| 세션명 | 대학원생 구두발표 (II) |
|---|---|
| 발표장 | 제10회장 (105) |
| 논문코드 | 1O10-5 |
| 발표일 | 2018-10-11 |
| 발표시간 | 14:30-14:45 |
| 논문제목 | Highly Conductive and Alkaline-stable Nanocomposite Membrane for Anion Exchange Membrane Fuel Cell |
| 발표자 | 최승영 |
| 발표자 소속 | 서강대학교 |
| 저자 | 최승영, 이희우† |
| 소속 | 서강대학교 |
| 논문초록 | To improve conductivity and alkaline stability of anion exchange membrane (AEM), we prepared novel nanocomposite membranes based on FAA-3 with trimethyl aminated octaphenyl polyhedral oligomeric silsesquioxane (TMA-POSS). Nanoscale TMA-POSS (1~2 nm) was distributed inside a nanochannel of FAA-3 matrix, and provided additional anion source for increased conductivity. Moreover, TMA-POSS facilitated more absorption of water, leading to increased size of nanochannel up to 10% by SAXS. In consequence, the anion conductivity of nanocomposite membranes increased up to 17% at 80 oC/100% RH. However, the anion conductivity decreased gradually above 3 wt% concentration even though it possessed larger nanochannel size, which was highly related to the aggregation of nanoparticles. In addition, we designed TMA-POSS to contain bulky phenyl group near to cation, thereby creating a steric hindrance effect. Therefore, nanocomposite membranes retained 90.4% conductivity after alkaline stability test. |
THE POLYMER SOCIETY OF KOREA