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Potassium fluoride-induced FeOOH formation in NiFe oxalate for improved oxygen evolution performance
- Ha, Seungjoon;
- Kim, Youngji;
- Kim, Taeyeop;
- Jeong, Seongwoo;
- Ryu, Gyeong Hee;
- 외 1명
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1초록
Our study introduces a facile synthetic route for the in situ formation of nickel (Ni)-iron (Fe) oxyhydroxide from NiFe oxalate. By adding potassium fluoride (KF) to the synthetic solution, we achieved a predominant surface distribution of Fe (>80 at%) while limiting its bulk incorporation compared to solutions without KF. Operando Raman spectroscopy analysis confirms that the enriched Fe predominantly exists as FeOOH. Our optimized catalyst demonstrates significant efficiency, achieving a current density of 10 mA cm−2 at a notably low overpotential of 226 mV. © 2024 The Royal Society of Chemistry.
- 제목
- Potassium fluoride-induced FeOOH formation in NiFe oxalate for improved oxygen evolution performance
- 저자
- Ha, Seungjoon; Kim, Youngji; Kim, Taeyeop; Jeong, Seongwoo; Ryu, Gyeong Hee; Lee, Seunghwa
- 발행일
- 2024-06
- 유형
- Article
- 권
- 60
- 호
- 53
- 페이지
- 6781 ~ 6784