (Ti3C2Tx MXene and graphene oxide nanosheets) as quadruple crosslinkers. The introduced Ti3C2Tx MXene and graphene oxide nanosheets are bonded with the PAM and PDA polymer chains by hydrogen bonds. This unique crosslinking and stable structure endow the H-hydrogel with advantages such as good flexibility, electrical conductivity, self-adhesion, and mechanical robustness. The two kinds of nanosheets not only improved the mechanical strength and conductivity of the H-hydrogel, but also helped to form the double electric layers (DELs) between the nanosheets and the bulk-free water phase inside the H-hydrogel. When utilized as the electrode of a triboelectric nanogenerator (TENG), high electrical output performances were realized due to the dynamic balance of the DELs between the nanosheets and the H-hydrogel's inside water molecules. Moreover, flexible sensors, including triboelectric, and strain/pressure sensors, were achieved for human motion detection at low frequencies. This hydrogel is promising for HMI and e-skin.
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Affiliation(s)
- Chuang Qiu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Ming He
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Shi-Feng Xu
- College of Science, Shenyang Aerospace University, Shenyang, Liaoning 110136, China
| | - Aasi Mohammad Ali
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Lin Shen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China.
| | - Jia-Shi Wang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China.
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7
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Ding J, Yang Y, Poisson J, He Y, Zhang H, Zhang Y, Bao Y, Chen S, Chen YM, Zhang K. Recent Advances in Biopolymer-Based Hydrogel Electrolytes for Flexible Supercapacitors. ACS ENERGY LETTERS 2024; 9:1803-1825. [PMID: 38633997 PMCID: PMC11019642 DOI: 10.1021/acsenergylett.3c02567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/15/2024] [Accepted: 02/08/2024] [Indexed: 04/19/2024]
Abstract
Growing concern regarding the impact of fossil fuels has led to demands for the development of green and renewable materials for advanced electrochemical energy storage devices. Biopolymers with unique hierarchical structures and physicochemical properties, serving as an appealing platform for the advancement of sustainable energy, have found widespread application in the gel electrolytes of supercapacitors. In this Review, we outline the structure and characteristics of various biopolymers, discuss the proposed mechanisms and assess the evaluation metrics of gel electrolytes in supercapacitor devices, and further analyze the roles of biopolymer materials in this context. The state-of-the-art electrochemical performance of biopolymer-based hydrogel electrolytes for supercapacitors and their multiple functionalities are summarized, while underscoring the current technical challenges and potential solutions. This Review is intended to offer a thorough overview of recent developments in biopolymer-based hydrogel electrolytes, highlighting research concerning green and sustainable energy storage devices and potential avenues for further development.
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Affiliation(s)
- Jiansen Ding
- College
of Bioresources Chemical and Materials Engineering, National Demonstration
Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Yang Yang
- College
of Bioresources Chemical and Materials Engineering, National Demonstration
Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
- State
Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jade Poisson
- Sustainable
Materials and Chemistry, University of Göttingen, Büsgenweg 4, 37077 Göttingen, Germany
| | - Yuan He
- College
of Bioresources Chemical and Materials Engineering, National Demonstration
Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Hua Zhang
- College
of Chemistry and Chemical Engineering, Jiangxi
Normal University, Nanchang 330022, P. R. China
| | - Ying Zhang
- College
of Bioresources Chemical and Materials Engineering, National Demonstration
Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Yulan Bao
- College
of Chemistry and Chemical Engineering, Jiangxi
Normal University, Nanchang 330022, P. R. China
| | - Shuiliang Chen
- College
of Chemistry and Chemical Engineering, Jiangxi
Normal University, Nanchang 330022, P. R. China
| | - Yong Mei Chen
- College
of Bioresources Chemical and Materials Engineering, National Demonstration
Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Kai Zhang
- Sustainable
Materials and Chemistry, University of Göttingen, Büsgenweg 4, 37077 Göttingen, Germany
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Wang Y, Zhang W, Shan Y, Yu X, Chen K. Preparation of polyacrylamide/calcium alginate@Ti3C2Tx composite hydrogels with high adhesive performance for flexible supercapacitor electrolytes. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131312] [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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9
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Liang Y, Song Q, Chen Y, Hu C, Zhang S. Stretch-Induced Robust Intrinsic Antibacterial Thermoplastic Gelatin Organohydrogel for a Thermoenhanced Supercapacitor and Mono-gauge-factor Sensor. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20278-20293. [PMID: 37043180 DOI: 10.1021/acsami.3c02255] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Sustainable organohydrogel electronics have shown promise in resolving the electronic waste (e-waste) evoked by traditional chemical cross-linking hydrogels. Herein, thermoplastic-recycled gelatin/oxidized starch (OST)/glycerol/ZnCl2 organohydrogels (GOGZs) were fabricated by introducing the anionic polyelectrolyte OST and solvent exchange strategy to construct noncovalently cross-linking networks. Benefiting from the electrostatic interaction and hydrogen and coordination bonds, GOGZ possessed triple-supramolecular interactions and a continuous ion transport pathway, which resulted in excellent thermoplasticity and high ionic conductivities and mechanical and antibacterial properties. Because of the thermally induced phase transition of gelatin, GOGZ exhibited isotropic-ionic conductivity with a positive temperature coefficient and realized intrinsic affinity with the activated carbon electrode for fabricating a double-layer structure supercapacitor. These novel features significantly decreased the impedance (3.71 Ω) and facilitated the flexible supercapacitors to achieve thermoenhanced performance with 4.89 Wh kg-1 energy density and 49.2 F g-1 specific mass capacitance at 65 °C. Fantastically, the GOGZ-based stress sensor exhibited a monolinear gauge factor (R2 = 0.999) at its full-range strain (0 to 350%), and its sensitivity increased with the thermoplastic-recycled times. Consequently, this sustainable and temperature-sensitive sensor (-40 to 60 °C) could serve as health monitoring wearable devices with excellent reliability (R2 = 0.999) at tiny strain. Moreover, GOGZ could achieve efficient self-enhancement by stretch-induced alignment. The sustained weighted load, tensile strength, and elongation at break of the stretch-induced GOGZ were 6 kg/g, 2.37 MPa, and 300%, respectively. This self-enhanced feature indicated that GOGZ can be utilized as an artificial muscle. Eventually, GOGZ obtained high intrinsic antibiosis (Dinhibition circle > 25 mm) by a binding species (-COO-NH3+-) from COOH in OST and NH2 in gelatin, freezing resistance, and water retention. In summary, this study provided an effective strategy to fabricate thermoplastic-recycled organohydrogels for multifunctional sustainable electronics with novel performance.
