Optimization of Benzoguanamine doped PVDF/KI/I2 Solid Polymer Electrolytes for Dye-Sensitized Solar Cell Applications

Abstract Benzoguanamine doped 0%, 10%, 20%, 30%, 40% and 50% PVDF/KI/I2 polymer electrolytes were prepared by solution casting technique. The crystallinity, surface morphology, ionic conductivity and photovoltaic performance of polymer electrolytes were analyzed. The PXRD studies have confirmed the decreased and increased crystallinity of benzoguanamine doped polymer electrolytes. The surface morphology of polymer electrolytes is discussed using SEM analysis. From the AC-impedance analysis, ionic conductivity of benzoguanamine doped 0%, 10%, 20%, 30%, 40% and 50% PVDF/KI/I2 polymer electrolytes were calculated as 5.57 × 10− 6 Scm− 1, 1.05 × 10− 5 Scm− 1, 5.95 × 10− 5 Scm− 1, 3.09 × 10− 5 Scm− 1, 1.56 × 10− 5 Scm− 1 and 1.48 × 10− 5 Scm− 1, respectively. The photovoltaic performance of benzoguanamine doped 0%, 10%, 20%, 30%, 40% and 50% PVDF/KI/I2 polymer electrolytes based DSSCs have achieved 1.5%, 1.9%, 2.8%, 2.5%, 2.3% and 2.1% power conversion efficiency, respectively.

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Characterization of Plasticized PMMA-LiClO4 Solid Polymer Electrolytes

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.585.185 ◽

2012 ◽

Vol 585 ◽

pp. 185-189 ◽

Cited By ~ 3

Author(s):

Rajni Sharma ◽

Anjan Sil ◽

Subrata Ray

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Thermal Analyses ◽

Impedance Analysis ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Casting Technique ◽

Ac Impedance Analysis ◽

Solution Casting Technique

In the present work, the effect of Li salt i.e. LiClO4 contained in composite plasticizer (PC+DEC) with three different concentrations on ionic transport and other electrochemical properties of PMMA based gel polymer electrolytes synthesized has been investigated. The electrolytes have been synthesized by solution casting technique by varying the wt (%) of salt and plasticizer. The formation of polymer-salt complexes and their structural characterization have been carried out by FTIR spectroscopic and XRD analyses. The room temperature ionic conductivity of the electrolyte composition 0.6PMMA-0.125(PC+DEC)-0.15LiClO4 (wt %) has been found to be maximum whose magnitude is 0.40×10-5 S/cm as determined by ac impedance analysis. The temperature dependent ionic conductivity of electrolyte sample0.6PMMA-0.125(PC+DEC)-0.15LiClO4 has further been investigated. Thermal analyses of electrolyte samples of all three compositions have also been done.

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Preparation and Characterization of Ammonium Ceric Nitrate Doped PVDF Polymer Electrolytes

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.d1171.1284s219 ◽

2019 ◽

Vol 8 (4S2) ◽

pp. 903-906

Keyword(s):

Polymer Electrolytes ◽

Vinylidene Fluoride ◽

Impedance Analysis ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Casting Technique ◽

Ac Impedance Analysis ◽

Poly Vinylidene Fluoride ◽

Solution Casting Technique ◽

Ammonium Ceric Nitrate

Poly [vinylidene fluoride] (PVdF): Ammonium ceric nitrate ((NH4)2Ce(NO3)6) based Proton conducting solid polymer electrolytes (SPEs) are prepared by solution casting technique. Polymer electrolytes are characterized by several techniques. The Structural property of the electrolytes are confirmed by XRD. The functional groups present in polymer electrolytes are confirmed by FTIR. The conductivity of the polymer electrolytes are calculated by using AC impedance analysis. The Maximum ionic conductivity is obtained for 2wt% of ammonium ceric nitrate doped polymer electrolyte.

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MICRO RAMAN, 7Li NMR AND ac IMPEDANCE ANALYSIS OF PVAC:LiClO4 SOLID POLYMER ELECTROLYTES

Solid State Ionics ◽

10.1142/9789812773104_0076 ◽

2006 ◽

Author(s):

R. BASKARAN ◽

S. SELVASEKARAPANDIAN ◽

N. KUWATA ◽

O. KAMISHIMA ◽

J. KAWAMURA ◽

...

