| 학회 | 한국공업화학회 |
| 학술대회 | 2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 22권 2호 |
| 발표분야 | 무기재료_포스터 |
| 제목 | Monitoring Activity and Stability of NiFe-based Catalysts for Oxygen Evolution Reaction in Alkaline Electrolyte |
| 초록 | As environmental pollution becomes more serious, interest in use of hydrogen energy has been recently increased. Among various methods to produce hydrogen energy, water electrolysis has advantages to obtain high purity hydrogen. Many studies on non-noble metal based catalysts for OER have been conducted in alkaline condition. In recent years, studies on spinel structures such as NiCo2O4 and CoFe2O4 nano sheet report that their high OER activity is originated from higher oxygen vacancy ratio. In this study, NiFe-O, NiFe-OP, NiFe-OB and NiFe-OS catalysts were prepared by electrodeposition on carbon paper. Their composition and morphology were controlled by electrodeposition conditions. During the OER activity measurement by chrono amperometry, electrochemical surface was monitored. Based on the obtained OER intrinsic activity, it was confirmed that the NiFe-OS catalyst showed the highest catalytic performance owing to its highest ratio of oxygen vacancy. |
| 저자 | 김현기, 김준형, 김주영, 안상현 |
| 소속 | 중앙대 |
| 키워드 | Electrodeposition; Oxygen evolution reaction; NiFe-based materials; Oxygenvacancy; Intrinsic activity |
