Themed collection CO2 Conversion

This perspective reflects on the implementation of a multidisciplinary consortium project combining biological, chemical and computational sciences to discover and develop new enzymes for carbon dioxide fixation.

Anthropogenic CO₂ emissions have drawn significant attention in recent years.

Carboxylation is a promising and versatile technology for producing industrially valuable products, being a potential process for future use of captured CO₂. Enzymatic and thermochemical routes are the closest to being scaled up.

Catalytic reduction of CO₂ to methane conversion by single-atom catalysts (SACs).

The CO₂ reforming of methane effectively produces syngas from two major greenhouse gases, CO₂ and CH₄. Ni/Ce_0.8Zr_0.2O_2−x catalyst shows outstanding performance, with improved stability from oxygen vacancies and strong metal–support interactions.

Perovskite oxides facilitate CO₂ conversion by reverse water–gas shift chemical looping at moderate conditions by employing an oxygen vacancy at the surface to aid CO₂ adsorption and then to scavenge an oxygen atom from it to fill the vacancy.

Exsolved perovskite-based catalysts exhibiting high and stable CO₂ conversion rates.

Conversion of CO₂ to methyl formate over Cu/MgO-ZrO₂.

The CO₂-assisted oxidative dehydrogenation of propane is of great interest for the use of CO₂ in chemical industry. Using multiple operando spectroscopy the catalysts mode of operation is unraveled facilitating the development of improved catalysts.

Various supported Ru-based catalysts have been tested for CO₂ hydrogenation under different temperatures, pressures and H₂/CO₂ ratios. Ru/TiO₂ is found to be the most active and stable catalyst over a range of process conditions followed by Ru/ZrO₂.

Dry reforming of methane on CeNiO₃ nanoparticles.

With the growing necessity of achieving carbon neutrality in the industrial sector, the catalytic hydrogenation of carbon dioxide into methanol has been widely considered one of the key strategies for the utilization of captured CO₂.

The paper presents a novel technology for simultaneously transforming CO₂ and biomass at hydrothermal media to obtain organic acids.

Effects of pre-treatment temperatures on the catalytic activity of a Ni-doped perovskite for dry reforming of methane were studied. Particles form at optimal temperatures that are stable under reaction conditions, shown by in situ XRD measurements.

Optimizing calcium and magnesium extraction from platinum group metal mine tailings for enhanced CO₂ storage via a pH-swing process.

CO₂ and CO valorization to methanol and methane over Cu or CuPd nanoparticles supported on ZnO or graphene. The catalysts demonstrate high efficiency, favouring methane at lower metal loading but methanol at high copper content.

2,5-Furan Dicarboxylic Methyl Ester (FDME) was obtained from CO₂ and methyl furoate using a cobalt-based heterogeneous catalyst prepared by mechanochemical polymerization. FDME was validated in the synthesis of a biopolyester.

An integrated CO₂ capture and conversion system utilizing metal hydroxide salts has been developed to capture CO₂ from various sources including air in the form of carbonate salts and convert them directly into a synthetic fuel; methane.

Ultraporous permanently polarized hydroxyapatite catalysts are successfully used as an alternative to conventional industrial catalysts for the production of value-added chemical products from CO₂ under truly sustainable and green conditions.

An ionic liquid polymeric matrix is used to immobilize a ruthenium photosensitizer and rhenium catalyst for selective CO₂ reduction to CO.

BaTiO₃ nanocatalysts chemisorb and reduce CO₂ efficiently at 700 K and 0.1–1.0 MPa.

A xanthphos-based porous organic polymer enables the support of a molecular ruthenium complex as solid catalyst for the hydrogenation of CO₂ to formic acid as renewable platform chemical.