| 학회 | 한국화학공학회 |
| 학술대회 | 2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 | 20권 1호, p.434 |
| 발표분야 | 에너지 |
| 제목 | Combinatorial High-throughput Optical Screening of High Performance Pd alloy Cathode for Hybrid Li-air battery |
| 초록 | Combinatorial high-throughput optical screening method was developed to find the optimum composition of highly active Pd-based catalysts at the cathode of the hybrid Li-air battery. Pd alone, which is one-third the cost of Pt, has difficulty in replacing Pt; therefore, the integration of other metals was investigated to improve its performance towards oxygen reduction reaction (ORR). Among the binary Pd-based catalysts, the composition of Pd-Ir derived catalysts had higher performance towards ORR compared to other Pd-based binary combinations. The composition at 88 : 12 at. % (Pd : Ir) showed the highest activity towards ORR at the cathode of the hybrid Li-air battery. The prepared Pd88Ir12/C catalyst showed a current density of -2.58 mA/cm2 at 0.8 V (vs. RHE), which was around 30 % higher compared to that of Pd/C (-1.97 mA/cm2). When the prepared Pd88Ir12/C catalyst was applied to the hybrid Li-air battery, the polarization of the cell was reduced and the energy efficiency of the cell was about 30 % higher than that of the cell with Pd/C. |
| 저자 | 박성현 , 우성일 |
| 소속 | KAIST |
| 키워드 | lithium air battery ; oxygen reduction reaction |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
