Kris Anderson

The Co‐Entrapment of a Homogeneous Catalyst and an Ionic Liquid by a Sol–gel Method: Recyclable Ionogel Hydrogenation Catalysts

Molecular hydrogenation catalysts have been co-entrapped with the ionic liquid [Bmim]NTf(2) inside a silica matrix by a sol-gel method. These catalytic ionogels have been compared to simple catalyst-doped glasses, the parent homogeneous catalysts, commercial heterogeneous catalysts, and Rh-doped mesoporous silica. The most active ionogel has been characterised by transmission electron microscopy, X-ray photoelectron spectroscopy, and solid state NMR before and after catalysis. The ionogel catalysts were found to be remarkably active, recyclable and resistant to chemical change.

Carbon dioxide uptake from natural gas by binary ionic liquid–water mixtures

Carbon dioxide solubility in a set of carboxylate ionic liquids formulated with stoicheiometric amounts of water is found to be significantly higher than for other ionic liquids previously reported. This is due to synergistic chemical and physical absorption. The formulated ionic liquid/water mixtures show greatly enhanced carbon dioxide solubility relative to both anhydrous ionic liquids and aqueous ionic liquid solutions, and are competitive with commercial chemical absorbers, such as activated N-methyldiethanolamine or monoethanolamine.

Phase behaviour of trihexyl(tetradecyl)phosphonium chloride, nonane and water

This research details our investigations into the potential for separating the ionic liquid trihexyl(tetradecyl)phosphonium chloride ([P6 6 6 14]Cl) from nonane using water. A miscible two component mixture of [P6 6 6 14]Cl and straight chain hydrocarbon separates upon addition of water into a three-phase mixture. The phase behaviour for [P6 6 6 14]Cl/water/nonane is presented, showing a stable three-component phase, whereby any additional water or nonane separates into its own immiscible layer. Although this limits the potential use of this system for entirely separating hydrocarbons from this ionic liquid, it has potential for other uses, such as triphasic catalysis.

Influence of ionic liquids on the crystalline structure of nanocolloids

This communication demonstrates that ionic liquids can alter the crystallinity and chemical ordering of nanocolloids synthesized in solution.

Correction: Carbon dioxide uptake from natural gas by binary ionic liquid–water mixtures

Correction for ‘Carbon dioxide uptake from natural gas by binary ionic liquid–water mixtures’ by Kris Anderson et al., Green Chem., 2015, DOI: 10.1039/c5gc00720h.