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Affiliation(s)
- Yingpei Liang
- College of Mechanical and Automotive, South China University of Technology, Guangzhou 510640, China
- Guangdong Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China
| | - Qiaowei Song
- Packaging Engineering Institute, Jinan University, Zhuhai, Guangdong 519070, China
| | - Yukun Chen
- College of Mechanical and Automotive, South China University of Technology, Guangzhou 510640, China
| | - Changying Hu
- Packaging Engineering Institute, Jinan University, Zhuhai, Guangdong 519070, China
| | - Shuidong Zhang
- College of Mechanical and Automotive, South China University of Technology, Guangzhou 510640, China
- Guangdong Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou 510640, China
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10
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Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications. Polymers (Basel) 2023; 15:polym15030571. [PMID: 36771872 PMCID: PMC9918896 DOI: 10.3390/polym15030571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Hydrogel electrolytes for energy storage devices have made great progress, yet they present a major challenge in the assembly of flexible supercapacitors with high ionic conductivity and self-healing properties. Herein, a smart self-healing hydrogel electrolyte based on alginate/poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (alginate/PEDOT:PSS)(A/P:P) was prepared, wherein H2SO4 was employed as a polymeric initiator, as well as a source of ions. PEDOT:PSS is a semi-interpenetrating network (IPN) that has been used in recent studies to exhibit quick self-healing properties with the H₂SO₃ additive, which further improves its mechanical strength and self-healing performance. A moderate amount of PEDOT:PSS in the hydrogel (5 mL) was found to significantly improve the ionic conductivity compared to the pure hydrogel of alginate. Interestingly, the alginate/PEDOT:PSS composite hydrogel exhibited an excellent ability to self-heal and repair its original composition within 10 min of cutting. Furthermore, the graphite conductive substrate-based supercapacitor with the alginate/PEDOT:PSS hydrogel electrolyte provided a high specific capacitance of 356 F g-1 at 100 mV/s g-1. The results demonstrate that the A/P:P ratio with 5 mL PEDOT:PSS had a base sheet resistance of 0.9 Ω/square. This work provides a new strategy for designing flexible self-healing hydrogels for application in smart wearable electronics.
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Gao C, Gao Z, Wei Y, Luo N, Liu Y, Huo P. Flexible Wood Enhanced Poly(acrylic acid-co-acrylamide)/Quaternized Gelatin Hydrogel Electrolytes for High-Energy-Density Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2951-2960. [PMID: 36597008 DOI: 10.1021/acsami.2c18935] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hydrogels with good flexibility and strong hydrophilicity can be candidates for excellent flexible electrolyte materials. However, the poor structural stability, uncontrollable swelling, and lower potential window of hydrogel electrolytes need to be improved. This work combined quaternized gelatin with cross-linked poly(acrylic acid-co-acrylamide) to form a semi-interpenetrating network and gelatinized in situ in a flexible porous wood skeleton. The flexible wood (FW) skeleton enhances the hydrogel and limits the swelling of the hydrogel. In addition, quaternary ammonium groups and FW act synergistically to provide the composite hydrogel electrolyte with a high ionic conductivity of 5.57 × 10-2 S cm-1. The composite hydrogel electrolyte can enable the flexible supercapacitor to operate safely in a potential window of 0-2 V. The optimized supercapacitor has a high specific capacitance of 286.74 F g-1 and provides an outstanding energy density of 39.09 W h kg-1. The flexible supercapacitor shows a capacitance retention of up to 94.6% after 10,000 charge-discharge cycles, indicating dramatic cycling stability. Simultaneously, a capacitance retention of nearly 90% can be maintained by the flexible supercapacitor after 180° bends for 1000 times. A viable idea for developing high-performance hydrogel electrolytes and flexible supercapacitors is provided in this research.
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Affiliation(s)
- Chenxiang Gao
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
| | - Zunchang Gao
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
| | - Yanqing Wei
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
| | - Na Luo
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
| | - Yang Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
| | - Pengfei Huo
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin150040, China
- Material Science and Engineering College, Northeast Forestry University, Harbin150040, China
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