| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.917 |
| 발표분야 |
촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 |
Scalable Synthesis of N-doped Porous Carbon Network with a Multidirectional Structure as a Highly Efficient Metal-Free Catalyst for the Oxygen Reduction Reaction |
| 초록 |
Metal-free catalysts have gained substantial attention as a promising candidate to replace the expensive platinum (Pt) catalysts for the oxygen reduction reaction (ORR). Development of highly efficient and mass-producible N-doped carbon catalysts, however, remains to be a great challenge. In this study, N-doped porous carbon (NPC) materials were synthesized via a simple, cost-effective and scalable method for mass production by using the D-gluconic acid sodium salt, pyrrole, Triton X-100 and KOH. The resulting NPC possessed a multidirectional porous carbon network (SBET: 1026.6 m2 g−1, Vt: 1.046 cm3 g−1) with hierarchical porosity and plenty of graphitic N species (49.1%). Electrochemical tests showed that the NPC itself was highly active for the ORR under alkaline and acidic conditions via a four electron pathway with highly improved long-term durability and methanol tolerance. |
| 저자 |
한현수, 노유성, 배재진, 이승준, 김예규, 안현우, 장대희, 김원배
|
| 소속 |
포항공과대 |
| 키워드 |
촉매 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
