| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
porous fused aromatic pyrazine-based two-dimensional network for stably encapsulating iron nanoparticles as an oxygen reduction electrocatalyst |
| 초록 |
Because of unique features such as low density, structural diversity, chemical and thermal stability. Fused aromatic porous organic networks (FA-PON) have attracted huge interest from the scientific community. Here, we report a new FA-PON synthesized by condensation reaction between hexaketocyclohexanone (HKH) octahydrate and triphenylene hexamine (TPH). The structural elucidation was done by using different techniques, which exhibit the chemical formula of the building block to be C24N6 (C4N), with excellent chemical and thermal stability. Having six nitrogen atoms each hole is capable of efficient fixing and encapsulating iron nano particles, resulting into a durable indirect-contact catalyst for the oxygen reduction reaction (ORR). However, the catalyst exhibits unusual ORR activity with half wave potential of 0.884 V, which is 38 mV positive shift compared to that of commercial Pt/C in alkaline medium. |
| 저자 |
Ishfaq Ahmad, Feng Li, Changmin Kim, 서정민, 김건태, 백종범
|
| 소속 |
UNIST |
| 키워드 |
Fused aromatic Pyrazine-based networks Porous organic networks Encapsulation |
| E-Mail |
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