광전기화학적 물 분해를 위한 Bi 기반의 금속유기복합체가 도포된 BiVO₄ 광전극

• 영문명: Bi-Based Metal-Organic Framework Decorated BiVO4 Photoelectrode for Photoelectrochemical Water Splitting
• 발행기관: 한국세라믹학회
• 저자명: 김승규(Seungkyu Kim) 이상한(Sanghan Lee)
• 간행물 정보: 『세라미스트』제25권 제1호, 4~14쪽, 전체 11쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2022.03.30

영문 초록

Decoration of metal-organic frameworks (MOFs) is emerging as attractive co-catalysts for effective photoelectrochemical (PEC) water oxidation. In this work, we report Bi-based MOF nanoparticle decorated BiVO₄ thin film via a multi-step immersion process for efficient PEC water oxidation. Bi-MOF on the surface improves active sites and promotes surface charge transport under PEC reaction. The PEC performance of our Bi-MOF/BiVO₄ electrode is 2 times higher than that of the bare BiVO₄ sample. In addition, the operation stability was significantly improved and its value is retained even after 24 h. These results reveal that Bi- based MOF decoration is an attractive strategy to improve the surface kinetics and stability as a co-catalyst and passivation layer for efficient water oxidation.

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키워드

Photoelectrochemical (PEC) cells BiVO₄ Metal-Organic Frameworks (MOF) Water oxidation