Electrical transport behaviour of bio-polymer electrolyte system: Potato starch+ammonium iodide

Kumar, Manindra; Tiwari, Tuhina; Srivastava, Neelam

doi:10.1016/j.carbpol.2011.11.059

Cited by 112 publications

(40 citation statements)

References 35 publications

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“…46 Hence, the large value of " 0 is obtained at lower frequencies. While at high frequency, because of fast periodic reversal effect of the electric field, diffusion of ions is not feasible and incapability of dipoles to orient themselves in the direction of the applied alternating field.…”

Section: Dielectric Studymentioning

confidence: 99%

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Gohel

Kanchan

2018

J. Adv. Dielect.

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Poly(vinylidene fluoride-hexafluropropylene) (PVDF-HFP) and poly(methyl methacrylate) (PMMA)-based gel polymer electrolytes (GPEs) comprising propylene carbonate and diethyl carbonate mixed plasticizer with variation of lithium perchlorate (LiClO 4 ) salt concentrations have been prepared using a solvent casting technique. Structural characterization has been carried out using XRD wherein diffraction pattern reveals the amorphous nature of sample up to 7.5 wt.% salt and complexation of polymers and salt have been studied by FTIR analysis. Surface morphology of the samples has been studied using scanning electron microscope. Electrochemical impedance spectroscopy in the temperature range 303-363 K has been carried out for electrical conductivity. The maximum room temperature conductivity of 2.83Â10 À4 S cm À1 has been observed for the GPE incorporating 7.5 wt.% LiClO 4 . The temperature dependence of ionic conductivity obeys the Arrhenius relation. The increase in ionic conductivity with change in temperatures and salt content is observed. Transport number measurement is carried out by Wagner's DC polarization method. Loss tangent (tan ) and imaginary part of modulus (M 00 ) corresponding to dielectric relaxation and conductivity relaxation respectively show faster relaxation process with increasing salt content up to optimum value of 7.5 wt.% LiClO 4 . The modulus (M 00 ) shows that the conductivity relaxation is of non-Debye type (broader than Debye peak).

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Section: Dielectric Studymentioning

confidence: 99%

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Gohel

Kanchan

2018

J. Adv. Dielect.

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“…It was found that presence of KI in biopolymer matrix enhances the ionic conductivityup to a certaindoping ratio. The increase in the ionic conductivity with increasing KI concentration is generally correlated with the increase in the number of mobile charge carriers while the reduction observed in this value after reaching a maximacan be attributed to the formation of ion multiples [136,163,166]. The effect of salt concentration in biopolymer electrolyte matrix is demonstrated through dissociated ions model in Fig.…”

Section: Electrical Measurements 421 Electrical Conductivity Measumentioning

confidence: 91%

“…Adding (GlycerolþLiCl) and KI in Sago Palm matrix enhances the ionic conductivity and conductivity maxima was obtained by adding LiCl where conductivity value approachedto 10 À 3 S/cm with LiCl [38] and 3.4 Â 10 À 4 S/cm for KI [136,137]. Potato starch with NH 4 I based biopolymer electrolyte prepared by solution casting technique gives best ionic conductivity of ∼2.4 Â 10 À 4 S/cm [163].…”

Section: Plant Seeds Plant Tuber and Root Cereal Starchmentioning

confidence: 99%

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Perspectives for solid biopolymer electrolytes in dye sensitized solar cell and battery application

Singh¹,

Polu²,

Bhattacharya³

et al. 2016

Renewable and Sustainable Energy Reviews

118

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a b s t r a c tPhotovoltaic technologies represent one of the leading research areas of solar energy which is one of the most powerful renewable alternatives of fossil fuels. In a common photovoltaic application the batteries play a key role in storage of energy generated by solar panels. Although it will take time for dye sensitized solar cells (DSSCs) and batteries based on biopolymer electrolytes to take their places in the market, laboratory studies prove that they have a lot to offer. Most efficient DSSCs and batteries available in market are based on liquid electrolytes. The advantages of liquid electrolytes are having high conductivity and good electrode-electrolyte interface whereas, disadvantages like corrosion and evaporation limit their future sustainability. Biopolymer electrolytes are proposed as novel alternatives which may overcome the problems stated above. In this review, we focus on fabrication, working principle as well as up to date status of DSSCs and batteries using biopolymer electrolytes. The effects of structural and electrical properties of biopolymer based electrolytes on the solar energy conversion efficiencies of DSSCs and their compatibility with lithium or other salts in battery applications are summarized. Biopolymer electrolyte based DSSCs are categorized on the basis of types of additives and recent outcomes of author's laboratory studies on biopolymer electrolyte based DSSCs and batteries are also presented.

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“…In the past few years, many natural polymers have been studied as polymer hosts in electrolytes due to cost effective and its environmentally friendly characteristics (Kumar et al, 2012;Shanti, 2011). Starch is one of the natural polymer which is non-toxic, biodegradable and available in abundance (Yusof et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Conductivity studies of graphene oxide on biopolymer electrolyte

Shahrudin

Ahmad

2016

Int. j. adv. appl. sci

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In this research, biopolymer electrolyte has been prepared by doping cornstarch with sodium iodide (NaI) using solution casting method. The incorporation of 25% NaI resulted in maximum conductivity of the electrolyte at 1.46 x 10 -4 S cm -1 . The enhancement of the electrical conductivity to 2.61 x 10 -3 S cm -1 was achieved with further addition of graphene oxide (GO). The effect of GO on the electrolyte system were investigated by deploying electrical impedance spectroscopy (EIS) measurement at temperature of 298K-373K. Electrical conductivity as function of temperature have been investigated and revealed that the conductivity decreases as temperature increase. Dielectric studies were performed in order to study the ion mobility in the electrolyte system.

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Electrical transport behaviour of bio-polymer electrolyte system: Potato starch+ammonium iodide

Cited by 112 publications

References 35 publications

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Perspectives for solid biopolymer electrolytes in dye sensitized solar cell and battery application

Conductivity studies of graphene oxide on biopolymer electrolyte

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Electrical transport behaviour of bio-polymer electrolyte system: Potato starch+ammonium iodide

Cited by 112 publications

References 35 publications

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO4salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO4salt

Perspectives for solid biopolymer electrolytes in dye sensitized solar cell and battery application

Conductivity studies of graphene oxide on biopolymer electrolyte

Contact Info

Product

Resources

About

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt