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Muhammad DS, Aziz DM, Aziz SB. Zinc metal complexes synthesized by a green method as a new approach to alter the structural and optical characteristics of PVA: new field for polymer composite fabrication with controlled optical band gap. RSC Adv 2024; 14:26362-26387. [PMID: 39165793 PMCID: PMC11333999 DOI: 10.1039/d4ra04228j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Accepted: 08/05/2024] [Indexed: 08/22/2024] Open
Abstract
The current study employed a novel approach to design polymer composites with modified structural and declined optical band gaps. The results obtained in the present work for polymer composites can be considered an original method to make a new field for research based on green chemistry. Natural dyes extracted from green tea were mixed with hydrated zinc acetate (Zn(CH3COO)2·2H2O) to produce a metal complex. FTIR results comprehensively established the formation of the Zn-metal complex. The interaction among various components of PVA : Zn-metal complex composite was investigated using FTIR spectroscopy. The non-existence of anion bands of acetate in the Zn-metal complex spectrum confirms the formation of the Zn-metal complex. XRD analysis reveals that the Zn-metal complex improves the amorphous phase of the PVA-based composites. The absorption edge of the doped films shifted towards the lower photon energies. Optical dielectric properties were used to determine N/m*, ε ∞, τ, μ opt, ω p, and ρ opt; the W-D model was used to calculate E d, E o and n o parameters. The optical dielectric loss parameter was used to determine the optical band gap while the Tauc model was employed to identify various types of electron transitions. The optical energy band gap was 6.05 eV for clean PVA while it decreased to 1 eV for PVA inserted with the Zn-metal complex. The increase in Urbach energy from 0.26 eV to 0.45 eV is an evidence of the boost of amorphous phases in PVA : Zn-metal complex composites. The nonlinear refractive index and the first-order and second-order nonlinear optical susceptibilities were determined. The value of E o obtained from the W-D model closely matches the optical energy band gap obtained from the Tauc model, which indicates the precision of the analysis in the present study. The increase in SELF and VELF in the composite films establishes that new energy states assigned to the added Zn-metal complex amplify the probability of light-matter interaction.
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Affiliation(s)
- Dana S Muhammad
- Department of Physics, College of Education, University of Sulaimani Old Campus, Kurdistan Regional Government Sulaimani 46001 Iraq
| | - Dara M Aziz
- Department of Chemistry, College of Science, University of Raparin Kurdistan Region Ranya 46012 Iraq
| | - Shujahadeen B Aziz
- Research and Development Center, University of Sulaimani Qlyasan Street, Kurdistan Regional Government Sulaymaniyah 46001 Iraq
- Department of Physics, College of Science, Charmo University Chamchamal 46023 Sulaymaniyah Iraq
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2
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Jing C, Dai K, Liu D, Wang W, Chen L, Zhang C, Wei W. Crosslinked solubilizer enables nitrate-enriched carbonate polymer electrolytes for stable, high-voltage lithium metal batteries. Sci Bull (Beijing) 2024; 69:209-217. [PMID: 38007330 DOI: 10.1016/j.scib.2023.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/11/2023] [Accepted: 11/09/2023] [Indexed: 11/27/2023]
Abstract
High-voltage lithium metal batteries (LMBs) have been considered promising next-generation high-energy-density batteries. However, commercial carbonate electrolytes can scarcely be employed in LMBs owing to their poor compatibility with metallic lithium. N,N-dimethylacrylamide (DMAA)-a crosslinkable solubilizer with a high Gutmann donor number-is employed to facilitate the dissolution of insoluble lithium nitrate (LiNO3) in carbonate-based electrolytes and to form gel polymer electrolytes (GPEs) through in situ polymerization. The Li+ solvation structure of the GPEs is regulated using LiNO3 and DMAA, which suppresses the decomposition of LiPF6 and facilitates the formation of an inorganic-rich solid electrolyte interface. Consequently, the Coulombic efficiency (CE) of the Li||Cu cell assembled with a GPE increases to 98.5% at room temperature, and the high-voltage Li||NCM622 cell achieves a capacity retention of 80.1% with a high CE of 99.5% after 400 cycles. The bifunctional polymer electrolytes are anticipated to pave the way for next-generation high-voltage LMBs.
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Affiliation(s)
- Chuyang Jing
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Kuan Dai
- College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Dong Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Wenran Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Libao Chen
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Chunxiao Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.
| | - Weifeng Wei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.
