Polymer electrolytes
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The present study reports the synthesis, characterization, and application as energy devices of an ionic liquid blended polymer electrolyte film in which the host polymer polyvinyl alcohol (PVA) is mixed with low viscosity ionic liquid (IL) 1-ethyl-3-methylimidazolium thiocyanate.
7p visergeyne 18-06-2024 0 0 Download
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In the present study, we have made an attempt to prepare complexed PVA-PVP-KNO3-BaTiO3 blend composite polymer electrolyte membranes composed of potassium nitrate (KNO3) as salt and BaTiO3 of various concentrations as filler and studied their properties. The advantages of addition the fillers are the increase in ionic conductivity at room temperatures and the improvement of the stability at the interface with electrodes.
12p dianmotminh02 03-05-2024 6 1 Download
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Ebok "Lithium-ion batteries: Science and technologies" contains an in-depth review of electrode materials, electrolytes and additives for LIB, as well as indicators of the future directions for continued maturation of the LIB. In developing electrochemical cells, one must keep in mind that the real goal is to package and control all the materials and components (cathode and anode active materials, electrolytes, separators, current collectors etc.) in a limited volume to enable maximum energy storage without creating any safety problems.
460p manmanthanhla0201 26-02-2024 2 1 Download
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Ebook "Handbook of reference electrodes" includes all kinds of applications such as aqueous and non-aqueous solutions, ionic liquids, glass melts, solid electrolyte systems, and membrane electrodes. Advanced technologies such as miniaturized, conducting-polymer-based, screen-printed or disposable reference electrodes are also covered. Essential know-how is clearly presented and illustrated with almost 200 figures.
351p nhanphanguyet 28-01-2024 7 2 Download
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Polyvinyl alcohol (PVA) polymer mixed with different weight ratios of 1-ethyl-3- methyltricynomethanide (EMIm-TCM) ranging from 0 to 30 wt% were used to develop solid polymer electrolytes (SPEs). The structural, electrical, and electrochemical properties of the SPEs films were extensively studied.
6p viberbers 09-08-2023 5 4 Download
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The main aim of the present work is to optimize highly conducting solid polymer electrolytes by doping of ionic liquid in a Poly-ethylene oxide (PEO) polymer complexed Sodium Iodide (NaI) matrix. Solution casting method has been used to synthezis solid polymer electrolytes.
8p viberbers 09-08-2023 8 4 Download
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This review article provides a deep insight into the ion conduction mechanism in polymer electrolytes (PEs). The concepts of different categories of polymer electrolytes are discussed. The significance of the existence of functional (polar) groups on the backbone of host polymers, which are used in polymer electrolytes, is well explained.
17p viberbers 09-08-2023 8 2 Download
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In this study, a new copolymer, which is a combination of two chemical structure (9,10-di(furan-2-yl)anthracene and 3,4-ethylenedioxythiophene was synthesized via electrochemical synthesis methods in the electrolyte medium of 0.1 M TBAPF6 / ACN solution. PEDOT homopolymer was also electrosynthesized for comparator experiments of the polymer formations in the same medium. The characterizations of polymers were achieved with general optical and electrochemical characterization techniques.
10p lyhuyenthu 31-01-2023 7 2 Download
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A new electrochromic copolymer based on 4,7-di(thiophen-2-yl)benzo[c] [1,2,5]thiadiazole and 3,4-ethylenedioxythiophene was successfully obtained via the electrochemical polymerization method in the medium of electrolyte solution, which consists of 0.1 M tetrabutylammonium hexafluorophosphate and dichloromethane. Then, electrochemical and spectroelectrochemical characterizations of electrochemically synthesized polymers and copolymers were performed.
9p lyhuyenthu 31-01-2023 7 2 Download
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Molecular dynamics modeling was applied to predict chitosan molecule conformations, the contour length, the gyration radius, the effective cross-section and the density in electrolyte solutions. Using various experimental techniques the diffusion coefficient, the hydrodynamic diameter and the electrophoretic mobility of molecules were determined.
