scholarly journals Characterizations of Pectin/Lithium Sulfate Solid Biopolymer Electrolytes

2020 ◽  
Vol 8 (4S4) ◽  
pp. 135-139
Keyword(s):  
Ionic Conductivity ◽  
Lithium Sulfate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Casting Technique ◽  
Biopolymer Electrolytes ◽  
Amorphous Nature ◽  
Solution Casting Technique ◽  
Crystalline Nature ◽  
Good Transparency

In the present study, Pectin based Lithium sulfate added biopolymer electrolytes have been prepared by using Solution casting technique. Surface morphology of the prepared sample is investigated by Scanning Electron microscopy and crystalline nature is investigated by X-ray Diffraction. These films have a smooth surface and amorphous nature with good transparency. The Pectin is biopolymer which is ecofriendly and great abundance in earth. The maximum ionic conductivity value is obtained for 85Pectin:15Li2SO4 system. The change in ionic conductivity related to concentration of salt is also analyzed. The dielectric properties of the Pectin based system are also discussed.

scholarly journals Preparation and Characterization of Polymer Electrolyte of Glycidyl Methacrylate-Methyl Methacrylate-LiClO4Plasticized with Ethylene Carbonate

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
M. Imperiyka ◽  
A. Ahmad ◽  
S. A. Hanifah ◽  
M. Y. A. Rahman
Keyword(s):  
Polymer Electrolyte ◽  
Fourier Transforms ◽  
Ethylene Carbonate ◽  
X Ray Diffraction ◽  
Solar Cell Application ◽  
Casting Technique ◽  
Dye Sensitized ◽  
Amorphous Nature ◽  
Solution Casting Technique

In the present investigation, we study the properties of the plasticized polyglycidyl methacrylate P(GMA) copolymerized with polymethyl methacrylate P(MMA)-LiClO4polymer electrolyte prepared by solution casting technique. The electrolyte was characterized using impedance spectroscopy (EIS), Fourier transforms infrared (FTIR), cyclic voltammetry (CV), and X-ray diffraction (XRD). The conductivity was improved from1.3×10−12 S cm−1to8.7×10−6 S cm−1upon the addition of 25 wt.% LiClO4salt into P(GMA-MMA). The conductivity was improved from1.4×10−6 S cm−1to3.0×10−4 S cm−1upon the addition of 80 wt.% EC into P(GMA-MMA)-LiClO4The band that belongs to C–O–C is shifted farther than the band of C=O upon the addition of LiClO4into P(GMA-MMA). The band of C–O–C stretching is shifted to lower wavenumber upon the addition of EC into P(GMA-MMA)-LiClO4. Upon the addition of EC into P(GMA-co-MMA), the intensity of the peaks decreases, implying the amorphous nature of the electrolyte increases with the concentration of the plasticizer. The electrolyte is electrochemically stable at 3.8 V, making it suitable for dye-sensitized solar cell application.

scholarly journals Development and Characterization of Poly(1-vinylpyrrolidone-co-vinyl acetate) Copolymer Based Polymer Electrolytes

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Nurul Nadiah Sa’adun ◽  
Ramesh Subramaniam ◽  
Ramesh Kasi
Keyword(s):  
Ionic Liquid ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Vinyl Acetate ◽  
Polymer Electrolytes ◽  
Morphological Properties ◽  
X Ray Diffraction ◽  
Casting Technique ◽  
Solution Casting Technique

Gel polymer electrolytes (GPEs) are developed using poly(1-vinylpyrrolidone-co-vinyl acetate) [P(VP-co-VAc)] as the host polymer, lithium bis(trifluoromethane) sulfonimide [LiTFSI] as the lithium salt and ionic liquid, and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide [EMImTFSI] by using solution casting technique. The effect of ionic liquid on ionic conductivity is studied and the optimum ionic conductivity at room temperature is found to be 2.14 × 10−6 S cm−1for sample containing 25 wt% of EMImTFSI. The temperature dependence of ionic conductivity from 303 K to 353 K exhibits Arrhenius plot behaviour. The thermal stability of the polymer electrolyte system is studied by using thermogravimetric analysis (TGA) while the structural and morphological properties of the polymer electrolyte is studied by using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction analysis (XRD), respectively.