Keyword(s):

Polymer Electrolytes ◽

Impedance Analysis ◽

Ac Impedance ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

7Li Nmr ◽

Ac Impedance Analysis

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Structural, transport, morphological, and thermal studies of nano barium titanate–incorporated magnesium ion conducting solid polymer electrolytes

Polymers and Polymer Composites ◽

10.1177/09673911211047325 ◽

2021 ◽

pp. 096739112110473

Author(s):

Jayanthi S ◽

Kalapriya K

Keyword(s):

Ionic Conductivity ◽

Barium Titanate ◽

Polymer Electrolytes ◽

Vinylidene Fluoride ◽

Thermal Studies ◽

Xrd Analysis ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Casting Technique ◽

Ion Conducting

A new series of nanocomposite polymer electrolytes (NCPEs) was prepared using poly(vinylidene fluoride–co–hexafluoro propylene) P(VdF-HFP) as polymer, magnesium triflate (MgTr) as salt and nano-sized barium titanate (BaTiO3) (<100 nm) as nanofiller via traditional solution casting technique. Decrease in crystalline nature of the samples due to the incorporation of nano BaTiO3 was revealed through X-ray diffraction (XRD) analysis. From AC impedance spectroscopy, maximum conductivity of 4.11 × 10−4 Scm−1 was attained for the addition of 6 wt% of nano BaTiO3 to the P(VdF-HFP)/MgTr matrix. Dielectric studies were found to be in accordance with the ionic conductivity studies. For the most highly conducting sample, a greater number of mountain valley pattern was observed from Atomic Force Microscopy (AFM) analysis. Thermal stability of the sample, P(VdF-HFP)/MgTr/BaTiO3 (6 wt%) (which possessed maximum ionic conductivity) was observed through TG/differential thermal analysis studies. All these results suggested that these materials are favorable and find application in practical electrochemical devices.

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Influence of Blend on the Conductivity in Poly(Ethyl Methacrylate)/Poly(Vinyl Acetate) Based Polymer Electrolytes

Nano Hybrids and Composites ◽

10.4028/www.scientific.net/nhc.17.202 ◽

2017 ◽

Vol 17 ◽

pp. 202-216

Author(s):

R. Premila ◽

S. Rajendran ◽

K. Kesavan

Keyword(s):

Ionic Conductivity ◽

Vinyl Acetate ◽

Polymer Blend ◽

Polymer Electrolytes ◽

Ac Impedance ◽

Dielectric Behavior ◽

Solid Polymer ◽

Casting Technique ◽

Ethyl Methacrylate ◽

Ac Impedance Analysis

The polymer blend electrolytes composed of poly (ethyl methacrylate)(PEMA) and Poly (vinyl acetate)(PVAc) as host polymer and lithium perchlorate (LiClO4) as a salt are synthesized by solvent casting technique. The polymer membranes with different wt% of PEMA and PVAc are subjected to AC impedance analysis for the investigation of ionic conductivity. The maximum ionic conductivity of 3.541 X 10- 5Scm- 1 at 303K is reported for PEMA/PVAC (70/30wt%) –LiClO4 (8wt%) polymer blend electrolyte system.The complexation has been confirmed by XRD and FTIR techniques. The glass transition temperature (Tg) of the blend polymer electrolytes has been obtained from DSC measurements. The SEM micrographs show the surface morphology of the prepared samples. The electrochemical stability of the sample exhibiting high conductivity has been carried out using linear sweep voltammetry (LSV) and cyclic voltammetry (CV) measurements. The potential window has been found to be-2.5 to +2.5 V. The lithium transference number evaluated using chronoamperometry technique results in a value of 0.90. The dielectric behavior of the solid polymer blend electrolytes has been analyzed as a function of frequency and temperature. The dc conductivity values obtained from the conductance spectra match the ac impedance results. The photoluminescence spectra that contain information about the local free volume of the prepared samples justify the conductivity results. The two and three dimensional images of the maximum ionic conducting sample exhibit numerous micropores.

