광전기화학적 물 분해를 위한 Bi 기반의 금속유기복합체가 도포된 BiVO₄ 광전극

Bi-Based Metal-Organic Framework Decorated BiVO4 Photoelectrode for Photoelectrochemical Water Splitting

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.