The Investigation on Ionic Conduction of PEMA Based Solid Polymer Electrolytes

2010 ◽  
Vol 93-94 ◽  
pp. 381-384
Author(s):  
Shahrul Amir ◽  
Mohamed Nor Sabirin ◽  
Ri Hanum Yahaya Subban
Keyword(s):  
Polymer Electrolytes ◽  
Ionic Conduction ◽  
Lithium Perchlorate ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
X Ray Diffraction ◽  
Conducting Film ◽  
X Ray ◽  
Casting Technique ◽  
Solution Casting Technique

Solid polymer electrolytes comprising of various weight ratios of poly(ethyl methacrylate) (PEMA) and lithium perchlorate (LiClO4) salt were prepared via solution casting technique using N,N-Dimethylformamide (DMF) as the solvent. The conductivity values of the electrolytes were determined utilizing Solatron 1260. The highest conductivity obtained is in the order of 10-6 S cm-1. Structural properties of the electrolytes were investigated by X-ray diffraction and the results show that the highest conducting film is the most amorphous.

Hexanoyl Chitosan-Polystyrene Blend Based Composite Polymer Electrolyte with Surface Treated TiO2 Fillers

2013 ◽  
Vol 594-595 ◽  
pp. 656-660
Author(s):  
Tan Winie ◽  
Asheila Jamal ◽  
Nur Shazlinda Muhammad Hanif ◽  
N.S.M. Shahril
Keyword(s):  
Polymer Electrolytes ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
X Ray Diffraction ◽  
Composite Polymer Electrolytes ◽  
X Ray ◽  
Casting Technique ◽  
Hexanoyl Chitosan ◽  
Solution Casting Technique ◽  
Increasing Temperature

Composite polymer electrolytes (CPEs) comprised of hexanoyl chitosan-polystyrene-LiCF3SO3-TiO2 were prepared by solution casting technique. The TiO2 fillers were treated with 4% sulphuric acid (H2SO4) aqueous solution. The effect of treated TiO2 on the structural and electrical behaviour of the prepared electrolyte systems was investigated by X-ray diffraction (XRD) and impedance spectroscopy, respectively. Addition of TiO2 decreases the crystallinity of the electrolytes. Ac conductivity was calculated from σ(ω) = εoεrωtanδ. It is found that at all frequencies, σ(ω) increases with increasing temperature. Dielectric constant decreases with increasing frequency and increases with increasing temperature.

Effects of Different Concentration in (w/v)% of Carboxymethyl Iota-Carrageenan Based Green Polymer Electrolyte

2015 ◽  
Vol 1107 ◽  
pp. 205-210
Author(s):  
Fatihah Najirah Jumaah ◽  
Azizan Ahmad ◽  
Hussein Hanibah ◽  
Nadhratun Naiim Mobarak ◽  
M.A. Ghani
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Amorphous Region ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Volume Percentage ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Green Polymer

The effect of different concentrations in weight per volume percentage, (w/v)% of iota-carrageenan and carboxymethyl-iota carrageenan used as the green polymer electrolyte has been studied. The polymer electrolyte films were prepared by solution casting technique. Different concentration in the range from 1.0 – 6.0 (w/v)% were dissolved in fix volume of acetic acid which act as solvent. The films have been analyzed through attenuated Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) measurement and electrochemical impedance spectroscopy (EIS). The EIS results showed that the ionic conductivity increased as the concentration of the polymer increases. In comparison between iota-carrageenan and carboxymethyl iota-carrageenan, carboxymethyl-iota carrageenan showed better results due to the presence of more active site. The highest conductivity achieved by iota-carrageenan and carboxymethyl iota-carrageenan were 3.45 × 10-6S cm-1and 9.57 × 10-4S cm-1at the concentration 3.0 and 4.0 (w/v)% , respectively. From the FTIR spectra, it depicts that the intensity of significant peaks of ether and carboxylate group increases as the concentration of polymer increases. The XRD analysis showed that as the concentration of polymer increase, the amorphous region in the films would be enhanced. This study showed that the concentration play significant role in the ionic conductivity improvement.

Effect of Ionic Liquid BMIMNO3 to Chitosan-Starch Blend Biopolymer Electrolyte System

2019 ◽  
Vol 290 ◽  
pp. 177-182
Author(s):  
Ahmad Hakimi Shaffie ◽  
M.S.M. Misenan ◽  
M.I.N. Isa ◽  
Azwani Sofia Ahmad Khiar
Keyword(s):  
Ionic Liquid ◽  
X Ray Diffraction ◽  
Electrolyte System ◽  
X Ray ◽  
Casting Technique ◽  
Wide Range ◽  
Solution Casting Technique ◽  
Biopolymer Electrolyte ◽  
Using Data ◽  
A Charge

Chitosan-Starch blend biopolymer electrolyte system doped with different percentage of BMIMNO3 was prepared via solution casting technique. The crystalinity of the system was calculated using data extracted from x-ray diffraction (XRD). The film was characterized by impedance spectroscopy HIOKI 3531-01 LCR Hi-Tester to measure its ionic conductivity over a wide range of frequency between 50Hz-5MHz and at temperatures between 298 K and 378 K. The result exhibit the advantages of ionic liquid as a charge carrier and also revealed that addition of 5% of BMIMNO3 shows the highest conductivity of (2.26 +-0.96) x 10-4 Scm-1 .Conductivity-temperature relationship indicate that the system seems to obey the Vogel-Tamman-Fulcher (VTF) behaviour.

