Metal organic framework-ionic liquid hybrid catalysts for the selective electrochemical reduction of CO2 to CH4

The Role of Glyoxal as an Intermediate in the Electrochemical CO2 Reduction Reaction on Copper

“…Ethylene glycol has also been identified as an economically viable CO 2 RR product based on the levelized cost calculations of Bushuyev et al . Furthermore, in our recent work on MOF-RTIL hybrid catalysts, both glycolate (another possible glyoxal-derived product) and ethylene glycol were observed in the 1 H NMR spectrum of the electrolyte after CO 2 electrolysis . This study aims to identify and analyze the mechanism of C 2+ product formation from the electroreduction of glyoxal on copper.…”

“…Its role as an intermediate has been analyzed using DFT calculations, with some groups calculating that its electrochemical reduction leads to ethanol ,, or ethylene formation . Some studies, however, have calculated that it is a side product, not an intermediate, of CO 2 RR. , Experimental evidence of its mechanistic role, however, remains limited as most experimental studies only focus on its reduction to ethanol and/or acetaldehyde. , The reduction mechanism of glyoxal is increasingly relevant today because many studies have recently observed the formation of ethylene glycol, − a possible glyoxal-derived reduction product, during CO 2 reduction. Ethylene glycol has also been identified as an economically viable CO 2 RR product based on the levelized cost calculations of Bushuyev et al .…”

“…Ethylene glycol has also been identified as an economically viable CO 2 RR product based on the levelized cost calculations of Bushuyev et al 27 Furthermore, in our recent work on MOF-RTIL hybrid catalysts, both glycolate (another possible glyoxal-derived product) and ethylene glycol were observed in the 1 H NMR spectrum of the electrolyte after CO 2 electrolysis. 24 This study aims to identify and analyze the mechanism of C 2+ product formation from the electroreduction of glyoxal on copper. Multiple reaction pathways are observed during the electroreduction of glyoxal, including its electrochemical reduction to C 2 aldehydes and alcohols, its disproportionation, and its carbon−carbon coupling to produce C 4 compounds.…”

Controllable synthesis of magic cube-like Ce-MOF-derived Pt/CeO2 catalysts for formaldehyde oxidation

“…Metal–organic frameworks (MOFs), as a kind of coordination complex, have become excellent catalysts and/or templates due to their rich and adjustable metal centers, uniform pore sizes and environments, highly ordered porous structures, and high surface areas. 11–15 Similar to those of inorganic materials ( e.g. , noble metals, metal oxides), the morphology-controlled synthesis for MOFs is of great significance, not only to deepen the understanding of its crystal nucleation and growth mechanism but also to deliver unique structural features to its derived metal oxides.…”

(Bio)Sensing Strategies Based on Ionic Liquid-Functionalized Carbon Nanocomposites for Pharmaceuticals: Towards Greener Electrochemical Tools

“…The improvement in ILs over the generations made it possible to develop compounds with electrical conductivity (0.1–20 mS [ 14 ]) and electrochemical stability (potential window ≤ 5.0 V [ 15 , 16 ]) uncommon in conventional electrolytes. Consequently, the electrochemical applications of these materials have grown dynamically and intensely in recent decades, showing usefulness in electrosynthesis [ 17 ], electrocatalysis [ 15 ], CO 2 capture and reduction [ 18 , 19 ], solid-state electrolytes [ 17 ], corrosion inhibitors [ 20 ], batteries, supercapacitors, fuel cells, (bio)sensors [ 3 , 7 , 10 ], among other cutting-edge technology systems. For electrochemical (bio)sensors, important advances have been made in designing, developing, and implementing devices and methods that reduce or eliminate hazardous chemicals in the environment.…”