Characterization of C2H2O4 doped PVA solid polymer electrolyte
-
Karur Alakanandana
,
Annadanam Rama Subrahmanyam
Abstract
A novel solid polymer electrolyte based on poly vinyl alcohol (PVA) with oxalic acid was prepared by the solution caste technique. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) measurements carried out on the samples clearly revealed the modification of the PVA structure; the PVA crystallinity was reduced with increasing oxalic acid content and became more amorphous. The surface morphology of these complexed polymer electrolytes was analyzed by scanning electron microscopy (SEM). Fourier transform infrared spectroscopy (FTIR) spectral studies of the samples suggested that the interaction between H+ ions of oxalic acid and oxygen of the hydroxyl group (OH) of PVA plays a major role in proton conductivity. The optical absorption studies were performed on these samples in a range of wave numbers from 200 nm to 600 nm and the optical band gap values were evaluated. Direct current (DC) conductivity was measured and temperature dependence in the range 27–273°C was studied. It was observed that the conductivity at temperatures beyond the glass transition temperature (Tg) showed a Vogel-Tamman-Fulcher (VTF) type behavior. The electrical conductivity studies on PVA with oxalic acid, in a 70:30 proportion by wt%, demonstrated that the polymer composite is a promising electrolyte for applications in electrochemical cells.
Acknowledgments
The authors thank the Head of the Department of Physics, Osmania University and the Chairman of the Board of Studies in Physics, Osmania University for their constant encouragement and providing experimental facilities for this work. Also, the authors thank the coordinator of the SAP Department of Physics for providing the necessary facilities. One of the authors (KA) thanks the Director, G. Narayanamma, Institute of Technology and Science for his constant encouragement. One of the authors (ARS) thanks the Principal, MVSR College of Engineering for his constant encouragement.
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Articles in the same Issue
- Frontmatter
- Original articles
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- Synthesis and properties of novel high thermally stable polyimide-chrysotile composites as fire retardant materials
- Flame-resistant polymeric composite fibers based on nanocoating flame retardant: thermogravimetric study and production of α-Al2O3 nanoparticles by flame combustion
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- Effect of titanium nanofiller on the productivity and crystallinity of ethylene and propylene copolymer
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- Natural frequency response of laminated hybrid composite beams with and without cutouts
- Characterization of C2H2O4 doped PVA solid polymer electrolyte
- Development and characterization of homo, co and terpolyimides based on BPDA, BTDA, 6FDA and ODA with low dielectric constant
- Highly-filled hybrid composites prepared using centrifugal deposition
- Reinforcement of carboxylated acrylonitrile-butadiene rubber (XNBR) with graphene nanoplatelets with varying surface area
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Articles in the same Issue
- Frontmatter
- Original articles
- Curing kinetics of styrene-(ethylene-butylene)-styrene (SEBS) copolymer by peroxides in the presence of co-agents
- Synthesis and properties of novel high thermally stable polyimide-chrysotile composites as fire retardant materials
- Flame-resistant polymeric composite fibers based on nanocoating flame retardant: thermogravimetric study and production of α-Al2O3 nanoparticles by flame combustion
- Mechanical and morphological properties of high density polyethylene and polylactide blends
- Synthesis and characterization of magnetic Ni0.3 Zn0.7 Fe2 O4/polyvinyl acetate (PVAC) nanocomposite
- Effect of titanium nanofiller on the productivity and crystallinity of ethylene and propylene copolymer
- Mechanical properties of potassium hydroxide-pretreated Christmas palm fiber-reinforced polyester composites: characterization study, modeling and optimization
- Natural frequency response of laminated hybrid composite beams with and without cutouts
- Characterization of C2H2O4 doped PVA solid polymer electrolyte
- Development and characterization of homo, co and terpolyimides based on BPDA, BTDA, 6FDA and ODA with low dielectric constant
- Highly-filled hybrid composites prepared using centrifugal deposition
- Reinforcement of carboxylated acrylonitrile-butadiene rubber (XNBR) with graphene nanoplatelets with varying surface area
- Multiple melting behavior of poly(lactic acid)-hemp-silica composites using modulated-temperature differential scanning calorimetry
