| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
환경·에너지_포스터 |
| 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-coated NCFs (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. The response of the PANi-coated NACFs (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 |
김수현1, 김민지1, 송은지1, 최석순2, 이영석1
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| 소속 |
1충남대, 2세명대 |
| 키워드 |
Gas-sensing; nitrogen-containing carbon fibers; activated carbon fibers; Polyaniline(PANi); Heterojunctions
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| E-Mail |
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