- 알칼리 수전해용 전극에 관한 연구
- ㆍ 저자명
- 최호상,임두순,유철휘,김재철,황갑진,Choi. Ho-Sang,Yim. Doo-Soon,Rhyu. Cheol-Hwe,Kim. Jae-Chul,Hwang. Gab-Jin
- ㆍ 간행물명
- 한국수소 및 신에너지학회 논문집
- ㆍ 권/호정보
- 2012년|23권 2호|pp.117-124 (8 pages)
- ㆍ 발행정보
- 한국수소및신에너지학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Alkaline electrolysis needs the electrode having a low overvoltage and good corrosion resistance in alkaline solution such as KOH and NaOH, for the oxygen and hydrogen production. The commercial materials such as SUS(stainless steel)-316, Ni and NiFe were evaluated for the electrode in alkaline electrolysis. The test solution for the alkaline electrolysis used 1~9M NaOH and 1~9M KOH. The voltage increased with an increase of current density in each solution. As for the 15wt.% (about 5M) NaOH, the voltage of the tested electrode under the current density of 1.8A/$cm^2$ showed the almost same value. The voltage over the current density of 1.8A/$cm^2$ deceased in the order: Ni${fallingdotseq}$NiFe<SUS-316. As for the 30wt.% (about 7M) KOH, the voltage of the tested electrode under the current density of 1.8A/$cm^2$ showed the almost same value. The voltage over the current density of 1.8A/$cm^2$ deceased in the order: NiFe<Ni${fallingdotseq}$SUS-316. From the results, it was estimated that NiFe and Ni was suitable as the electrode for the alkaline water electrolysis using NaOH and KOH electrolyte.