| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.2074 |
| 발표분야 |
촉매 및 반응공학 (Catalysis and Reaction Engineering) |
| 제목 |
Two-dimensional Titanium Carbide MXenes as Oxygen Reduction Reaction Electrocatalysts for Fuel Cells |
| 초록 |
MXenes, with 2D layered structure, possess metallic conductivity, hydrophilicity, and stability suitable for application in electro and photocatalysis. These materials have gathered increasing interest in the 4 electron-driven oxygen reduction reaction (ORR) for the development of polymer electrolyte membrane fuel cells (PEMFC). We assess selected Ti2C and Ti3C2 as highly active and stable catalysts in alkaline media. Dealumination treatments at optimized conditions were first carried out in the presence of HF or LiF in HCl for both Ti2AlC and Ti3AlC2 corresponding parent materials. The treated materials characterized by SEM, ICP, and XRD unveiled the emergence of interplanar mesoporosity following Al etching. The materials were then assessed for ORR compared with KB in 1M KHCO3. Preliminary results showed decreased onset potential and extended current densities, underlying the promising applications of these materials in ORR. Further studies to enhance the catalytic performance, including the coupling of state-of-the-art co-catalysts, are currently under consideration. |
| 저자 |
홍혜지1, Filipe Marques Mota1, Nur Aqlili Riana binti Che Mohamad1, 조원일2, 김동하1
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| 소속 |
1이화여자대, 2KIST |
| 키워드 |
촉매 |
| E-Mail |
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| 원문파일 |
초록 보기 |
