DFT insights into the photocatalytic reduction of CO₂ to CO by Re(i) complexes: the crucial role of the triethanolamine “magic” sacrificial electron donor

Abstract

The reaction mechanism for the photocatalytic reduction of CO2 to CO catalyzed by the [Re(en)(CO)3Cl] complex in the presence of triethanolamine, R3N (R = CH2CH2OH) abbreviated as TEOA in DMF...

A Comprehensive Review on Graphitic Carbon Nitride for Carbon Dioxide Photoreduction

“…[282] As a catalyst, water can work only when the VB of the photocatalyst is greater than the oxidation potential of the water molecule; otherwise, the electrons transferred from the water molecule to its VB will be unproductive. [188,283] In addition to water, triethanolamine (TEOA) has become a remarkably effective sacrificial electron donor for CO 2 RR because it is more easily oxidized than water molecules. [284] Kuriki et al [285] conducted extensive and systematic research to determine the effectiveness of many alternative sacrificial donors, including potassium oxalate, disodium EDTA, and sodium ascorbate, in a Ru-functionalized carbon nitride-based molecular catalyst system to selectively generate HCOOH from CO 2 reduction.…”

“…[ 282 ] As a catalyst, water can work only when the VB of the photocatalyst is greater than the oxidation potential of the water molecule; otherwise, the electrons transferred from the water molecule to its VB will be unproductive. [ 188,283 ] In addition to water, triethanolamine (TEOA) has become a remarkably effective sacrificial electron donor for CO 2 RR because it is more easily oxidized than water molecules. [ 284 ] Kuriki et al.…”

Electronic Effect Promoted Visible-Light-Driven CO2-to-CO Conversion in a Water-Containing System

“…Transition-metal complexes as a kind of molecular catalysts for homogeneous systems have attracted enormous attention due to their clear molecular structures and catalytic active sites, which facilitates the exploration of the relationship between structure and catalytic performance . In recent years, various precious metal (such as Re, − Ir, Au, , and Ru , ) complexes have been employed as molecular catalysts for photocatalytic reduction of CO 2 . Although these kind of complexes usually display excellent photocatalytic performance for CO 2 reduction, − the development of nonprecious metal (such as Co, − Mn, − Ni, , and Fe − ) complex catalysts has become a hot spot due to the high cost of precious metal complexes.…”

Photochemical reduction of CO2 into CO coupling with triethanolamine decomposition

“…Designing effective molecular catalysts has been a key focus in achieving high activity and selectivity for CO 2 reduction. In the past decades, various types of catalysts, such as metal pyridyl complexes, 8,9 metal porphyrin catalysts, 10 metal salen complexes, 11,12 imidazolium salts, 13 and ionic liquids, 14,15 have been developed and shown excellent catalytic activity in homogeneous systems. In these photochemical systems, molecular complexes usually exhibit dual function.…”