Interfacial Frustrated Lewis Pairs of CeO₂ Activate CO₂ for Selective Tandem Transformation of Olefins and CO₂ into Cyclic Carbonates

Abstract

Effective activation of CO2 is a prerequisite for efficient utilization of CO2 in organic synthesis. Precisely controlling the interfacial events of solids shows potential for activation. Herein, defect-enriched CeO2 with constructed interfacial frustrated Lewis pairs (FLPs, two adjacent Ce3+···O2–) effectively activates CO2 via the interactions between C/Lewis basic lattice O2– and the two O atoms in CO2/two adjacent Lewis acidic Ce3+ ions. Selective cyclic carbonate production from a catalytically tandem protocol of olefins and CO2 is used to demonstrate FLP-inspired CO2 activation.

Tracking structural evolution: operando regenerative CeOx/Bi interface structure for high-performance CO2 electroreduction

“…44-1246: Bi; JCPDS No. 34-0394: CeO 2 ), respectively [ 6 , 23 , 24 ]. The results indicated that the BiOCl was converted into metallic Bi, and the CeO 2 was apparently unchanged.…”

Incorporation of nickel single atoms into carbon paper as self-standing electrocatalyst for CO2reduction

“…3,4 However, many challenges still remain before achieving high efficiency conversion due to the inert nature of CO2. 5 Furthermore, the hydrogen evolution reaction (HER) is kinetically more favorable and therefore competes with eCO2RR in aqueous media. 6,7 To overcome these problems, electrocatalysts with high selectivity and efficiency are highly demanded.…”

Homogeneous and Heterogeneous Ionic Liquid System: Promising “Ideal Catalysts” for the Fixation of CO2 into Cyclic Carbonates

“…The huge energy consumption of the separating process restrains the development of homogenous catalysts in industry. In consequence, heterogeneous catalysts for the CO 2 cycloaddition reaction are receiving more attentions gradually in recent years, which include metal organic frameworks (MOFs), [29][30][31] covalent organic frameworks (COFs), [32][33] Ndoped porous carbon materials, [34][35] polymers, [36] layered double hydroxides (LDH), [37] defective metal oxides, [38] ionexchange resins, [39] poly(ionic liquids) (PILs) [40][41][42] and supported ionic liquids (SILs). [43] Traditional heterogeneous catalysts can be separated from products facilely, but the catalytic efficiency is relatively low.…”