Nanocomposite Membranes Comprising Crosslinked Polymer Blends of Poly(vinyl alcohol)/Poly(styrene sulfonic acid-co-maleic acid) and Fumed Silica Nanoparticles

作者：Kang Moon Sung; Kang Yong Soo; Kim Hyoung Juhn; Han Hak Soo; Park Jin Soo^*

来源：Journal of Nanoscience and Nanotechnology, 2018, 18(3): 1657-1664.

DOI：10.1166/jnn.2018.14213

• Nanocomposite Polymer Electrolyte Membranes
• Fumed Silica
• Hydrolytic Stability
• Fuel Cells

Nanocomposite polymer electrolyte membranes comprising a crosslinked polymer blend of poly(vinyl alcohol)/poly(styrene sulfonic acid-co-maleic acid) (PVA/PSSA-co-MA) and fumed silica nanoparticles were prepared for direct methanol fuel cell (DMFC) applications. Silica nanoparticles could be incorporated well uniformly in the completely miscible system, which can form a three-dimensional network structure to achieve the enhancement of mechanical properties as well as the additional reduction of methanol permeability. The optimized proton conductivities and methanol permeability of the PVA/PSSA-co-MA membrane with silica nanoparticles of 10 wt.% were 0.0482 S cm(-1) at room temperature and 5.78x10(-7)cm(2) s(-1) at the methanol concentration of 40% (w/w), respectively.

• 出版日期2018-3