Preparation and characterization of gel polymer electrolyte based on PVA-K<sub>2</sub>CO<sub>3</sub>

Abdulkadir, Bashir Abubakar; Dennis, John Ojur; Shukur, M. F.; Nasef, Mohamed Mahmoud; Usman, Fahad

doi:10.1080/25740881.2020.1765380

Cited by 15 publications

(32 citation statements)

References 46 publications

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“…The dipole-dipole interaction of polymer chains was reduced when glycerin was added, because it softens the polymer chain's backbone and lowers the polymer's Tg. The same pattern was found by Abdulkadir et al, 2020 [17].…”

Section: Results and Disscusionsupporting

confidence: 87%

“…The GPEs were created by injecting conducting salt (CuSO 4 ) into the polymer host (PVA) and plasticizing it with glycerin, as described in the experimental section. PVA and glycerin with hydroxyl or polar groups (-OH) produced a covalent dative bond with the CuSO 4 cations in the electrolytes [17,18]. This is because polymer materials (PVA) and plasticizers (glycerin) have -OH groups in their macromolecular chains and three-dimensional networks that can react with various inorganic salts [19,20].…”

Section: Results and Disscusionmentioning

confidence: 99%

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Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Ali

Kareem

Polu³

2022

J Inorg Organomet Polym

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Copper-ion conducting gel polymer electrolyte (GPE) systems based on polymer poly(vinyl alcohol) (PVA) and copper sulphate salt doped with glycerin as plasticizer have been synthesized by using solution casting method. Differential scanning calorimetry is used to examine the thermal effect of glycerin on a plasticized polymer electrolyte (DSC). With the addition of various quantities of glycerin, as a plasticizer in pure PVA and PVA+20wt.%CuSO 4 gel polymer electrolyte shows a decrease in the values of melting temperature (54.34°C), glass transition temperature (37.22°C) and percentage of crystallinity (11.65%). Compared to pure PVA, thermal degradation measured from TGA curve for the plasticized gel electrolyte is shifted to lower temperatures and the weight loss of the polymer electrolyte increase with increase of glycerin concentration. From DTG, the temperature of maximum decomposition for PVA is 283.4 o C, and it is decreased with adding 20 wt.% CuSO 4 and upon increased concentration of the plasticizer from 1 to 3 mL of glycerin. For pure PVA and PVA+20wt.% CuSO 4 , ε′ decreases with increasing glycerin concentration and peaks at 3 mL glycerin concentration. The maximum ionic conductivity obtained was 9.39×10 -4 S/cm for PVA+20wt.%CuSO 4 +3 mL glycerin.

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Section: Results and Disscusionsupporting

confidence: 87%

Section: Results and Disscusionmentioning

confidence: 99%

Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Ali

Kareem

Polu³

2022

J Inorg Organomet Polym

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“…The C dl was joined in parallel with charge transfer resistance (R ct ) and a capacitance that were incorporated in series in order to evaluate the contribution of pseudocapacitance [ 10 ]. Thus, the results established that the successful incorporation of K 2 CO 3 and SiO 2 into the polymer increase ion diffusion in the electrolyte system and therefore support adsorption of ions at the electrode-electrolyte interface, which leads to the increase in ionic conductivity [ 23 ]. The resistance R ct signifies charge transfer resistance of the CPEs on the charge absorption across the electrode/electrolyte interfaces.…”

Section: Resultsmentioning

confidence: 99%

“…For the preparation of the non-filler CPEs, a fixed ratio of PVA and K 2 CO 3 (70:30) was added into 20 mL of deionized water in a glass beaker. The two solutions were mixed and heated at 80 °C with continuous vigorous stirring using thermostat until the two solutions were completely dissolved to form a composite of PVA-K 2 CO 3 as reported in our previous study [ 23 ]. For the preparation of CPEs containing filler, an appropriate amount of SiO 2 was added to the prepared PVA-K 2 CO 3 composites, heated at 80 °C continuously with vigorous stirring until homogeneous, clear, and viscous solution were obtained.…”

Section: Methodsmentioning

confidence: 99%

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Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite

et al. 2020

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Composite polymer electrolyte (CPE) based on polyvinyl alcohol (PVA) polymer, potassium carbonate (K2CO3) salt, and silica (SiO2) filler was investigated and optimized in this study for improved ionic conductivity and potential window for use in electrochemical devices. Various quantities of SiO2 in wt.% were incorporated into PVA-K2CO3 complex to prepare the CPEs. To study the effect of SiO2 on PVA-K2CO3 composites, the developed electrolytes were characterized for their chemical structure (FTIR), morphology (FESEM), thermal stabilities (TGA), glass transition temperature (differential scanning calorimetry (DSC)), ionic conductivity using electrochemical impedance spectroscopy (EIS), and potential window using linear sweep voltammetry (LSV). Physicochemical characterization results based on thermal and structural analysis indicated that the addition of SiO2 enhanced the amorphous region of the PVA-K2CO3 composites which enhanced the dissociation of the K2CO3 salt into K+ and CO32− and thus resulting in an increase of the ionic conduction of the electrolyte. An optimum ionic conductivity of 3.25 × 10−4 and 7.86 × 10−3 mScm−1 at ambient temperature and at 373.15 K, respectively, at a potential window of 3.35 V was observed at a composition of 15 wt.% SiO2. From FESEM micrographs, the white granules and aggregate seen on the surface of the samples confirm that SiO2 particles have been successfully dispersed into the PVA-K2CO3 matrix. The observed ionic conductivity increased linearly with increase in temperature confirming the electrolyte as temperature-dependent. Based on the observed performance, it can be concluded that the CPEs based on PVA-K2CO3-SiO2 composites could serve as promising candidate for portable and flexible next generation energy storage devices.

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Cellulose acetate-based gel electrolytes grafted with surface-functionalized SiO2 nanofiber for green energy storing applications

Das,

Shukla,

Boruah

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Preparation and characterization of gel polymer electrolyte based on PVA-K₂CO₃

Cited by 15 publications

References 46 publications

Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite

Cellulose acetate-based gel electrolytes grafted with surface-functionalized SiO2 nanofiber for green energy storing applications

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Preparation and characterization of gel polymer electrolyte based on PVA-K2CO3

Cited by 15 publications

References 46 publications

Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite

Cellulose acetate-based gel electrolytes grafted with surface-functionalized SiO2 nanofiber for green energy storing applications

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Preparation and characterization of gel polymer electrolyte based on PVA-K₂CO₃