Site-isolated manganese carbonyl on bipyridine-functionalities of periodic mesoporous organosilicas: efficient CO₂ photoreduction and detection of key reaction intermediates

Abstract

Robust heterogeneous bipyridine-based periodic mesoporous organosilica manganese catalysts are highly active for CO2 photoreduction.

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

“…For further fostering solar irradiation harvesting, MOFs may be coupled with photosensitizers (PSs). PSs are illumination-sensitive materials that have compatible band edge alignment to MOFs' structure with the lowest possible CB to assist hot multi-exciton injection to active catalytic sites [127,128]. On the other hand, materials will be incorporated into the morphological texture of MOFs to advance the physical adsorption capacity of the void crew.…”

Electrochemical/Photochemical CO2 Reduction Catalyzed by Transition Metal Complexes

“…The molecular catalysts can be utilized to develop the heterogeneous catalysts. For photocatalysts of CO 2 reduction, combining the molecular catalysts with semiconductor [32,94,95], metalorganic frameworks (MOFs) [96,97] or periodic mesoporous organosilicas (PMOs) [98][99][100][101] are actively researched. We have also developed a novel PMO consisting of 2,2′-bipyridyl framework by introducing two different ruthenium complexes as a photosensitizing site (Ru(PS)) and a catalytic site (Ru(Cat)) as shown in Figure 15 [99].…”

A bioinspired molybdenum–copper molecular catalyst for CO2 electroreduction

“…[1][2][3] Their molecular nature enables providing key structural and mechanistic information to rationally design more complex heterogeneous catalysts. [4][5][6][7][8][9][10][11][12][13] However, efficient molecular catalysts for CO 2 reduction based on non-noble metals are still scarce. 2,3 Among them, Ni-cyclams, 14,15 Co phthalocyanine and Feporphyrins, 16,17 have been discovered decades ago and only a few new members were recently reported, namely Mn(bpy)(CO) 3 Br, 18 Fe-quaterpyridine, 19 Fe 4 N(CO) 12 20 and Co diphosphine complexes.…”