| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Hierachical 3D Ti3C2 MXene as Efficient ORR/OER Electrocatalysts for Lithium-Oxygen Batteries |
| 초록 |
High practical specific energy densities up to 2000 Wh kg-1 of Li-O2 battery could match gasoline energy system. The Li-O2 batteries involves oxygen reduction reaction (ORR) during discharge and oxygen evolution reaction (OER) in charging process. In recent years, 2D materials like MXene gained attention due to high electrical, thermal conductivity and the ability to withstand the volumetric expansion during lithiation. To maximize the benefits of MXene, 3D MXene provide larger surface area with high exposed active sites. We investigated the potential of active oxygen vacancies into 3D MXene to speed up Li2O2 production and decomposition by lowering the reaction energy barrier of reversibly discharge products. Coupled electrochemical and spectroscopic analyses disclose the systematic discharge formation and decomposition through the controlled tailoring of active vacancy sites as well as manipulating the morphology of novel 3D MXene network. |
| 저자 |
Nur Aqlili Riana Binti Che Mohamad, 홍혜지, Filipe Marques Mota, 김동하
|
| 소속 |
이화여자대 |
| 키워드 |
MXene; Li-O2 battery; 3D MXene
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| E-Mail |
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