Conductivity and Dielectric Studies of Methylcellulose/Chitosan-NH4CF3SO3 Polymer Electrolyte

2013 ◽  
Vol 594-595 ◽  
pp. 818-822 ◽  
Author(s):  
K.Z. Hamdan ◽  
A.S.A. Khiar
Keyword(s):  
Room Temperature ◽  
Methyl Cellulose ◽  
Solution Casting ◽  
Dielectric Studies ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Casting Technique ◽  
Dielectric Data ◽  
Solution Casting Technique ◽  
Chitosan Blends

Films of methyl cellulose (MC) /chitosan blends were prepared via solution casting technique and their properties with different amount of ammonium trilate, NH4CF3SO3 were compared. Measurements of conductivity as a function of frequency at room temperature on these films were carried out using HIOKI 3532-50 LCR Hi-Tester where the frequency was set between 50 Hz to 1 MHz. Samples having 40 wt% of NH4CF3SO3 exhibit the highest room temperature conductivity of (4.99±4.18) x 10-6 Scm-1. Dielectric data were analyzed using complex permittivity and complex electrical modulus for the sample with the highest ionic conductivity.

Electrical Property of Methylcellulose/Chitosan-NH4NO3-EC Plasticized Polymer Electrolyte

2015 ◽  
Vol 719-720 ◽  
pp. 82-86 ◽  
Author(s):  
N.L.M. Zazuli ◽  
A.S.A. Khiar
Keyword(s):  
Electrical Property ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Ethylene Carbonate ◽  
Solution Casting ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Casting Technique ◽  
Dielectric Data ◽  
Solution Casting Technique

Polymer electrolytes blends of methylcellulose (MC)/chitosan-ammonium triflate (NH4CF3SO3) plasticized with Ethylene Carbonate (EC) were prepared by solution-casting technique. The effect on electrical property was investigated by impedance spectroscopy. Sample with 45 wt% of EC exhibit the highest room temperature conductivity of 2.16 × 10-4 Scm-1. Dielectric data were analyzed for the sample with the highest conductivity.

scholarly journals Ionic conductivity and dielectric studies of LiClO4 doped poly(vinylalcohol)(PVA)/chitosan(CS) composites

2014 ◽  
Vol 04 (04) ◽  
pp. 1450033 ◽  
Author(s):  
Sunil G. Rathod ◽  
R. F. Bhajantri ◽  
V. Ravindrachary ◽  
P. K. Pujari ◽  
T. Sheela
Keyword(s):  
Ionic Conductivity ◽  
Loss Factor ◽  
Room Temperature ◽  
Composite Films ◽  
Solution Casting ◽  
Dielectric Studies ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Polymer Host ◽  
Ft Raman

This paper focuses on the dielectric constant (ε′), dielectric loss factor (ε″) and frequency dependent conductivity (σac) properties of newly prepared poly(vinylalcohol) (PVA) chitosan (CS) composite films incorporated with different concentrations of LiClO 4. The composite films were prepared using solution casting technique. The complexation between salt and polymer host is confirmed by FT Raman and UV-Vis studies. The sample containing 20 wt.% LiClO 4 exhibits a highest ionic conductivity of 3 × 10-6 S/cm at room temperature. The dielectric properties of the composites follow non-Debye behavior.

Investigation of Ionic Conduction and Morphological Properties of PMMA-Based Polymer Electrolytes Containing Lithium Iodide

2012 ◽  
Vol 545 ◽  
pp. 264-268
Author(s):  
Nurul Rozullyah Zulkepely ◽  
Siti Rohana Majid ◽  
Zurina Osman
Keyword(s):  
Room Temperature ◽  
Inorganic Salt ◽  
Ionic Conduction ◽  
Ethylene Carbonate ◽  
Morphological Properties ◽  
Lithium Iodide ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Casting Technique ◽  
Solution Casting Technique

In this study, the two systems of polymethylmethacrylate (PMMA) based polymer electrolyte films have been prepared by the solution casting technique. Lithium iodide (LiI) and ethylene carbonate (EC) were used as inorganic salt and plasticizer, respectively. The highest room temperature conductivity for the plasticized system and unplasticized system is 4.42 x 10-5Scm-1and 4.37 x 10-6Scm-1, respectively. The conductivity-temperature dependence studies have been performed on these films in the temperature range of 303 K to 373 K. It can be observed that the logσversus 1000/T plots obey the Arrhenius rule and VTF rule for the plasticized film and unplasticized film, respectively [1-3]. The surface morphology of the plasticized and unplasticized films was observed by using scanning electron microscope (SEM).

