Performance of polymer nano composite membrane electrode assembly using Alginate as a dopant in polymer electrolyte membrane fuel cell

8th International Conference on Physics and its Applications

Mulijani, S.^1

Department of Chemistry, Bogor Agriculture University, Darmaga Campus, Indonesia^1

关键词: Carbon catalysts;    Composite polymer;    Impedance spectrometry;    Membrane electrode assemblies;    Polymer membrane;    Polymer nanocomposite;    Porous structures;    Sulfonated polystyrene;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012104/pdf
DOI  :  10.1088/1742-6596/776/1/012104

来源: IOP

【 摘 要 】

Polymer membrane and composite polymer for membrane electrode assembly (MEAs) are synthesized and studied for usage in direct methanol fuel cell (DMFC). In this study, we prepared 3 type of MEAs, polystyrene (PS), sulfonated polystyrene (SPS) and composite polymer SPS-alginat membrane via catalyst hot pressed method. The performance and properties of prepared MEAs were evaluated and analyzed by impedance spectrometry and scanning electron microscopy (SEM). The result showed that, water up take of MEA composite polymer SPS-alginate was obtained higher than that in SPS and PS. The proton conductivity of MEA-SPS-alginate was also higher than that PS and PSS. SEM characterization revealed that the intimate contact between the carbon catalyst layers (CL) and the membranes, and the uniformly porous structure correlate positively with the MEAs prepared by hot pressed method, exhibiting high performances for DMFC.