Fabrication of PEFC membrane based on perfluorinated polymer using quantum beam induced grafting technique

Oshima, Akira; Sato, Yukiko; Shiraki, Fumiya; Mitani, Naohiro; Fujii, Kazuki; Oshima, Yuji; Fujita, H.; Washio, Masakazu

doi:10.1016/j.radphyschem.2010.07.027

Cited by 9 publications

(1 citation statement)

References 25 publications

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“…However, at the end similar DGs were obtained. The effect of various solvents on the DG of St onto other fluorinated polymers has also been reported. , Both γ-rays and EB were used to initiate the reaction through either the simultaneous irradiation ,, or the preirradiation method. , Grafting with ion beam and proton beam was also used to prepare PEMs in conjunction with preirradiation methods. Figure depicts a schematic representation of the different methods used for the preparation of radiation-grafted fuel cell membranes by both direct irradiation and preirradiation grafting of St followed by sulfonation.…”

Section: Radiation-grafted Membranes For Low Temperature Pemfcmentioning

confidence: 99%

Radiation-Grafted Membranes for Polymer Electrolyte Fuel Cells: Current Trends and Future Directions

2014

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Section: Radiation-grafted Membranes For Low Temperature Pemfcmentioning

confidence: 99%

Radiation-Grafted Membranes for Polymer Electrolyte Fuel Cells: Current Trends and Future Directions

2014

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Fabrication of Function‐Graded Proton Exchange Membranes for Direct Methanol Fuel Cells Using Electron Beam‐Grafting

et al. 2014

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Function‐graded proton exchange membranes (G‐PEMs) based on poly(tetrafluoroethylene‐co‐hexafluoropropylene) were fabricated for direct methanol fuel cells (DMFCs) via electron beam‐grafting using the heterogeneous energy deposition technique. The G‐PEMs had a water uptake gradient in the proton transfer direction, originating from the sulfonic acid group gradient. The distribution of sulfonic acid groups in the various G‐PEMs was evaluated using X‐ray photoelectron spectroscopy. Four types of PEMs (flat‐type, strong‐gradient, meso‐gradient, and weak‐gradient types) were fabricated. By varying the direction of the G‐PEMs, the methanol permeation test and DMFC operation were performed with two orientations of the sulfonic acid group gradient, decreasing from the methanol injection (anode) side (decrease‐type) or the other (cathode) side (increase‐type). The methanol permeability of the strong‐gradient, meso‐gradient, and weak‐gradient G‐PEMs was lower than that of Nafion®117 and the flat‐type PEM. The “increase‐type” orientation of the strong‐gradient G‐PEM resulted in the lowest methanol permeability. The DMFC performance of the G‐PEMs was influenced by the thickness direction, such as “decrease‐type” and “increase‐type.” The performance of the “decrease‐type” assembly was higher than that of the “increase‐type.” The “decrease‐type” assembly with P‐200 k (weak‐gradient G‐PEM) exhibited the highest performance of the fabricated PEMs, comparable to that of Nafion®117.

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PFSA-TiO2(or Al2O3)-PVA/PVA/PAN difunctional hollow fiber composite membranes prepared by dip-coating method

et al. 2012

Iran Polym J

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Fabrication of PEFC membrane based on perfluorinated polymer using quantum beam induced grafting technique

Cited by 9 publications

References 25 publications

Radiation-Grafted Membranes for Polymer Electrolyte Fuel Cells: Current Trends and Future Directions

Radiation-Grafted Membranes for Polymer Electrolyte Fuel Cells: Current Trends and Future Directions

Fabrication of Function‐Graded Proton Exchange Membranes for Direct Methanol Fuel Cells Using Electron Beam‐Grafting

PFSA-TiO2(or Al2O3)-PVA/PVA/PAN difunctional hollow fiber composite membranes prepared by dip-coating method

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