Conveners
Chemistry & Crystallography: Session 3
- Ian Gentle (University of Queensland)
Diffraction experiments typically provide clear picture of a crystal structure and basis for understanding material properties. However, for materials with high static or dynamic disorder and/or weakly occupied atomic sites, the diffraction data reflecting space- and time-averaged state may struggle to distinguish several alternative models yielding similar $\chi$2. In that case,...
The scheelites are a family of compounds with chemical formula AB O4 where A and B can represent a variety of different cations. The highly versatile scheelite crystal structure consists of A O8 dodecahedra and B O4 tetrahedra and gives rise to a variety of interesting properties depending on the combination of cations.1 Scheelite-type...
Recent studies on organic-inorganic hybrid perovskites (OIHPs) and ferroelectric metal-organic framework perovskites (MOFPs) reveal their superb performance as highly efficient photovoltaics and promising ferroelectrics. This has enabled a new generation of optic-electronic-mechanical devices based on green chemistry. However, the ultimate strategies to optimize these polarization-related...
Mixed ionic-electronic conductors have a wide range of applications, including in solid oxide fuel cells, batteries and sensors. Perovskite oxides are well suited for these wide variety of applications due to their robust structures that can be engineered with dopants to achieve desired properties. Hydration, and subsequent oxide-ionic and proton conduction, in such oxides is usually achieved...
Specific ion effects are phenomena that depend on the identity of ions present in a system, and not merely their valence or concentration. For example, the Hofmeister series orders ions on their ability to either stabilise (salting-in ions) or destabilise (salting-out ions) proteins and is vital in biochemistry.[1] In recent years, polymer brushes, which consist of end-tethered polymer chains...
Recently, a number of choline amino-acid salts have been reported to form ionic liquids (ChILs), creating the possibility of biocompatible ILs with a sustainable production cycle.[1,2] Since their discovery, these designer solvents have proven useful across many applications, including drug synthesis and delivery, electrochemistry, biomass processing and CO2 capture, often in mixtures with...
