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Park, Young-Bin
Functional Intelligent Materials Lab (FIMLab)
Research Interests
  • Composites
  • Nanocomposites
  • Smart Materials and Structures
  • Carbon Nanomaterials

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Poly(vinyl alcohol)/silica nanoparticles based anion-conducting nanocomposite membrane for fuel-cell applications

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Title
Poly(vinyl alcohol)/silica nanoparticles based anion-conducting nanocomposite membrane for fuel-cell applications
Author
Das, GautamDeka, Biplab Kr.Lee, Seok HeePark, Young-BinYoon, Young Soo
Issue Date
2015-03
Publisher
POLYMER SOC KOREA
Citation
MACROMOLECULAR RESEARCH, v.23, no.3, pp.256 - 264
Abstract
Organic-inorganic heterogeneous hybrid anion conducting membranes were prepared by 1,4-diglycidyl butane ether (DGBE) aided chemical grafting of silica (SiO2) nanoparticles onto poly(vinyl alcohol) (PVA). The membranes properties such as water uptake, thermo-mechanical attributes and ionic conductivity with respect to DGBE and SiO2 loadings were studied extensively. The membrane with composition of 15 wt% DGBE and 3 wt% of SiO2 enhances the tensile strength of PVA by 229%. The ionic conductivity of the membranes was observed to be in the range of 10(-4)-10(-3) Scm(-1) under 100% relative humidity. A linear increase in the ionic conductivity with temperature was demonstrated by all the membranes. The PVA nanocomposites appeared to be a potential candidate for application in alkaline fuel cell.
URI
https://scholarworks.unist.ac.kr/handle/201301/11049
URL
http://link.springer.com/article/10.1007%2Fs13233-015-3033-1
DOI
10.1007/s13233-015-3033-1
ISSN
1598-5032
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