Next Article in Journal
Preparation and Characterization of Starch/Empty Fruit Bunch-Based Bioplastic Composites Reinforced with Epoxidized Oils
Next Article in Special Issue
Influence of Loading History and Soil Type on the Normal Contact Behavior of Natural Sand Grain-Elastomer Composite Interfaces
Previous Article in Journal
Application of Magnetic Concentrator for Improvement in Rapid Temperature Cycling Technology
Article

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

1
Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Tronoh 32610, Malaysia
2
Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
3
Physics Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh 11432, Saudi Arabia
*
Author to whom correspondence should be addressed.
Polymers 2021, 13(1), 92; https://doi.org/10.3390/polym13010092
Received: 3 December 2020 / Revised: 20 December 2020 / Accepted: 23 December 2020 / Published: 28 December 2020
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 × 104 and 7.86 × 103 mScm1 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. View Full-Text
Keywords: composite polymer electrolyte; K2CO3; PVA; SiO2; plasticizer composite polymer electrolyte; K2CO3; PVA; SiO2; plasticizer
Show Figures

Graphical abstract

MDPI and ACS Style

Abdulkadir, B.A.; Ojur Dennis, J.; Al-Hadeethi, Y.; Shukur, M.F.B.A.; Mkawi, E.M.; Al-Harbi, N.; Ibnaouf, K.H.; Aldaghri, O.; Usman, F.; Abbas Adam, A. Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite. Polymers 2021, 13, 92. https://doi.org/10.3390/polym13010092

AMA Style

Abdulkadir BA, Ojur Dennis J, Al-Hadeethi Y, Shukur MFBA, Mkawi EM, Al-Harbi N, Ibnaouf KH, Aldaghri O, Usman F, Abbas Adam A. Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite. Polymers. 2021; 13(1):92. https://doi.org/10.3390/polym13010092

Chicago/Turabian Style

Abdulkadir, Bashir A., John Ojur Dennis, Yas Al-Hadeethi, Muhammad F.B.A. Shukur, E. M. Mkawi, Nuha Al-Harbi, K. H. Ibnaouf, O. Aldaghri, Fahad Usman, and Abdullahi Abbas Adam. 2021. "Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite" Polymers 13, no. 1: 92. https://doi.org/10.3390/polym13010092

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop