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Dakova I, Karadjova I. Ionic Liquid Modified Polymer Gel for Arsenic Speciation. Molecules 2024; 29:898. [PMID: 38398649 PMCID: PMC10892277 DOI: 10.3390/molecules29040898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
A new ionic liquid modified polymer gel containing methylimidazolium groups (poly(MIA)) is proposed as a sorbent for the separation and enrichment of trace inorganic and organic arsenic species in surface waters. The poly(MIA) was synthesized by chemical modification of polymeric precursor using post-polymerization modification of poly(glycidyl methacrylate-co-trimethylolpropane trimethacrylate). The composition, structure, morphology, and surface properties of the prepared particles were characterized using elemental analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, and nitrogen adsorption-desorption measurements. Optimization experiments showed that at pH 8, monomethylarsonic acid (MMAs), dimethylarsinic acid (DMAs), and As(V) were completely retained on the poly(MIA), while the sorption of As(III) was insignificant. The desorption experiments revealed that due to the weaker binding of organic arsenic species, selective elution with 1 mol/L acetic acid for MMAs + DMAs, followed by elution with 2 mol/L hydrochloric acid for As(V), ensured their quantitative separation. The adsorption kinetic and mechanism were defined. The analytical procedure for As(III), As(V), MMAs, and DMAs determination in surface waters was developed and validated through the analysis of certified reference material.
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Affiliation(s)
- Ivanka Dakova
- Faculty of Chemistry and Pharmacy, University of Sofia “St. Kliment Ohridski”, 1, James. Bourchier Blvd.1, 1164 Sofia, Bulgaria;
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Kuo TJ, Chao WT. Bidirectional Long Short-Term Memory Model of SoH Prediction for Gelled-Electrolyte Batteries under Charging Conditions. Gels 2023; 9:989. [PMID: 38131975 PMCID: PMC10742613 DOI: 10.3390/gels9120989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/09/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
The impact of different charging currents and surrounding temperatures has always been an important aspect of battery lifetime for various electric vehicles and energy storage equipment. This paper proposes a bidirectional long short-term memory model to quantify these impacts on the aging of gel batteries and calculate their state of health. The training data set of the bidirectional long short-term memory model is collected by charging and discharging the gel battery for 300 cycles in a temperature-controlled box and an automated charge and discharge device under different operating conditions. The testing set is generated by a small energy storage device equipped with small solar panels. Data for 220 cycles at different temperatures and charging currents were collected during the experiment. The results show that the mean absolute error (MAE) and root-mean-square error (RMSE) between the training set and testing set are 0.0133 and 0.0251, respectively. In addition to the proposed model providing high accuracy, the gel battery proved to be stable and long-lasting, which makes the gel battery an ideal energy storage solution for renewable energy.
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Affiliation(s)
- Ting-Jung Kuo
- Department of Applied Artificial Intelligence, Ming Chuan University, Taoyuan 33348, Taiwan;
| | - Wei-Ting Chao
- Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan
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Fan X, Liu S, Jia Z, Koh JJ, Yeo JCC, Wang CG, Surat'man NE, Loh XJ, Le Bideau J, He C, Li Z, Loh TP. Ionogels: recent advances in design, material properties and emerging biomedical applications. Chem Soc Rev 2023; 52:2497-2527. [PMID: 36928878 DOI: 10.1039/d2cs00652a] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Ionic liquid (IL)-based gels (ionogels) have received considerable attention due to their unique advantages in ionic conductivity and their biphasic liquid-solid phase property. In ionogels, the negligibly volatile ionic liquid is retained in the interconnected 3D pore structure. On the basis of these physical features as well as the chemical properties of well-chosen ILs, there is emerging interest in the anti-bacterial and biocompatibility aspects. In this review, the recent achievements of ionogels for biomedical applications are summarized and discussed. Following a brief introduction of the various types of ILs and their key physicochemical and biological properties, the design strategies and fabrication methods of ionogels are presented by means of different confining networks. These sophisticated ionogels with diverse functions, aimed at biomedical applications, are further classified into several active domains, including wearable strain sensors, therapeutic delivery systems, wound healing and biochemical detections. Finally, the challenges and possible strategies for the design of future ionogels by integrating materials science with a biological interface are proposed.