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Zhanadilov O, Kim HJ, Lai HJ, Jiang JC, Konarov A, Mentbayeva A, Bakenov Z, Sohn KS, Kaghazchi P, Myung ST. Exploiting High-Voltage Stability of Dual-Ion Aqueous Electrolyte Reinforced by Incorporation of Fiberglass into Zwitterionic Hydrogel Electrolyte. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302973. [PMID: 37377256 DOI: 10.1002/smll.202302973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/18/2023] [Indexed: 06/29/2023]
Abstract
Rechargeable zinc aqueous batteries are key alternatives for replacing toxic, flammable, and expensive lithium-ion batteries in grid energy storage systems. However, these systems possess critical weaknesses, including the short electrochemical stability window of water and intrinsic fast zinc dendrite growth. Hydrogel electrolytes provide a possible solution, especially cross-linked zwitterionic polymers that possess strong water retention ability and high ionic conductivity. Herein, an in situ prepared fiberglass-incorporated dual-ion zwitterionic hydrogel electrolyte with an ionic conductivity of 24.32 mS cm-1 , electrochemical stability window up to 2.56 V, and high thermal stability is presented. By incorporating this hydrogel electrolyte of zinc and lithium triflate salts, a zinc//LiMn0.6 Fe0.4 PO4 pouch cell delivers a reversible capacity of 130 mAh g-1 in the range of 1.0-2.2 V at 0.1C, and the test at 2C provides an initial capacity of 82.4 mAh g-1 with 71.8% capacity retention after 1000 cycles with a coulombic efficiency of 97%. Additionally, the pouch cell is fire resistant and remains safe after cutting and piercing.
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Affiliation(s)
- Orynbay Zhanadilov
- Hybrid Materials Research Center, Department of Nanotechnology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Seoul, 05006, South Korea
| | - Hee Jae Kim
- Hybrid Materials Research Center, Department of Nanotechnology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Seoul, 05006, South Korea
| | - Hou-Jen Lai
- Computational and Theoretical Chemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Jyh-Chiang Jiang
- Computational and Theoretical Chemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Aishuak Konarov
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan
| | - Almagul Mentbayeva
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan
| | - Zhumabay Bakenov
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan
| | - Kee-Sun Sohn
- Hybrid Materials Research Center, Department of Nanotechnology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Seoul, 05006, South Korea
| | - Payam Kaghazchi
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), 52425, Jülich, Germany
| | - Seung-Taek Myung
- Hybrid Materials Research Center, Department of Nanotechnology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Seoul, 05006, South Korea
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Kamilya T, Park J. Highly Sensitive Self-Powered Biomedical Applications Using Triboelectric Nanogenerator. MICROMACHINES 2022; 13:2065. [PMID: 36557367 PMCID: PMC9781368 DOI: 10.3390/mi13122065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 05/28/2023]
Abstract
The triboelectric nanogenerator (TENG) is a promising research topic for the conversion of mechanical to electrical energy and its application in different fields. Among the various applications, self-powered bio-medical sensing application has become popular. The selection of a wide variety of materials and the simple design of devices has made it attractive for the applications of real-time self-powered healthcare sensing systems. Human activity is the source of mechanical energy which gets converted to electrical energy by TENG fitted to different body parts for the powering up of the biomedical sensing and detection systems. Among the various techniques, wearable sensing systems developed by TENG have shown their merit in the application of healthcare sensing and detection systems. Some key studies on wearable self-powered biomedical sensing systems based on TENG which have been carried out in the last seven years are summarized here. Furthermore, the key features responsible for the highly sensitive output of the self-powered sensors have been briefed. On the other hand, the challenges that need to be addressed for the commercialization of TENG-based biomedical sensors have been raised in order to develop versatile sensitive sensors, user-friendly devices, and to ensure the stability of the device over changing environments.