Fabrication and Morphological Characterization of Barium Titanate-Based Polymeric Nanocomposite Thin Films

2018 ◽  
pp. 50-59 ◽  
Author(s):  
Sudhanshu Singh ◽  
Umesh Kumar Dwivedi
Keyword(s):  
Barium Titanate ◽  
Room Temperature ◽  
Composite Films ◽  
Morphological Characterization ◽  
Solution Casting ◽  
Weight Percentage ◽  
Casting Technique ◽  
Nanocomposite Thin Films ◽  
Solution Casting Technique

In this critical review chapter, the authors explain the development of composite films of Barium Titanate (BaTiO3) and Poly (methyl methacrylate) prepared by solution casting technique. Different weight percentage composition of BaTiO3 has been selected to find out the best optimization condition for further investigation and correlate the results. The structural properties have been carried out at room temperature using XRD. Efforts have been made to correlate the results with investigated XRD results of pure BaTiO3 and its composites as observed by other workers at room temperature. The flow of experimental work and microscopic images are explained.

Electrochemical Stability of High Conducting PAN-Based Electrolytes for Lithium Ion Polymer Cells

2014 ◽  
Vol 1024 ◽  
pp. 335-338
Author(s):  
Woon Gie Chong ◽  
Khairul Bahiyah Md Isa ◽  
Lisani Othman ◽  
Nurul Husna Zainol ◽  
Siti Mariam Samin ◽  
...  
Keyword(s):  
Ethylene Carbonate ◽  
Lithium Ion ◽  
Linear Sweep Voltammetry ◽  
Electrochemical Stability ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Charge Concentration ◽  
Lithium Tetrafluoroborate

Polyacrylonitrile (PAN) based polymer electrolytes composed of PAN, lithium tetrafluoroborate (LiBF4), ethylene carbonate (EC) and dimethyl phthalate (DMP) were prepared by solution casting technique. The variation of conductivity with LiBF4 concentrations of the prepared films has been studied using AC impedance spectroscopy. The conductivity of the films is charge concentration dependent and the highest room temperature conductivity of 1.08 ×10-2 S cm-1 is achieved for the film with optimum composition. The thermal activated conductivity of the films obeys Arrhenius rule in the temperature range from 303 K to 353 K. The electrochemical stability of the PAN-based films has been investigated using linear sweep voltammetry (LSV) with three electrodes system. The films were found to be electrochemically stable up to 4.4 V. The reversibility of the lithium ions conduction in the polymer electrolyte films have been studied using cyclic voltammetry (CV).

Electrical Analysis of Cornstarch-Based Polymer Electrolyte Doped with NaCl

2017 ◽  
Vol 268 ◽  
pp. 347-351 ◽  
Author(s):  
Syakirah binti Shahrudin ◽  
Azizah Hanom Ahmad
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Transport Number ◽  
Corn Starch ◽  
Solution Casting ◽  
Arrhenius Model ◽  
Casting Technique ◽  
Solution Casting Technique

Corn starch (CS) – sodium chloride (NaCl) based polymer electrolytes were prepared by solution casting technique. At room temperature, CS-NaCl film with ratio of 70 wt. % - 30 wt. % demonstrates the highest ionic conductivity in the range of (1.72 ± 0.12) x10-5 Scm-1. Temperature-dependence ionic conductivity study follows Arrhenius model and using related plot, the activation energy for highest conducting composition is 0.16eV. The transport number measurement studies confirmed that the ionic conductivity of this polymer electrolyte is due to ions. Fourier transform infrared spectroscopy (FTIR) analysis proved the interaction between CS and NaCl.

Electrical Properties of Starch/PEO Blend Polymer Electrolytes

2015 ◽  
Vol 754-755 ◽  
pp. 29-33
Author(s):  
K. Ramly ◽  
A.S.A. Khiar
Keyword(s):  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Ammonium Nitrate ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Solution Casting ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Blend Polymer

Films of starch/PEO blends were prepared via solution casting technique and their properties with different amount of ammonium nitrate, NH4NO3were compared. The measurement of conductivity at room temperature were carried out using impedance spectroscopy. The highest conductivity calculated is found to be 2.81±0.46 x 10-7Scm-1with addition of 35wt% NH4NO3 .