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Solid Polymer Electrolytes from Crosslinked PEG and Dilithium N,N'-Bis(trifluoromethanesulfonyl)perfluoroalkane-1,ω-disulfonamide and Lithium Bis(trifluoromethanesulfonyl)imide Salts

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc20081777 ◽

2008 ◽

Vol 73 (12) ◽

pp. 1777-1798 ◽

Cited By ~ 1

Author(s):

Olt E. Geiculescu ◽

Rama V. Rajagopal ◽

Emilia C. Mladin ◽

Stephen E. Creager ◽

Darryl D. Desmarteau

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Minimum Energy ◽

Ionic Conductivities ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Segmental Motion ◽

Concentrated Electrolytes ◽

Two Factors ◽

Poly Ethylene

The present work consists of a series of studies with regard to the structure and charge transport in solid polymer electrolytes (SPE) prepared using various new bis(trifluoromethanesulfonyl)imide (TFSI)-based dianionic dilithium salts in crosslinked low-molecular-weight poly(ethylene glycol). Some of the thermal properties (glass transition temperature, differential molar heat capacity) and ionic conductivities were determined for both diluted (EO/Li = 30:1) and concentrated (EO/Li = 10:1) SPEs. Trends in ionic conductivity of the new SPEs with respect to anion structure revealed that while for the dilute electrolytes ionic conductivity is generally rising with increased length of the perfluoroalkylene linking group in the dianions, for the concentrated electrolytes the trend is reversed with respect to dianion length. This behavior could be the result of a combination of two factors: on one hand a decrease in dianion basicity that results in diminished ion pairing and an enhancement in the number of charge carriers with increasing fluorine anion content, thereby increasing ionic conductivity while on the other hand the increasing anion size and concentration produce an increase in the friction/entanglements of the polymeric segments which lowers even more the reduced segmental motion of the crosslinked polymer and decrease the dianion contribution to the overall ionic conductivity. DFT modeling of the same TFSI-based dianionic dilithium salts reveals that the reason for the trend observed is due to the variation in ion dissociation enthalpy, derived from minimum-energy structures, with respect to perfluoroalkylene chain length.

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Polyvinyl fibers as outperform candidature in the solid polymer electrolytes

Journal of Industrial Textiles ◽

10.1177/1528083720970620 ◽

2020 ◽

pp. 152808372097062

Author(s):

Muhammad Yameen Solangi ◽

Umair Aftab ◽

Muhammad Ishaque ◽

Aqeel Bhutto ◽

Ayman Nafady ◽

...

Keyword(s):

Thermal Stability ◽

Weight Loss ◽

Ionic Conductivity ◽

Polymer Electrolytes ◽

Vital Role ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Main Challenge ◽

Different Temperatures ◽

Solution Cast

Solid polymer electrolytes (SPEs) are the best choice to replace liquid electrolytes in supercapacitors, fuel cells, solar cells and batteries. The main challenge in this filed is the ionic conductivity and thermal stability of SPEs which is still not up to mark, therefore more investigations are needed to address these issues. In this study, PVA/salt based SPEs was fabricated using both solution cast and electro-spinning methods to probe the effect of different salts such as (NaCl, KCl and KI) and their concentrations on the ionic conductivity. Scanning electron microscopy (SEM) x and Fourier Transform Infra-Red (FTIR) have been employed to study the morphology as well as the different functional groups of SPEs, respectively. It was noted that small addition of NaCl, KCl and KI salts in SPEs dramatically increased the ionic conductivity to 5.95×10−6, 5.31×10−6 and 4.83×10−6 S/cm, respectively. Importantly, the SPEs obtained with NaCl via electro-spinning have higher ionic conductivity (5.95×10−6 S/cm) than their casted SPEs (1.87×10−6 S/cm). Thermal stability was also studied at two different temperatures i.e. 80 °C and 100 °C. The weight loss percentage of electrospun SPEs have zero percent weight loss than the solution based SPEs. The combined results clearly indicated that the nature of salt, concentration and fabrication process play a vital role in the ionic conductivity. Also, the NaCl salt with low molecular weight at low concentrations shows an enhanced ionic conductivity.

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