A Highly Selective Novel Green Cation Exchange Membrane Doped with Ceramic Nanotubes Material for Direct Methanol Fuel Cells

Marwa H. Gouda, Tamer M. Tamer and Mohamed S. Mohy Eldin
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Marwa H. Gouda: Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
Tamer M. Tamer: Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
Mohamed S. Mohy Eldin: Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt

Energies, 2021, vol. 14, issue 18, 1-11

Abstract: Herein, a pair of inexpensive and eco-friendly polymers were blended and formulated based on poly (ethylene oxide) (PEO) and poly (vinyl alcohol) (PVA). FTIR, XRD, EDX and TEM techniques were used to describe a Phosphated titanium oxide (PO 4 TiO 2 ) nanotube synthesised using a straightforward impregnation-calcination procedure. For the first time, the produced nanoparticles were inserted as a doping agent into this polymeric matrix at a concentration of (1–3) wt.%. FTIR, TGA, DSC and XRD were used to identify the formed composite membranes. Furthermore, because there are more hydrogen bonds generated between the polymer’s functional groups and oxygen functional groups PO 4 TiO 2 , oxidative stability and tensile strength are improved with increasing doping addition and obtain better results than Nafion117. The permeability of methanol reduced as the weight % of PO 4 TiO 2 increased. In addition, the ionic conductivity of the membrane with 3 wt.% PO 4 -TiO 2 is raised to (28 mS cm −1 ). The optimised membrane (PVA/PEO/PO 4 TiO 2 -3) had a higher selectivity (6.66 × 10 5 S cm −3 s) than Nafion117 (0.24 × 10 5 S cm −3 s) and can be used as a proton exchange membrane in the development of green and low-cost DMFCs.

Keywords: proton exchange membrane; poly (vinyl alcohol); poly (ethylene oxide); titanium oxide; direct methanol fuel cell; fuel cell (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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