Morphology Effect On Behaviour Of Phosphoricacidin Supramolecular Structured Polymer Membrane Fuel Cell

MORPHOLOGY EFFECT ON BEHAVIOUR OF PHOSPHORICACIDIN SUPRAMOLECULAR STRUCTURED POLYMER MEMBRANE FUEL CELL. Study on the effect of morphology on the conductivity of small molecules added polymer membrane for fuel cell has been done. The polymer electrolyte membrane fuel cell was made by constructing of supramolecular interaction between sulfonated polystyrene and polyethylene-graft-maleic anhydride. The small molecules used was benzimidazole and phosphoric acid. The addition of benzimidazole and phosphoric acid, was espected to improve to ionic conductivity. However, in this work it was observed that morphology of the membrane play vital roles in the final properties of the membrane. In other words, beside concentration of phosphoric acid the morphology affects the conductivity of polymer membrane fuel cell

Sifat Membran Fuellcell Berbasis Polistirena Tersulfonasi (Sps) dengan Penambahan Aditif

SIFAT MEMBRAN FUELLCELL BERBASIS POLISTIRENA TERSULFONASI (sPS) DENGAN PENAMBAHAN ADITIF. Telah dilakukan pembuatan membran fuelcell berbasis polistiren tersulfonasi (sPS) dengan penambahan aditif asam fosfomolibdat dan benzimidazol. Bahan sPS dibuat dengan metode heterogeneus sulfonation. Pembuatan membran dilakukan dengan cara hotpress. Kandungan masing-masing aditif pada membran tidak mempengaruhi proses kerusakan membran apabila membran diekspose pada suhu yang tinggi. Data pengukuran konduktifitas ionik menunjukkan bahwa penambahan additif memberikan kontribusi yang besar di dalam peningkatan sifat konduktif. Namun setiap aditif mempunyai kontribusi yang berbeda terhadap konduktifitas ionik membran, dimana aditif asam fosfomolibdat mempunyai efek yang lebih besar di dalam peningkatan konduktifitas dibandingkan dengan aditif benzimidazol

Roles Of Preparation Method On Characteristics Of Supramolecular-structured Polymer Electrolyte Membrane Fuel Cell Based On Sulfonated Polystyrene

Polymer Electrolyte Membrane Fuel Cell with supramolecular structure based on Sulfonated Polystyrene (S-PS) have been developed in Research Centre for Physics LIPI. In forming the supramolecular structure sulfonate groups in S-PS are aligned with polyethylene-graft-maleic anhydride (PE-g-MA) which carried out by dissolution of the constituent and mixing of both. The alignment of sulfonate groups in s-PS is carried out in a liquid form. Therefore, in this study, the effect of concentration of the solution of both polymers constituent to the alignment of the sulfonate groups and the characteristics of the membrane produced is studied. Scanning ElectronMicroscope (SEM) images showthat allmembranes prepared are rigid. Differential Scanning Calorimetry (DSC) studied show very significance differences in its crystal sizes. XRD diffraction data also support the previous results. Membrane prepared from very dilute solution having better ion exchange capacity (IEC), water uptake and ionic conductivity. Therefore, the experiments results showing that very low concentration of polymer constituent, clearly, produced better interaction of both, which agree with hyphotesis in this work where supramolecular structure can be formed by mixing two very dilute polymer solutions