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Affiliation(s)
| | - Jinhyoung Park
- School of Mechatronics Engineering, Korea University of Technology and Education, Cheonan-si 1600, Republic of Korea
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Fei H, Han J, Passerini S, Varzi A. Hybrid Organic/Inorganic Interphase for Stabilizing a Zinc Metal Anode in a Mild Aqueous Electrolyte. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48675-48681. [PMID: 36255351 DOI: 10.1021/acsami.2c13645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Aqueous rechargeable zinc-based batteries have recently gained tremendous attention because of their low cost and high safety. However, the issues associated with the zinc metal anode, including corrosion, H2 evolution, and dendrite growth, hinder their practical applications. Herein, we design a hybrid organic/inorganic interphase composed of poly(vinylidene fluoride-co-hexafluoropropylene), silica, and zinc triflate to stabilize the zinc metal anode in a mild aqueous electrolyte. It is proven that the artificial interphase reduces corrosion of the Zn metal in the ZnSO4 electrolyte and suppresses dendrite growth by regulating Zn2+ deposition. Therefore, the lifespan of symmetrical cells with coated Zn could be enhanced to over 960 h with a stripping/plating capacity of 0.5 mAh cm-2. In addition, zinc-ion batteries including a sodium vanadate cathode and a coated Zn anode could achieve 3000 cycles with nearly no capacity fading at 5 A g-1.
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Affiliation(s)
- Huifang Fei
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021 Karlsruhe, Germany
| | - Jin Han
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021 Karlsruhe, Germany
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021 Karlsruhe, Germany
| | - Alberto Varzi
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021 Karlsruhe, Germany
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Development of electrolytes for rechargeable zinc-air batteries: current progress, challenges, and future outlooks. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05156-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
AbstractThis review presents the current developments of various electrolyte systems for secondary zinc air batteries (SZABs). The challenges and advancements in aqueous electrolytes (e.g., alkaline, acidic and neutral) and non-aqueous electrolytes (e.g., solid polymer electrolyte, ionic liquids, gel polymer electrolyte, and deep eutectic solvents) development have been reviewed. Moreover, chemical and physical characteristics of electrolytes such as power density, capacity, rate performance, cyclic ability, and safety that play a vital role in recital of the SZABs have been reviewed. Finally, the challenges and limitations that must be investigated and possible future research areas of SZABs electrolytes are discussed.
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Vorvila ML, Sideri IK, Stergiou A, Kafetzi M, Pispas S, Arenal R, Tagmatarchis N. Graphene featuring imidazolium rings and electrostatically immobilized polyacrylate chains as metal-free electrocatalyst for selective oxygen reduction to hydrogen peroxide. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wu K, Cui J, Yi J, Liu X, Ning F, Liu Y, Zhang J. Biodegradable Gel Electrolyte Suppressing Water-Induced Issues for Long-Life Zinc Metal Anodes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34612-34619. [PMID: 35867002 DOI: 10.1021/acsami.2c05887] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Owing to the inherent properties of aqueous electrolytes, aqueous zinc-ion batteries are considered to be a promising energy storage system. Unfortunately, the water-induced issues, such as hydrogen evolution and corrosion reaction, inevitably occur on the Zn anode surface during cycling, which leads to poor electrochemical performance. The gel polymer electrolyte would reduce the parasitic reactions associated with water. However, the nondegradable polymer is harmful to the environment. Herein, with the aim to alleviate the serious issues derived from water and environmental problems, a biodegradable gum arabic has been proposed to serve as a hydrogel electrolyte for aqueous zinc-ion batteries. The electrochemical activity of water could be reduced by the hydrogen-bond network between the gum arabic and water. Thus, the corrosion and hydrogen evolution reaction (HER) can be restrained by employing the prepared gel electrolyte. Evidenced by the online mass spectrometry, it is found that the less produced H2 is detected in the biodegradable gel electrolyte-based Zn||Zn symmetric cell during the processes of Zn plating/stripping, showing the inhibited HER. Moreover, the by-product on the Zn anode is barely observed during cycling when using the obtained gel electrolyte. Uniform zinc-ion distribution can be achieved to mitigate Zn dendrite growth in the gel electrolyte. Therefore, the Zn||Zn symmetric cell based on the gel electrolyte exhibits a long lifespan of more than 1300 h, which is longer than that in the aqueous electrolyte. Moreover, the Zn||LiFePO4 hybrid ion battery based on the gel electrolyte shows improved capacity retention by suppressing the reactions related to water.
