| 세션명 | Graduate Student Oral Session (I) (English) |
|---|---|
| 발표장 | 제9회장 |
| 논문코드 | 1O9-15 |
| 발표일 | 2021-10-21 |
| 발표시간 | 17:40-17:55 |
| 논문제목 | Block Copolymer-based Nanostructured Carbon Substrate for Anchoring Pt-Single Atom as Highly Efficient Electrocatalysts |
| 발표자 | Mohammad Aftabuzzaman |
| 발표자 소속 | Korea University |
| 저자 | Mohammad Aftabuzzaman, 김환규† |
| 소속 | Korea University |
| 논문초록 | We have fabricated a three-dimensional hierarchical porous carbon (3D-HPC) substrate from poly(butyl acrylate)-b-polyacrylonitrile (PBA-b-PAN) block-copolymer, which contain interconnected mesopores/micropores and N-heteroatom. This distinct feature helps to disperse Pt single atom uniformly all over the matrix. The as-prepared Pt-single atom at 3D-HPC (Pt1-3D-HPC) displays exceptional catalytic properties towards oxygen and tri-iodide reduction reaction. The Pt1-3D-HPC electrode exhibit low charge transfer resistance and enhanced power conversion efficiency as counter electrode compared to reference electrode (Pt). Also, Pt1-3D-HPC electrode exhibit the improved catalytic perfotmance towards oxygen reduction reaction, with higher Eonset (1.11 V), E1/2 (0.89 V) and diffusion limiting current compared to reference 20% Pt/C electrode (Eonset,1.05 V and E1/2, 0.89 V). |
THE POLYMER SOCIETY OF KOREA