Investigation on the Effect of TiO2 Nanofiller to the Structural and Conductivity Characteristics of Poly(vinylidene fluoride-co-hexafluoropropylene)/Poly(ethyl methacrylate) Based Polymer Electrolytes System

2013 ◽  
Vol 594-595 ◽  
pp. 604-607
Author(s):  
Siti Rudhziah ◽  
N.S. Mohamed
Keyword(s):  
Polymer Electrolytes ◽  
Vinylidene Fluoride ◽  
Scanning Calorimetry ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Casting Technique ◽  
Ethyl Methacrylate ◽  
Nanocomposite Polymer ◽  
Poly Vinylidene Fluoride ◽  
Solution Casting Technique

In this study, Poly (vinylidene fluoride-co-hexafluoropropylene)/Poly (ethyl methacrylate (PEMA) nanocomposite polymer electrolytes was prepared by solution casting technique. The effects of TiO2 nanofiller on the structural, thermal and conductivity characteristics were examined using x-ray diffraction, scanning electron microscopy, differential scanning calorimetry and impedance spectroscopy. The crystallinity and conductivity of the salted system are found to increase with the addition of TiO2. The system containing 5 wt % of TiO2 exhibited the highest room temperature conductivity of 1.32 × 10-3 S cm-1.

Interaction between Carboxy Methylcellulose and Salicylic Acid Solid Biopolymer Electrolytes

2015 ◽  
Vol 1107 ◽  
pp. 223-229 ◽  
Author(s):  
Mohd Lukhman Hakim Rozali ◽  
Zakiyah Ahmad ◽  
M.I.N. Isa
Keyword(s):  
Fourier Transform ◽  
Salicylic Acid ◽  
Infrared Spectroscopy ◽  
Ionic Conductivity ◽  
Room Temperature ◽  
Solution Casting ◽  
Arrhenius Behavior ◽  
Casting Technique ◽  
Biopolymer Electrolytes ◽  
Solution Casting Technique

In this research, solid biopolymer electrolytes (SBEs) based on carboxy methylcellulose (CMC) has been prepared by doping different concentration of salicylic acid (SA) via solution casting technique. Fourier Transform Infrared spectroscopy was used to study the interaction between the host and ionic dopant. New peaks were observed at 1700, 2890, 2920 cm-1.The highest ionic conductivity achieved at room temperature is 9.50 × 108 S cm1 for CMC incorporated with 7 wt. % SA. In addition, the temperature dependence of the SBEs exhibit Arrhenius behavior.

scholarly journals Resorcinol-Formaldehyde (RF) as a Novel Plasticizer for Starch-Based Solid Biopolymer Electrolyte

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2170
Author(s):  
Vidhya Selvanathan ◽  
Mohd Hafidz Ruslan ◽  
Mohammod Aminuzzaman ◽  
Ghulam Muhammad ◽  
N. Amin ◽  
...  
Keyword(s):  
Polymer Electrolyte Membrane ◽  
Amorphous Region ◽  
Lithium Triflate ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Resorcinol Formaldehyde ◽  
Casting Technique ◽  
Electrolyte Membrane ◽  
Solution Casting Technique ◽  
Biopolymer Electrolyte

A starch-resorcinol-formaldehyde (RF)-lithium triflate (LiTf) based biodegradable polymer electrolyte membrane was synthesized via the solution casting technique. The formation of RF crosslinks in the starch matrix was found to repress the starch’s crystallinity as indicated by the XRD data. Incorporation of the RF plasticizer improved the conductivity greatly, with the highest room-temperature conductivity recorded being 4.29 × 10−4 S cm−1 achieved by the starch:LiTf:RF (20 wt.%:20 wt.%:60 wt.%) composition. The enhancement in ionic conductivity was an implication of the increase in the polymeric amorphous region concurrent with the suppression of the starch’s crystallinity. Chemical complexation between the plasticizer, starch, and lithium salt components in the electrolyte was confirmed by FTIR spectra.

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