| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_환경·에너지 |
| 제목 |
Improvement of NO gas-sensing properties using heterojunctions between polyaniline and nitrogen-containing carbon fibers |
| 초록 |
The effect of heterojunctions between polyaniline (PANi) and nitrogen-containing carbon fibers (NCFs) on NO gas-sensing properties was investigated, and the influence of the heterojunction area on the NO gas-sensing performance was confirmed. We prepared NCFs and nitrogen-containing activated carbon fibers (NACFs) from polyacrylonitrile fibers and then coated them with PANi so they could be used as gas-sensing materials. In the NO gas-sensing tests, the NCFs and pristine PANi exhibited p-type behavior with decreased responses over time, and the PANi/NCFs exhibited different behavior with a very high response (281.0%). This high response can be attributed to the formation of p-p heterojunctions at the interfaces between the PANi and NCFs caused by the graphitic nitrogen in the NCFs. Moreover, the response of the PANi/NACFs was 2.2 times that of the PANi/NCFs, which is due to the activation of NCFs increasing the p-p heterojunction area of the PANi/NACFs. |
| 저자 |
김민지1, 송은지1, 김경훈1, 최석순2, 이영석1
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| 소속 |
1충남대, 2세명대 |
| 키워드 |
Gas-sensing; nitrogen-containing carbon fibers; activated carbon fibers; Polyaniline(PANi); Heterojunctions |
| E-Mail |
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