Recent developments on the transformation of CO₂utilising ligand cooperation and related strategies

Abstract

A portfolio of value-added chemicals, fuels and building block compounds can be envisioned from CO2 on an industrial scale. The high kinetic and thermodynamic stabilities of CO2, however, present a...

Efficient separation of CO2 from CH4 and N2 in an ultra-stable microporous metal–organic framework

“…Carbon dioxide (CO 2 ) is deemed the main long-acting greenhouse gas causing an increase in global temperature, and the concentration of CO 2 in the troposphere has exceeded 400 ppm. 1 The use of fossil fuels as the main energy resource leads to the artificial emission of large amounts of CO 2 . The efficient post-combustion capture of CO 2 from flue gas mainly composed of CO 2 /N 2 in coal-fired power plants is one of the effective strategies used to reduce carbon emissions.…”

Hydroxypyridine/Pyridone Interconversions within Ruthenium Complexes and Their Application in the Catalytic Hydrogenation of CO2

“…The interconversions between the 6-D i PPin and 6-D i PPon* ligand forms offer potential for the activation of small molecules via metal–ligand cooperative mechanisms. It was therefore of interest to explore the catalytic reactivity of these complexes for the hydrogenation of CO 2 . − In accordance with typically utilized reaction conditions, the application of complex 1 or [ 2 ] OTf for the catalytic hydrogenation of CO 2 in the presence of a base was investigated. DBU was chosen as the base to provide [DBU + H]­[OC­(O)­H] as the reaction product (Table ).…”

“…To explore the aforementioned concepts further, we undertook a study focused on exploring the reactivity and catalytic potential of a new derivative of 6-PPon . The synthesis of CO 2 -derived molecules is an area of research that is greatly significant. − One strategy has looked at the hydrogenation of CO 2 to formate salts in the presence of various bases. To the best of our knowledge, the 6-PPon ligand systems have not been explored for their application in the hydrogenation of CO 2 .…”

Regulating the d-band electrons of the Fe–N–C single-atom catalyst for high-efficiency CO2 electroreduction by electron-donating S-doping

“…[4][5][6] Developing advanced energy conversion methods with simple operation and mild reaction conditions could realize the efficient utilization of renewable energy. [7][8][9] Electrochemical conversion of CO 2 to chemicals can not only alleviate the "greenhouse" effect, but also produce value-added products, which shows great potential in achieving carbon neutrality. [10][11][12] However, the CO 2 electroreduction reaction (CO 2 RR) faces grand obstacles due to the sluggish reaction kinetics and competing hydrogen evolution reaction (HER).…”