Conduction Properties Study on Alginate Incorporated with Glycolic Acid Based Solid Biopolymer Electrolytes

2020 ◽  
Vol 981 ◽  
pp. 34-39
Author(s):  
Ahmad Faizrin Ahmad Fuzlin ◽  
Izan Izwan Misnon ◽  
Ahmad Salihin Samsudin
Keyword(s):  
Ionic Conductivity ◽  
Ambient Temperature ◽  
Glycolic Acid ◽  
Present System ◽  
Solution Casting ◽  
Casting Technique ◽  
Biopolymer Electrolytes ◽  
Dielectric Constant And Loss ◽  
Solution Casting Technique ◽  
Conduction Properties

This present work focuses on the conduction properties investigation on solid biopolymer electrolytes (SBEs) based alginate doped with various composition of glycolic acid (GA). The film was successfully prepared via solution casting technique and was characterized for conduction properties by using impedance spectroscopy. Based on ionic conductivity study, sample containing with 20 wt. % of GA possessed an optimum ionic conductivity of 5.32 × 10-5 Scm−1 at ambient temperature (303 K). The dielectric analysis revealed the highest ionic conductivity sample based alginate-GA SBEs has the highest dielectric constant and loss and increased significantly when temperature increases at ambient temperature. The dielectric properties shows that the entire alginate-GA SBEs are non-Debye behavior where there is no single relaxation occurred in the present system.

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.

Characterization of Proton Conducting Carboxymethyl Cellulose/Chitosan Dual-Blend Based Biopolymer Electrolytes

2016 ◽  
Vol 846 ◽  
pp. 539-544 ◽  
Author(s):  
Mohd Saiful Asmal Rani ◽  
N.S. Mohamed ◽  
Mohd Ikmar Nizam Isa
Keyword(s):  
Carboxymethyl Cellulose ◽  
Electrochemical Impedance ◽  
Ionic Conductivities ◽  
X Ray Diffraction ◽  
Casting Technique ◽  
Biopolymer Electrolytes ◽  
Electrolyte Film ◽  
Solution Casting Technique ◽  
Electrochemical Devices

This article presents the discovery on biopolymer electrolytes comprising of ammonium nitrate, NH4NO3 with dual-blend biopolymer materials, carboxymethyl cellulose/chitosan which were prepared via solution-casting technique. The biopolymer blend based electrolyte films were characterized by Fourier Transform Infrared spectroscopy to investigate the formation of the dual-blend biopolymer based complexes. X-Ray Diffraction result showed that all dual-blend samples were predominantly amorphous. Electrochemical impedance spectroscopy was conducted to obtain their ionic conductivities. The highest conductivity at ambient temperature of 1.03 × 10–5 S cm–1 was obtained for the electrolyte film containing 40 wt% of NH4NO3. These results indicated that the dual-blend biopolymer based electrolyte has potential for application of electrochemical devices.

scholarly journals Structural Properties and Catalytic Activity of Binary Poly (vinyl alcohol)/Al2O3 Nanocomposite Film for Synthesis of Thiazoles

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 100 ◽  
Author(s):  
Sayed M. Riyadh ◽  
Khaled D. Khalil ◽  
Ali H. Bashal
Keyword(s):  
Structural Properties ◽  
Vinyl Alcohol ◽  
Catalytic Efficiency ◽  
Catalytic Performance ◽  
Poly Vinyl Alcohol ◽  
X Ray Diffraction ◽  
Thiazole Derivatives ◽  
X Ray ◽  
Casting Technique ◽  
Solution Casting Technique

A solution casting technique was applied to prepare a binary poly (vinyl alcohol)/Al2O3 nanocomposite. The structural properties of nanocomposite were investigated using Fourier-transform infrared spectra, field emission scanning electron microscope, energy dispersive X-ray analyses, and X-ray diffraction. The hybrid PVA/Al2O3 film exhibited a conspicuous catalytic performance for synthesis of thiazole derivatives under mild reaction conditions. Moreover, the optimization of catalytic efficiency and reusability of this nanocomposite have been investigated.

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