Oxyhydrides, in which oxide and hydride anions share the same anionic lattice, are relatively rare compounds, and their synthesis is challenging. A team of researchers from the University of Oslo has used powder neutron diffraction experiments on Polaris and quasi-elastic neutron scattering measurements on Iris to develop a new method of synthesising La2LiHO3 that allows the production of larger quantities. They also reported, in detail, the conditions favouring high-quality high-yield samples of this material, which will be of considerable importance for further studies into its properties and potential practical applications in real devices.
Related publication: O. S. Fjellvag et al. “Thermal and Structural Aspects of the Hydride-Conducting Oxyhydride La2LiHO3 Obtained via a Halide Flux Method" Inorg. Chem. 56 (18)(2017), 11123–11128, DOI: 10.1021/acs.inorgchem.7b01409