Post-synthetic exchange (PSE) of UiO-67 frameworks with Ru/Rh half-sandwich units for visible-light-driven H₂ evolution and CO₂ reduction

Abstract

Four Ru/Rh half-sandwich units are incorporated into UiO-67 frameworks by post-synthetic exchange (PSE) method, and employed for photocatalytic H2 evolution and CO2 reduction.

Encapsulating a Ni(II) molecular catalyst in photoactive metal–organic framework for highly efficient photoreduction of CO2

“…As the dielectric constants of the polar solvents DMF are quite high, the term C could be negligible (Eq. (2)) [43]. As shown in Fig.…”

Recent Advances in Metal–Organic Frameworks for Photo‐/Electrocatalytic CO2 Reduction

“…via ap ost-synthetic exchange (PSE) strategy (Figure 4d). [37] All of the obtained MOFs afforded as uperior light harvesting ability extending to the visible-light region, crucial to photocatalytic reduction.S pecifically,t he obtained MOFs with [MÀOH 2 ]( M= Rh, Ru) (Figure 4e,f)e xhibited higher activity than the MOFs with [MÀCl],o wing to the activation of MOFs by an ion pairing effect. Interestingly, it was found that using different sacrificial agents in photocatalysis led to ad ifferent quenching mechanism (e.g.,o xidative quenching mechanism by TEOA and reduction quenching mechanism by DMA) (Figure 4g,h).…”

“…(h) Reductivequenching mechanism using DMA as the sacrificial agent for photocatalytic reduction of CO 2 . [37] Copyright 2018, Royal SocietyofC hemistry. energy needed for CO 2 reduction and the presence of the competition reaction( e.g.,H ER), which is enhanced with the increased potential.…”

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

“…Thermogravimetric analysis (TGA) reveals that the as-prepared material exhibits better thermal resistance relative to the precursor complex ( Figure 3c,d) [140]. The incorporation of material that has high light-harvesting ability and surplus electron density to Zr-based MOF will provide extraordinary CO 2 reduction capacity of the templet, and the inclusion of Ru-complex in Zr-based MOFs advances the photoinduced reduction and conversion not only by supplying higher oxidation-reduction capacity but also long-lived exciton generation with better charge carrier separation [180,181]. An exemplary Zr-based MOF (AUBM-4, American University of Beirut Materials) embellished with Ru-based ligand has been reported for improved photolytic operation, the catalyst assembly achieved through (Ru(cptpy) 2 ), [bis(4 -(4-carboxyphenyl)-terpyridine)Ru(II)complex] embodiment on the backbone of ZrO 8 cluster [145].…”