Structural and morphological changes in supramolecular-structured polymer electrolyte membrane fuel cell on addition of phosphoric acid

Phosphoric acid is one agents used in membrane fuel cell to modify ionic conductivity. Therefore, its distribution in membrane is a key parameter to gain expected conductivity. Efforts have been made to distribute phosphoric acid in a supramolecular-structured membrane prepared with a matrix. To ach...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-03, Vol.985 (1), p.12053
Main Authors: Hendrana, S, Pryliana, R F, Natanael, C L, Rahayu, I
Format: Article
Language:English
Subjects:
Acids
Addition polymerization
Fuel cells
Ion currents
Membrane structures
Morphology
Phosphates
Phosphoric acid
Physics
Proton exchange membrane fuel cells
Reagents
Scanning electron microscopy
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Summary:Phosphoric acid is one agents used in membrane fuel cell to modify ionic conductivity. Therefore, its distribution in membrane is a key parameter to gain expected conductivity. Efforts have been made to distribute phosphoric acid in a supramolecular-structured membrane prepared with a matrix. To achieve even distribution across bulk of the membrane, the inclusion of the polyacid is carried out under pressurized chamber. Image of scanning electron microscopy (SEM) shows better phosphoric acid distribution for one prepared in pressurized state. It also leads in better performing in ionic conductivity. Moreover, data from differential scanning calorimetry (DSC) indicate that the addition of phosphoric acid is prominent in the change of membrane structure, while morphological changes are captured in SEM images.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/985/1/012053