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Affiliation(s)
- Kai Wu
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jin Cui
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jin Yi
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Xiaoyu Liu
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Fanghua Ning
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Yuyu Liu
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jiujun Zhang
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, China
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Ali NM, Kareem AA, Polu AR. Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02417-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Shao J, Liu X, Ji M. Effect of interfacial properties of filled carbon black nanoparticles on the conductivity of nanocomposite. J Appl Polym Sci 2022. [DOI: 10.1002/app.51604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jiang Shao
- Department of Chemical Engineering Sichuan University Chengdu China
| | - Xue Liu
- Zhengzhou Institute of Emerging Industrial Technology Zhengzhou China
| | - Mingbo Ji
- College of Nuclear Science and Technology Harbin Engineering University Yantai China
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Bósquez-Cáceres MF, Hidalgo-Bonilla S, Morera Córdova V, Michell RM, Tafur JP. Nanocomposite Polymer Electrolytes for Zinc and Magnesium Batteries: From Synthetic to Biopolymers. Polymers (Basel) 2021; 13:4284. [PMID: 34960837 PMCID: PMC8706018 DOI: 10.3390/polym13244284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 11/25/2021] [Accepted: 11/28/2021] [Indexed: 12/27/2022] Open
Abstract
The diversification of current forms of energy storage and the reduction of fossil fuel consumption are issues of high importance for reducing environmental pollution. Zinc and magnesium are multivalent ions suitable for the development of environmentally friendly rechargeable batteries. Nanocomposite polymer electrolytes (NCPEs) are currently being researched as part of electrochemical devices because of the advantages of dispersed fillers. This article aims to review and compile the trends of different types of the latest NCPEs. It briefly summarizes the desirable properties the electrolytes should possess to be considered for later uses. The first section is devoted to NCPEs composed of poly(vinylidene Fluoride-co-Hexafluoropropylene). The second section centers its attention on discussing the electrolytes composed of poly(ethylene oxide). The third section reviews the studies of NCPEs based on different synthetic polymers. The fourth section discusses the results of electrolytes based on biopolymers. The addition of nanofillers improves both the mechanical performance and the ionic conductivity; key points to be explored in the production of batteries. These results set an essential path for upcoming studies in the field. These attempts need to be further developed to get practical applications for industry in large-scale polymer-based electrolyte batteries.
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Affiliation(s)
| | | | | | | | - Juan P. Tafur
- School of Chemical Sciences & Engineering, Yachay Tech University, Urcuquí 100119, Ecuador; (M.F.B.-C.); (S.H.-B.); (V.M.C.); (R.M.M.)
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Wu D, Ji C, Mi H, Guo F, Cui H, Qiu P, Yang N. A safe and robust dual-network hydrogel electrolyte coupled with multi-heteroatom doped carbon nanosheets for flexible quasi-solid-state zinc ion hybrid supercapacitors. NANOSCALE 2021; 13:15869-15881. [PMID: 34519738 DOI: 10.1039/d1nr02826j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Aqueous zinc ion hybrid supercapacitors (ZHSCs) are receiving increasing research interest because of their superiority in safety, economy, and high water compatibility. However, the corrosion problems coupled with dendrite growth in an aqueous system severely limit the potential use of zinc storage systems with long service life. To delicately address the above obstacles, a κ-carrageenan/polyacrylamide/Zn(CF3SO3)2 hydrogel electrolyte (denoted as κ-CG/PAAm/Zn(CF3SO3)2) with an ionically and covalently double crosslinked network was constructed, which possesses a high ionic conductivity of 2.3 S m-1, a high tensile strength of 34.6 kPa with a superior stretchability of 599.0%, and an excellent compression strength of 75.3 kPa at 75.0% strain. The double crosslinked polymer chains realize uniform zinc deposition. In addition, the intrinsic hydrophilic groups in the κ-carrageenan (κ-CG) and polyacrylamide (PAAm) chains can well immobilize water molecules, which favor electrolyte ion transport. Moreover, nitrogen and sulphur co-doped carbon nanosheets (denoted as ACNS) characterized by the rich amorphous phase associated with lots of short-range ordered microcrystalline regions were prepared as the cathode material in this work, which exhibits a high capacity of 116.4 mA h g-1 coupled with superior rate performance and long-term cycling stability (108.0% capacity retention over 10 000 cycles) for an aqueous Zn//ACNS ZHSC. A quasi-solid-state ZHSC based on ACNS and κ-CG/PAAm/Zn(CF3SO3)2 exhibits a specific capacity of 100.5 mA h g-1 at 0.25 A g-1 with a high capacity retention of 50.8% at 20 A g-1. The as-fabricated ZHSC also shows excellent cycling stability of 10 000 cycles as well as a superior energy density of 86.5 W h kg-1 at a power density of 215.3 W kg-1. The ZHSC can also be used as a reliable source to drive various kinds of electronics (e.g., mobile phones and electronic timers), which uncovers a feasible strategy for engineering the high-performance hydrogel electrolytes and cathode materials for ZHSC applications.
