Cover Picture: Alumina‐Supported Alpha‐Iron(III) Oxyhydroxide as a Recyclable Solid Catalyst for CO₂ Photoreduction under Visible Light (Angew. Chem. Int. Ed. 26/2022)

Abstract

An iron‐based oxyhydroxide catalyst was developed for CO2 photoreduction into formic acid. As reported by Kazuhiko Maeda et al. in their Communication (e202204948), α‐iron(III) oxyhydroxide, which is an easily available soil mineral, was loaded onto an alumina support and then serves as a recyclable catalyst for the CO2 reduction reaction, showing 80–90 % selectivity and an apparent quantum yield of 4.3 % at 460 nm in the presence of a ruthenium(II) photosensitizer and an electron donor.

S‐Scheme Co9S8@Cd0.8Zn0.2S‐DETA Hierarchical Nanocages Bearing Organic CO2 Activators for Photocatalytic Syngas Production

“…[ 1,2 ] Photocatalytic conversion of CO 2 into energy‐rich products, for example, CO, is thus actively pursued since its ability to address the environmental and energy issues concurrently by lowering CO 2 emission and providing carbon fuels. [ 3,4 ] Of note, it is more attractive if such a CO photosynthesis process is accompanied by H 2 formation to make the syngas, which is highly desirable in Fischer–Tropsch synthesis and industrially produced via energy‐intensive reactions. [ 5 ] Despite the great potential, the efficiency of current photocatalytic CO 2 reductions is still unsatisfied, due mainly to insufficient activation of CO 2 molecules and easy recombination of charge carriers, [ 6,7 ] both of which restrict the reaction kinetics seriously.…”

Benzimidazolium‐Decorated Metalloporphyrin Molecule and Polymer: a Reliable Preparation Method and Application in Catalyzing the Cycloaddition Reaction of CO2and Epoxides

“…The conversion of carbon dioxide into useful chemicals is consistent with green and sustainable development strategies [1,2] . In recent years, some research achievements such as the conversion of carbon dioxide to MeOH, CH 4 , HCOOH, CO, urea, and organic carbonate have been reported [3–8] . The cycloaddition reaction of carbon dioxide and epoxides is one of the most effective methods of the conversion of carbon dioxide with 100 % atomic economy [9,10] .…”

“…[1,2] In recent years, some research achievements such as the conversion of carbon dioxide to MeOH, CH 4 , HCOOH, CO, urea, and organic carbonate have been reported. [3][4][5][6][7][8] The cycloaddition reaction of carbon dioxide and epoxides is one of the most effective methods of the conversion of carbon dioxide with 100 % atomic economy. [9,10] The resulting cyclic carbonates have been utilized as polar solvents, biomedical intermediates, electrolytes, and raw materials.…”

Simultaneous co‐Photocatalytic CO2Reduction and Ethanol Oxidation towards Synergistic Acetaldehyde Synthesis

“…Therefore, it is highly desirable to replace OER with a thermaodynamically more favorable half oxidation reaction at reduced potential. Adding hole scavengers such as triethanolamine (TEOA), [4] 1‐Benzyl‐1,4‐dihydronicotinamide (BNAH) [5] and N,N,N,N′‐tetramethyl‐p‐phenylenediamine (TMPD) [6] can effectively promote the CO 2 photoreduction. Yet, this is achieved at the expense of consuming sacrificial reagents and wasting the oxidizing power of photogenerated holes.…”