| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
| 권호 |
18권 1호, p.38 |
| 발표분야 |
고분자 |
| 제목 |
Preparation and characterization of nanocomposite membranes assisted by ATRP and sol–gel process for polymer electrolyte membrane fuel cells |
| 초록 |
Proton conducting nanocomposite membranes consisting of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(styrene sulfonic acid), i.e., P(VDF-coCTFE)-g-PSSA graft copolymer and functionalized silica by sulfonated group. These were prepared through a sol–gel reaction and subsequent oxidation of a silica precursor, i.e., (3-mercaptopropyl) trimethoxysilane (MPTMS). The functionality of nanocomposite membranes was investigated by the FT-IR to confirm the each based material function group. The amorphous character was checked via the XRD. Furthermore, the well dispersed 5-10nm sized silica particles in nanocomposite membrane with 5 wt% MPTMS was observed in transmission electron microscopy and small-angle X-ray scattering analysis. Upon higher concentration of MPTMS in the composite, the silica sized grew too high to disrupt the micro-separated structure of the graft copolymer. As a result, the maximum values at 5wt% MPTMS were recorded that proton conductivity was 0.12 S/cm at 25 °C and single cell performance was 1.0 W/cm 2 at 75 °C. |
| 저자 |
노동규, 지원석, 김상진, 라즈쿠마 파텔, 김종학
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| 소속 |
연세대 |
| 키워드 |
dye-sensitized solar cells |
| E-Mail |
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| 원문파일 |
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