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Affiliation(s)
- Xiaotong Fan
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Siqi Liu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore.
| | - Zhenhua Jia
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, 450001, P. R. China. .,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - J Justin Koh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Jayven Chee Chuan Yeo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Chen-Gang Wang
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Nayli Erdeanna Surat'man
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Xian Jun Loh
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Jean Le Bideau
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Chaobin He
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Zibiao Li
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore. .,Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Teck-Peng Loh
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, 450001, P. R. China. .,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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Tadesse MG, Lübben JF. Review on Hydrogel-Based Flexible Supercapacitors for Wearable Applications. Gels 2023; 9:gels9020106. [PMID: 36826276 PMCID: PMC9956191 DOI: 10.3390/gels9020106] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023] Open
Abstract
Smart hydrogels with high electrical conductivity, which can be a real source of power while also collecting and storing the diverse sources of energy with ultrahigh stretchability, strong self-healability, low-temperature tolerance, and excellent mechanical properties, are great value for tailored wearable cloths. Considerable effort has been dedicated in both scientific and technological developments of electroconductive hydrogels for supercapacitor applications in the past few decades. The key to realize those functionalities depends on the processing of hydrogels with desirable electrochemical properties. The various hydrogel materials with such properties are now emerging and investigated by various scholars. The last decade has witnessed the development of high-performance supercapacitors using hydrogels. Here, in this review, the current status of different hydrogels for the production of flexible supercapacitors has been discussed. The electrochemical properties such as capacitance, energy density and cycling ability has been given attention. Diverse hydrogels, with their composites such as carbon-based hydrogels, cellulose-based hydrogels, conductive-polymer-based hydrogels and other hydrogels with excellent electromechanical properties are summarized. One could argue that hydrogels have played a central, starring role for the assembly of flexible supercapacitors for energy storage applications. This work stresses the importance of producing flexible supercapacitors for wearable clothing applications and the current challenges of hydrogel-based supercapacitors. The results of the review depicted that hydrogels are the next materials for the production of the flexible supercapacitor in a more sustainable way.
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Affiliation(s)
- Melkie Getnet Tadesse
- Sustainable Engineering (STE), Albstadt-Sigmaringen University, 72458 Albstadt, Germany
- Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, Bahir Dar 1037, Ethiopia
- Correspondence:
| | - Jörn Felix Lübben
- Sustainable Engineering (STE), Albstadt-Sigmaringen University, 72458 Albstadt, Germany
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Volkov VI, Yarmolenko OV, Chernyak AV, Slesarenko NA, Avilova IA, Baymuratova GR, Yudina AV. Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques. MEMBRANES 2022; 12:membranes12040416. [PMID: 35448386 PMCID: PMC9028971 DOI: 10.3390/membranes12040416] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 11/16/2022]
Abstract
This review is devoted to different types of novel polymer electrolytes for lithium power sources developed during the last decade. In the first part, the compositions and conductivity of various polymer electrolytes are considered. The second part contains NMR applications to the ion transport mechanism. Polymer electrolytes prevail over liquid electrolytes because of their exploitation safety and wider working temperature ranges. The gel electrolytes are mainly attractive. The systems based on polyethylene oxide, poly(vinylidene fluoride-co-hexafluoropropylene), poly(ethylene glycol) diacrylate, etc., modified by nanoparticle (TiO2, SiO2, etc.) additives and ionic liquids are considered in detail. NMR techniques such as high-resolution NMR, solid-state NMR, magic angle spinning (MAS) NMR, NMR relaxation, and pulsed-field gradient NMR applications are discussed. 1H, 7Li, and 19F NMR methods applied to polymer electrolytes are considered. Primary attention is given to the revelation of the ion transport mechanism. A nanochannel structure, compositions of ion complexes, and mobilities of cations and anions studied by NMR, quantum-chemical, and ionic conductivity methods are discussed.
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Affiliation(s)
- Vitaly I. Volkov
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
- Scientific Center in Chernogolovka RAS, 142432 Chernogolovka, Russia
- Correspondence: or
| | - Olga V. Yarmolenko
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
| | - Alexander V. Chernyak
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
- Scientific Center in Chernogolovka RAS, 142432 Chernogolovka, Russia
| | - Nikita A. Slesarenko
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
| | - Irina A. Avilova
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
| | - Guzaliya R. Baymuratova
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
| | - Alena V. Yudina
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russia; (O.V.Y.); (A.V.C.); (N.A.S.); (I.A.A.); (G.R.B.); (A.V.Y.)
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