| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
High-sensitivity hydrogen gas sensors based on Pd-decorated nanoporous poly(aniline-co-aniline-2-sulfonic acid):poly(4-styrenesulfonic acid) |
| 초록 |
We report a novel method for fabricating Pd-decorated nanoporous poly(aniline-co-aniline-2-sulfonic acid):poly(4-styrenesulfonic acid) (P(ANI-co-ASA):PSS) nanostructures and demonstrate their use as sensing elements for hydrogen (H2) gas sensors. Both co-monomers and PSS provide sufficient –SO3H groups to effectively anchor palladium nanoparticles and lead to enhanced interactions with H2 gas, while retaining the charge transport properties of the P(ANI-co-ASA):PSS. The pores were 10–30 nm in diameter and were readily formed on the Pd-decorated P(ANI-co-ASA):PSS surfaces by introducing water-soluble porogen agents. The pores enlarged the surface area available for interaction with the H2 gas molecules, resulting in much higher sensitivity compared with both the non-porous Pd-decorated P(ANI-co-ASA):PSS and the pristine P(ANI-co-ASA):PSS. We achieved a detection limit of 5 ppm for H2 gas using a conducting polymer at room temperature. |
| 저자 |
조성훈, 장정식
|
| 소속 |
서울대 |
| 키워드 |
polyaniline; conducting polymer; chemical sensor; hydrogen gas; nanostructure; Pd nanoparticle
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| E-Mail |
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