Synthesis of PVA/SiO2 Nanofibers by Electrospinning Method for Supercapacitor Separators

Muhamad Nirwan, Heru Setyawan, Widiyastuti Widiyastuti

Abstract


In this research, polyvinyl alcohol (PVA)/silica nanofibers have been synthesized using electrospinning technique. Solutions of sodium silicate (Na2SiO3) in water and PVA flakes were blended and then processed by electrospinning method to obtain PVA/silica nanofibers. The effect of silica concentration on the resulting morphology and diameter of as-spun nanofibers were investigated by using scanning electron microscopy (SEM). The electrolyte uptake and retention of the as-spun nanofibers were measured. The silica concentration has an effect on the resulting nanofibers, where an increase in silica concentration resulted in a decrease on the diameter of the fibers. The manufactured nanofibers have an average diameter of 200-300 nm. The electrolyte uptake and retention values are also affected by the concentration of the silica in the electrospun solution, with the electrolyte uptake and retention values decreasing with the increase in silica concentration. The best values obtained are 151% for electrolyte uptake and 60% for electrolyte retention, which shows potential for PVA/silica nanofibers as an alternative material for supercapacitor separators.

Keywords


Electrospinning; Nanofiber; Separator; Silica; Supercapacitor

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References


A. González, E. Goikolea, J. A. Barrena, and R. Mysyk, “Review on supercapacitors: Technologies and materials,” Renew. Sustain. Energy Rev., vol. 58, pp. 1189–1206, 2016.M. W. Dobson, “VGI as a Compilation Tool for Navigation Map Databases,” in Crowdsourcing Geographic Knowledge, Dordrecht: Springer Netherlands, 2013, pp. 307–327.

K. Liivand, T. Thomberg, A. Jänes, and E. Lust, “Separator Materials Influence on Supercapacitors Performance in Viscous Electrolytes,” ECS Trans., vol. 64, no. 20, pp. 41–49, 2015.D. J. Bowersox, D. J. Closs, and M. B. Cooper, Supply Chain Logistics Management, 4th ed. New York: McGraw-Hill, 2013.

N. S. M. Nor et al., “Nanoporous separators for supercapacitor using activated carbon monolith electrode from oil palm empty fruit bunches,” AIP Conf. Proc., vol. 1586, no. February, pp. 68–73, 2014.J. Olhager and D. I. Prajogo, “The impact of manufacturing and supply chain improvement initiatives: A survey comparing make-to-order and make-to-stock firms,” Omega, vol. 40, no. 2, pp. 159–165, Apr. 2012.

H. Yu et al., “Using eggshell membrane as a separator in supercapacitor,” J. Power Sources, vol. 206, pp. 463–468, 2012.

H. Zou, S. Wu, and J. Shen, “Polymer/Silica Nanocomposites: Preparation, characterization, propertles, and applications,” Chem. Rev., vol. 108, no. 9, pp. 3893–3957, 2008.M. Cardos, E. Babiloni, M. E. Palmer, and J. M. Albarracin, “Effects on undershoots and lost sales on the cycle service level for periodic and continuous review policies,” in 2009 International Conference on Computers & Industrial Engineering, 2009, pp. 819–824.

T. Pirzada, S. A. Arvidson, C. D. Saquing, S. S. Shah, and S. A. Khan, “Hybrid Silica − PVA Nanofibers via Sol − Gel Electrospinning,” 2012.

L. Ji and X. Zhang, “ Ultrafine polyacrylonitrile/silica composite fibers via electrospinning,” Mater. Lett., vol. 62, no. 14, pp. 2161–2164, 2008.

S. Ramakrishna, K. Fujihara, W. Teo, T. Lim, and Z. Ma, An Introduction to Electrospinning and Nanofibers. 2005.

A. Freyer and N. O. Savage, “Electrospun silica nanofiber mats: Effects of sol viscosity and application to thin layer chromatography,” ACS Symp. Ser., vol. 1183, pp. 139–150, 2014.

M. Yanilmaz, “Evaluation of electrospun PVA / SiO2 nanofiber separator membranes for lithium-ion batteries,” J. Text. Inst., vol. 0, no. 0, pp. 1–6, 2019.




DOI: http://dx.doi.org/10.12962/j23546026.y2020i6.11119

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