(광)전기화학 시스템 전극 재료 분석의 기초

• 영문명: The basics of electrode material evaluation in (photo)electrochemical system
• 발행기관: 한국세라믹학회
• 저자명: 지상구(Sang Gu Ji) 최창혁(Chang Hyuck Choi)
• 간행물 정보: 『세라미스트』제23권 제4호, 339~349쪽, 전체 11쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2020.12.30

영문 초록

Investigation of the targeted electrode in (photo)electrochemical system is typically carried out in a conventional three-electrode system, which is comprised of working, counter, and reference electrodes in a batch-type electrochemical reactor. Depending on the nature of targeted electrode, appropriate use of the counter electrode, which balances the charge transfers from the working electrode, is recommended to avoid any contaminations. However, this analytical basic has been often ignored, producing non-negligible but incognizant artifact in experimental results and finally leading to a failure in their correct interpretations. Herein, we highlight the importance of selection on counter electrode and cell configuration for achieving the best practice of (photo)electrochemical investigations with two different model systems, i.e., photoelectrochemical hydrogen evolution reaction (HER) on a p-Si photocathode and electrochemical oxygen reduction reaction (ORR) on a polycrystalline platinum. From the model studies, we further discuss about the suitable electrochemical systems for accurate measurements of (photo)electrode materials.

목차

1. 서론

2. 광전기화학 시스템 내에서 수소 발생 반응 특성 평가

3. Graphite 상대전극에 대한 적합성 평가

4. Pt 작업전극을 기반한 3 전극셀에서 수소발생 및산소환원반응 활성 평가

5. 결론

REFERENCES

키워드

Pt dissolution AgCl leaching graphite counter electrode carbon monoxide poisoning