화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔)
권호 12권 1호, p.894
발표분야 재료
제목 Nafion/Polypyrrole/Pt Composite Membrane for Fuel Cells: A Facile Route to Incorporate Conducting Polymer/Inorganic Metal into Ionic Conducting Polymer and Its Characterization
초록 We modified Nafion by means of chemical in-situ polymerization of Pt-anchored pyrrole monomers for fuel cell membrane. After Pt-anchored pyrrole monomers were in-situ polymerized in Nafion matrix, nanoparticles of ca. 40-80 nm were dispersed. XPS and FT-IR was used to characterize the modified membranes, demonstrating that positively pyrrole monomers played a role of linking Nafion with Pt precursor via mutual interaction. The polymerization site of pt anchored pyrrole monomer was controlled via mutual interaction by controlling concentration of pyrrole monomer, resulting in good physical and transport properties for fuel cells.
Thermal stability, proton conductivity, methanol permeability, and cell performance were analyzed for application in fuel cells. The physical and transport properties of Nafion were influenced by the changes in the morphology at surface via mutual interaction between incorporated nanoparticles and Nafion matrix.
저자 박호석1, 김여진2, 임현숙1, 홍원희1
소속 1한국과학기술원, 2LG 기술(연)
키워드 Nafion/Pt/Ppy composite; polymerization site; transport properties; physical properties
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