| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
환경·에너지_포스터 |
| 제목 |
The degradation characteristics of intermittent operation using an electrode for alkaline electrolysis |
| 초록 |
Renewable energy provides an intermittent operation environment, so the electrodes of water electrolysis need high durability and long life time for hydrogen production. In this study, 3-electrode system prepared using NiZnFe electrodes plated under two different conditions and the degradation characteristics of the electrode were confirmed by the cathodic potential on/off test in the hydrogen generation evolution reaction. The on/off test was operated about 150 cycles in the range of about -1.3 V to 0 V and reverse current occurred in the off step. As a result of LSV(Linear sweep voltammetry) for electrochemical analysis, the HER activity of 80 mA/cm2, 2000 s electrode and 320 mA/cm2, 2000 s electrode decreased about 10% and 15%, respectively. This results show that Zn dissolution and reverse current are related to deactivation. 320 mA/cm2, 600 s electrode is relatively less deactivation and less peeling off coating layer than 80 mA/cm2, 2000 s electrode. |
| 저자 |
한지민1, 김종원1, 배기광1, 박주식1, 정성욱1, 김영호2, 강경수1
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| 소속 |
1한국에너지기술(연), 2충남대 |
| 키워드 |
Intermittent operation; alkaline electrolysis
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| E-Mail |
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