Catalytic Effects of Heteroatom-doped Graphene Nanosheets on the Performance of Li-O2 Batteries
- Catalytic Effects of Heteroatom-doped Graphene Nanosheets on the Performance of Li-O2 Batteries
- 임희대; 배영준; 윤영수; 강기석
- Issue Date
- Journal of electrochemical science and technology
- VOL 5-52
- Graphene nanosheets (GNS), nitrogen-doped graphene nanosheets (N-GNS), and sulfur-doped graphene nanosheets (S-GNS) were successfully synthesized, and their catalytic effects on the oxygen reduction reaction (ORR) in batteries were compared. The S-GNS electrode exhibited the highest ORR catalytic activity, resulting in enhanced discharge capacity and power capability. We attributed the enhanced ORR catalytic activity to the increased defect sites on graphene.
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