| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-환경·에너지 |
| 제목 |
Development of multi-layer colorimetric hydrogen sensors with visibility and stability |
| 초록 |
Hydrogen is an eco-friendly gas which attracted tremendous interest worldwide as a next generation clean and more efficient energy source. So hydrogen detection technologies such as gasochromic switchable films are continuously required. The commonly known colorimetric hydrogen sensor is fabricated using a sol-gel based solution coating of metal oxide semiconductors, which makes it difficult to control the film thickness, resulting in poor visibility and consistency. In this study, layer-by-layer films were fabricated using poly ethylene-co-vinyl acetate(EVA) as UV blocking film layers and WO3-SiO2 as colorimetric film to improve the visibility and stability of WO3 gas sensors. Compared to the single layered sensor, multi-layered gasochromic hydrogen sensors operated well at room-temperature and had higher visibility as well as increased stability against UV light by introducing EVA films. We have demonstrated visible and stable colorimetric hydrogen sensors at room-temperature. |
| 저자 |
최재욱1, Henok Getachew Girma1, 윤수열1, 전승주1, 이혜민1, 김예진1, 정서현1, 박종목1, 황도훈2, 공호열1, 임보규1
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| 소속 |
1한국화학(연), 2부산대 |
| 키워드 |
hydrogen; gasochromic; UV blocking
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| E-Mail |
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