An account of the fundamental chemical and engineering principles of solid amine-based CO ₂ adsorbents and their industrial application, with discussion of the relevance of amine chemistry in CO ₂ utilisation technology.

Aminopolymer functionalization with fluoroalkyl chains and resulting void volume afford 4.1-fold increase in amine efficiency and 2.8-fold increase in CO₂ capture capacity in the fluorinated material.

New triazine-based linker used to cross-link PEI into an unsupported adsorbent with high CO₂ uptake at ambient temperature.

The utilization of carbon dioxide is a major incentive for the growing field of carbon capture. Carbon dioxide could be an abundant building block to generate higher-value chemical products. Herein, we fabricated a porous copper electrode capable of catalyzing the reduction of carbon dioxide into higher-value products, such as ethylene, ethanol and propanol. We investigated the formation of the foams under different conditions, not only analyzing their morphological and crystal structure, but also documenting their performance as a catalyst. In particular, we studied the response of the foams to CO₂ electrolysis, including the effect of urea as a potential additive to enhance CO₂ catalysis. Before electrolysis, the pristine and urea-modified foam copper electrodes consisted of a mixture of cuboctahedra and dendrites. After 35 min of electrolysis, the cuboctahedra and dendrites underwent structural rearrangement affecting catalysis performance. We found that alterations in the morphology, crystallinity and surface composition of the catalyst were conducive to the deactivation of the copper foams.

The synthesis and crystal structures of a series of six magnesium pyridinecarboxylic and dicarboxylic acid complexes are reported. These complexes have been prepared to establish the nature of the hydrogen-bonding within this series and to investigate the potential of using these complexes as precursors in the self-assembly of network materials. Two Mg picolinic acid complexes (Mg1, Mg2) display a 1 : 2 metal : ligand ratio and are polymorphic. A Mg isonicotinic acid complex (Mg3) is a constitutional isomer of Mg1 and Mg2, while a 1 : 1 Mg picolinic acid complex (Mg4) is also reported and compared to the other members of the series. The set of complexes reported is completed by the synthesis and structural characterisation of two complexes containing the 2,4-pyridinedicarboxylic acid (2,4pdca) ligand, both a 1 : 1 (Mg5) and 1 : 2 (Mg6) Mg 2,4pdca acid complex, in which the presence of the additional carboxylate functionality provides clearer potential to form materials with extended network structures.