Recent advances in electrochemical meso- and β-functionalization of porphyrins and electrografting of diazonium porphyrins

Homogeneous and heterogeneous molecular catalysts for electrochemical reduction of carbon dioxide

“…98,126 The direct connections that arise from these methods are believed to be the primary factor in increasing the reaction rate of CO 2 RR relative to hydrogen evolution reactions (HERs) and lowering overpotentials. 125,[127][128][129][130][131] Using this technique, immobilization of terpyridine onto glassy carbon electrodes has been previously reported. 66 Marianov et al 121 have also successfully electrograed amino porphyrins via electro reduction of diazonium salt onto glassy carbon (Scheme 2).…”

A2B2-Type Zinc(II) Porphyrin-Modified Organic Polymers with Flexible Linkers for Efficient Fixation of CO2 to Cyclic Carbonate

“…Generally, an outstanding polymer catalyst for CO 2 cycloaddition must have abundant active sites (Lewis acids and nucleophiles) and, preferably, these active sites can be more exposed. In order to satisfy the former, porphyrin with excellent metal coordination ability, high CO 2 affinity, structural tunability, and thermal stability was usually selected as the monomer. − Particularly, zinc(II) porphyrins have been extensively reported for this cycloaddition reaction. − For the latter, a rigid small monomer was selected as a connector or a nanoporous material to load the polymer for increasing the specific surface area, thus increasing the number of well-exposed active sites. Liu et al reported several nitrogen-rich frameworks M ⊂ PPTFs integrated by metalloporphyrin and rigid triazine .…”