13p viginny 30-12-2022 9 2 Download
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The increasing amount of electric vehicles on our streets as well as the need to store surplus energy from renewable sources such as wind, solar and tidal parks, has brought small and large scale batteries into the focus of academic and industrial research.
16p viginny 30-12-2022 10 3 Download
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Research on oligosaccharides, including the complicated product mixtures generated by lytic polysaccharide monooxygenases (LPMOs), is growing at a rapid pace. LPMOs are gaining major interest, and the ability to efficiently and accurately separate and quantify their native and oxidized products chromatographically is essential in furthering our understanding of these oxidative enzymes.
11p viginny 23-12-2022 5 3 Download
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An attempt to prepare a solid polymer electrolyte from jackfruit gum was made. Jackfruit gum (JG) was purified and subjected to epoxidation process. Lithium perchlorate (LiClO4) was dispersed in JG and epoxidized jackfruit gum (EJG). The structural characterizations were made through NMR spectroscopy and gel permeation chromatography.
4p vimelindagates 18-07-2022 6 3 Download
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The kinetics of the iron electrodeposition reaction from a plating bath containing trivalent iron ions is investigated in the present work. The electrochemical reaction is stated to proceed via the formation of relatively stable intermediates: Fe(II) ions. Only a part of the total amount of Fe(II) ions formed at the first stage of Fe(III) discharge is reduced further, producing metal iron. The effect of polyhexamethyleneguanidine hydrochloride (with an average molecular weight of 1000) on the iron deposition is ascertained.
10p langthannam 29-12-2021 7 0 Download
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This observation indicates: i) The formation of the lamellar grains; ii) The rapid changes in characteristic sizes of the lamellar grains compared with the lamellar stacks; and iii) The newly generated phases consisting of only the graft materials. These findings explain why the lamellar grains and the graft chains play an important role in the higher proton conductivity and compatible tensile strengths of the membranes, compared with Nafion, at the immersed and severe operating conditions.
9p meyerowitz 25-12-2021 8 0 Download
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The supercapacitance performance of the PGNC nanocomposite is reported for different electrolytes, different stoichiometric ratios of Ni and Co in NixCo1- xFe2O4 and on different substrates.
11p meyerowitz 25-12-2021 9 0 Download
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In this paper, we report on the synthesis of solid polymer electrolytes (SPEs) on the basis of 95 wt.% PEO and 5 wt. of anhydrous cobalt (II) chloride hexahydrate (CoCl2 6H2O), hereafter called PCL5, by the spin-coating technique using different types of glass (normal, quartz, ITO) substrates. The PCL5 electrolyte exhibits the highest conductivity and the lowest optical bandgap and hence, it was selected as a component to fabricate the organic single-layer device.
8p larachdumlanat129 14-01-2021 9 1 Download
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Excellent conducting solid polymer electrolyte films were prepared by using Polyvinyl alcohol (PVA) and Iron alum through a reactive blending process. The effect of the concentration of the iron alum on the conducting behavior was studied in detail by varying the concentration of the alum in the PVA matrix. The functionality was studied using the Infrared (FT-IR) spectroscopic technique.
9p larachdumlanat129 14-01-2021 9 2 Download
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The maximum ionic conductivity of 5.39 108 Scm1 at 303 K was observed for the 5 mol VO2 ions doped PVP polymer electrolyte film. From the UV-Visible absorption spectra in the wavelength range of 200-800 nm the direct and indirect optical energy band gaps and optical absorption edges were found decreased with the increase in the VO2 ion concentration.
7p tamynhan4 06-09-2020 11 1 Download
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Proton-conducting polymer electrolyte films were prepared by dissolving NH4I salt in polyethylene oxide/methylcellulose (PEO/MC) blend polymers using the solution cast technique. The semi-crystalline nature of the sample was identified from the X-ray diffraction (XRD) pattern. The surface morphology on the electrical conductivity was analyzed by scanning electron microscopy (SEM).
9p tamynhan4 06-09-2020 13 1 Download