Effect of salt concentration in poly(vinyl alcohol)-based solid polymer electrolytes

Rajendran, S.; Sivakumar, M.

doi:10.1016/s0378-7753(03)00591-3

Cited by 148 publications

(66 citation statements)

References 17 publications

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“…The selected prefactors conductivity σ 0 for all polymer electrolytes were very close to the values measured by many authors (Khiar and Arof, 2011;Gong et al, 2008;Kang and Fang, 2004;Rajendran et al, 2003;Kang et al, 2003;Xu et al, 2001). We also see that the fraction of amorphous state increases with the ion concentration and mostly saturates at high ion concentration.…”

Section: Discussionsupporting

confidence: 88%

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A General Formula for Ion Concentration-Dependent Electrical Conductivities in Polymer Electrolytes

Aji¹

2012

American Journal of Applied Sciences

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Problem statement:The aim of this study is to develop a model for describing the effect of ion concentration on the electrical conductivity of polymer electrolytes by considering two mechanisms simultaneously: Enhancements of ion concentration and amorphous phase. Approach: The problems based on new observations in polymer electrolyte when ion concentration in the polymer electrolytes was increased, both the fraction of amorphous phase and the charge carriers increase simultaneously. The model was based on the assumption when ions were inserted into the polymer host, there was an optimum distance between ions at which the ions move easily throughout the polymer. The average distance between ions in the polymer depends on the ion concentration. And we also considered the effect of ion concentration on the amorphous phase in the polymer. Results: We inspected the validity of the model by comparing the model predictions with various experimental data. The new analytical expressions for the electrical conductivity dependent of ion concentration was developed by considering two mechanisms simultaneously in polymer electrolytes, i.e., enhancement of the carries concentration and amorphous phase fraction. Interestingly, most of fitting parameters were not arbitrarily selected, but were derived from the appropriate experimental data. Conclusion: The model can be used to explain the conductivity behavior of other polymer electrolyte systems by selecting appropriately less number of parameters. This model result is fully supported by available experimental data.

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Section: Discussionsupporting

confidence: 88%

“…The conductivity initially increases with ion concentration, reaches the maximum at a certain concentration after which it turns down at high ion concentrations (Khiar and Arof, 2011;Gong et al, 2008;Kang and Fang, 2004;Rajendran et al, 2003;Kang et al, 2003;Xu et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

A General Formula for Ion Concentration-Dependent Electrical Conductivities in Polymer Electrolytes

Aji¹

2012

American Journal of Applied Sciences

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“…There was a sharp, large exothermic peak at 495 °C concurrent with a weight loss of approximately 88%, which indicated the complete decomposition of the nanofiber that agrees with the TG curve ( Figure 4) 22,23 . As shown in Figure 4b, rapid weight loss occurred from 50 to 150 °C in the thermal curves of the PVA/SiO 2 hybrid nanofiber due to the polycondensation of Also on the DTA curve, endothermic peaks were observed at 106, 230, and 485 °C, while exothermic peaks occurred at 221, 390, 478, and 565 °C.…”

Section: Resultssupporting

confidence: 73%

Preparation and characterization of UV-cured hybrid polyvinyl alcohol nanofiber membranes by electrospinning

et al. 2014

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The present study investigated the possibility of preparing polyvinyl alcoholic (PVA) organicinorganic hybrid nanofiber membranes by electrospinning with UV irradiation. To this end, PVA, PVA/SiO 2 organic-inorganic hybrid obtained with Geniosil® XL 33 as a SiO 2 source, and imidazolefunctionalized mesoporous PVA/SiO 2 /N=N nanofiber membranes were synthesized. These membranes were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric-differential thermal analysis, and Brunauer-Emmett-Teller analysis. According to results, fine polymeric nanofibers were obtained in the size range of 100-200 nm for pure PVA nanofibers and 150-250 nm for PVA/SiO 2 hybrid nanofibers, while imidazole-functionalized PVA/ SiO 2 nanofibers were less than 100 nm. The membranes produced are suitable for use in various applications, including filtration and adsorption, in the biomedical and textile industries, among others.

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“…This is mainly due to the low cost, ease of device fabrication, interesting electrical, optical, and electrochemical properties. Many potential applications of the electrolytes may be realized via modification of their conductivity and investigation of their electrochemical properties [4][5][6][7]. Extensive studies have been carried out of the effects of doping on the conductivity of polymer electrolytes [1,4,5,8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Investigation of the Charge/Discharge Characteristics of Zinc/PVA-KOH/Carbon Cell

et al. 2009

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Electrochemical properties of a zinc/polyvinyl alcohol-potassium hydroxide/carbon cell have been investigated. In this cell, PVA-KOH gel has been used as an electrolyte with PVA/KOH wt.% ratio of 60:40, while zinc and carbon rods served as electrodes. The cylindrical glass vessel of length 3.0 cm and of diameter 2.0 cm has been used as a cell compartment. The current-voltage characteristics and open circuit voltage-time, charge voltage/current-time and discharge voltage/current-time studies have been done. The open circuit voltage has been observed for 160 h. It has been found that the cell shows stability and is rechargeable, too.

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Effect of salt concentration in poly(vinyl alcohol)-based solid polymer electrolytes

Cited by 148 publications

References 17 publications

A General Formula for Ion Concentration-Dependent Electrical Conductivities in Polymer Electrolytes

A General Formula for Ion Concentration-Dependent Electrical Conductivities in Polymer Electrolytes

Preparation and characterization of UV-cured hybrid polyvinyl alcohol nanofiber membranes by electrospinning

Fabrication and Investigation of the Charge/Discharge Characteristics of Zinc/PVA-KOH/Carbon Cell

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