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Affiliation(s)
- Dandan Wu
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Chenchen Ji
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Hongyu Mi
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Fengjiao Guo
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Haonan Cui
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Pengtao Qiu
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, China
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Paul-Bonatz Str. 9-11, Siegen 57076, Germany.
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Synthesis and Characterization of Antibacterial Carbopol/ZnO Hybrid Nanoparticles Gel. CRYSTALS 2021. [DOI: 10.3390/cryst11091092] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This study recommends Carbopol/zinc oxide (ZnO) hybrid nanoparticles gel as an efficient antibacterial agent against different bacterial species. To this end, ZnO nanoparticles were synthesized using chemical precipitation derived from a zinc acetate solution with ammonium hydroxide as its precipitating agent under the effect of ultrasonic radiation. The synthesized ZnO nanoparticles were stabilized simultaneously in a freshly prepared Carbopol gel at a pH of 7. The chemical composition, phase identification, particle size and shape, surface charge, pore size distribution, and the BET surface area of the ZnO nanoparticles, as well as the Carbopol/ZnO hybrid Nanoparticles gel, were by XRD, SEM, TEM, AFM, DLS, Zeta potential and BET instruments. The results revealed that the synthesized ZnO nanoparticles were well-dispersed in the Carbopol gel network, and have a wurtzite-crystalline phase of spherical shape. Moreover, the Carbopol/ZnO hybrid nanoparticles gel exhibited a particle size distribution between ~9 and ~93 nm, and a surface area of 54.26 m2/g. The synthesized Carbopol/ZnO hybrid nanoparticles gel underwent an antibacterial sensitivity test against gram-negative K. pneumonia (ATCC 13883), Bacillus subtilis (ATCC 6633), and gram-positive Staphylococcus aureus (ATCC 6538) bacterial strains, and were compared with ampicillin as a reference antibiotic agent. The obtained results demonstrated that the synthesized Carbopol/ZnO hybrid nanoparticles gel exhibited a compatible bioactivity against the different strains of bacteria.
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Addressing Manufacturability and Processability in Polymer Gel Electrolytes for Li/Na Batteries. Polymers (Basel) 2021; 13:polym13132093. [PMID: 34202900 PMCID: PMC8271759 DOI: 10.3390/polym13132093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/08/2021] [Accepted: 06/18/2021] [Indexed: 12/13/2022] Open
Abstract
Gel electrolytes are prepared with Ultra High Molecular Weight (UHMW) polyethylene oxide (PEO) in a concentration ranging from 5 to 30 wt.% and Li- and Na-doped 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (PYR14-TFSI) by a simple procedure consisting of dissolving PEO by melting it directly in the liquid electrolyte while stirring the blend. This procedure is fast, reproducible and needs no auxiliary solvents, which makes it sustainable and potentially easy to scale up for mass production. The viability of the up-scaling by extrusion has been studied. Extrusion has been chosen because it is a processing method commonly employed in the plastics industry. The structure and morphology of the gel electrolytes prepared by both methods have been studied by DSC and FTIR, showing small differences among the two methods. Composite gels incorporation high concentrations of surface modified sepiolite fibers have been successfully prepared by extrusion. The rheological behavior and ionic conductivity of the gels have been characterized, and very similar performance of the extruded and manually mixed gels is detected. Ionic conductivity of all the gels, including the composites, are at or over 0.4 mS cm-1 at 25 °C, being at the same time thermoreversible and self-healing gels, tough, sticky, transparent and stretchable. This combination of properties, together with the viability of their industrial up-scaling, makes these gel electrolyte families very attractive for their application in energy storage devices.
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15
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Printed Textile-Based Ag 2O-Zn Battery for Body Conformal Wearable Sensors. SENSORS 2021; 21:s21062178. [PMID: 33804688 PMCID: PMC8003682 DOI: 10.3390/s21062178] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/18/2021] [Accepted: 03/18/2021] [Indexed: 11/17/2022]
Abstract
Wearable electronics are playing an important role in the health care industry. Wearable sensors are either directly attached to the body surface or embedded into worn garments. Textile-based batteries can help towards development of body conformal wearable sensors. In this letter, we demonstrate a 2D planar textile-based primary Ag2O-Zn battery fabricated using the stencil printing method. A synthetic polyester woven fabric is used as the textile substrate and polyethylene oxide material is used as the separator. The demonstrated battery achieves an areal capacity of 0.6 mAh/cm2 with an active electrode area of 0.5 cm × 1 cm.
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