화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터)
권호 35권 1호
발표분야 고분자 합성
제목 Preparation of Membrane Composite with Mesoporous Inorganic filler for high temperature PEMFC application
초록 To prepare polybenzimidazole(PBI) and mesoporous inorganic filler composite membranes for PEMFC(Polymer electrolyte membrane Fuel Cell), 3,3’-diaminobenzidine was synthesized with pyridine-2,5-dicarboxylic acid. Polyphosphoric acid was used as solvent. And also organic-inorganic composite membranes from PBI and mesoporous inorganic materials were synthesized. The mesoporous inorganic materials were containing specific metal ions. we changed Si/metal ratio of mesoporous inorganic materials. Composite membranes were doped with phosphoric acid. The synthesis of 2,5-PBI was confirmed by a Fourier Transform Infrared Spectroscopy (DIGILAB Co.). We also investigated thermal stability using Thermal Gravimetric Analysis (TA instrument, Q-50) for the composite PBI membranes. The ion conductivity depending on the temperature was measured with an Impedance analyzerand interpreted as a function of the acid content and the weight percent of porous inorganic materials.
저자 최원진, 이민주, 서광원, 남윤희, 조성민, 한학수
소속 연세대
키워드 PBI; inorganic filler; PEMFC
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