A Supramolecular Hydrogel Based on Copolymers of Acrylic Acid and Maleic Anhydride Derivatives with Terpyridine Motifs.

A kind of terpyridine derivative () in which the amino was incorporated by a short alkyl chain was synthesized. Through grafting of terpyridine units into the hydrophilic copolymers of maleic anhydride and acrylic acid via the reaction of the amino groups in and the maleic anhydride units, a series of gelator polymers-, , and -containing different contents of terpyridine units was synthesized. Under coordination of Ni and terpyridine ligands in linear polymers, the supramolecular hydrogels , , and with different cross-linking degrees were prepared.

Ultrafast Carbon Dioxide Sorption Kinetics Using Morphology-Controllable Lithium Zirconate.

It was reported that the main obstacle of LiZrO as high-temperature CO absorbents is the very slow CO sorption kinetics, which are ascribed to the gradual formation of compact zirconia and carbonate shells along with inner unreacted lithium zirconate cores; accordingly, the "sticky" Li and O ions have to travel a long distance through the solid shells by diffusion. We report here that three-dimensional interconnected nanoporous LiZrO exhibiting ultrafast kinetics is promising for CO sorption. Specifically, nanoporous LiZrO (LZ-NP) exhibited a rapid sorption rate of 10.

Amine-tethered adsorbents based on three-dimensional macroporous silica for CO(2) capture from simulated flue gas and air.

New covalently tethered CO2 adsorbents are synthesized through the in situ polymerization of N-carboxyanhydride (NCA) of l-alanine from amine-functionalized three-dimensional (3D) interconnected macroporous silica (MPS). The interconnected macropores provide low-resistant pathways for the diffusion of CO2 molecules, while the abundant mesopores ensure the high pore volume. The adsorbents exhibit high molecular weight (of up to 13058 Da), high amine loading (more than 10.