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Characterisation of layered double perovskite electrode materials for Solid O...
The research on new anode materials for solid oxide fuel cell is extremely important for its potential to overcome the drawbacks of current state of the art anodes. In this... -
Structures of New Niobates Prepared by Hydrothermal Synthesis
We have prepared some new highly crystalline mixed-metals oxides using mild hydrothermal reaction conditions. Some of these are doped niobates, related to the important... -
Investigation of the impact of mechanical twinning on the thermal expansion b...
We request three days of beam-time on POLARIS to investigate the influence of thermally-induced twinning on the thermal expansion behaviour of polycrystalline calcite.... -
A variable temperature study of polymorphism in Li2MSiO4 electrode materials
There is great interest in scaling up Li-ion batteries for use in electric vehicles, requiring cheap and safe cathodes. Recently, silicate-based cathodes have been described,... -
Structural Disorder in the Quantum Spin Liquid Candidate YbMgGaO4
Quantum spin liquids are novel magnetic states in which quantum entanglement suppresses conventional magnetic order. Understanding the effects that stabilise such states is an... -
Structral characterisation of a novel lead free perovskite layer structure an...
Lead free antiferroelectric materials are the focus of much attention for the replacement of lead based materials in electronic devices, such as high energy storage capacitors,... -
Understanding the Earth's Core-Mantle Boundary: Crystal and Magnetic Structur...
The physical properties of the post-perovskite phase of MgSiO3 control the dynamics of the lower thermal boundary layer of the Earth¿s mantle, but many of these properties... -
In-situ Hydrogenation of Calcium Nitride
Nitrides of alkali and alkaline earth metals are an interesting set of materials specifically for their potential in reversible hydrogen storage. However, many fundamental... -
In situ studies of mixed-phase oxygen transport membranes
The oxygen transport membrane is a system being developed by St Andrews in conjunction with industry, which at high temperatures will allow the selective migration of oxygen... -
Neutron diffraction at high pressure on alkali diborate glass
Borate glasses are archetypal amorphous oxide characterized by important medium range organisation. These glasses exhibit pressure-induced boron coordination change. The... -
A High-Pressure investigation on 3,4,5-Trinitropyrazole
This proposal will explore the effect of elevated pressure on the 3,4,5-Trinitropyrazole (TNP). TNP releases a large amount of dinitrogen gas as a detonation product which is... -
Simultaneous Conductivity-Diffraction Studies of Halide Superionics
We request 5 days beamtime on the Polaris diffractometer to perform simultaneous ionic conductivity and neutron powder diffraction measurements of five superionic binary... -
Ordering in the La/W substituted bismuth oxide fluorite, Bi7W0.25La0.75O12.375
Materials that show fast oxide ion conduction have potential applications as electrolytes in devices such as solid oxide fuel cells (SOFCs), gas sensors and gas separation... -
Does elastic twinning play a role in the thermal expansion behaviour of polyc...
We request two days of beam-time on POLARIS to obtain high resolution measurements of the thermal expansion of dolomite [CaMg(CO3)2]. The experiment forms part of a larger... -
Cation site disorder in KTiOPO4 isostructures
KTiOPO4 (KTP) is a well known non-linear optical material. Its crystal structure has highly asymmetric Ti-O bonds, a rigid TiO6-PO4 lattice and K cations trapped in cages. The... -
Probing the Local Structure-Property Relationship in the IMSSZ Oxide Ion Cond...
The current state-of-the-art solid oxide fuel cell (SOFC) electrolyte material, 8 mol% yttria stabilised zirconia (8YSZ), exhibits good performance at temperatures above 850 °C.... -
In-situ studies of amides with ammonia
The aim of this proposal is to determine that materials that are present in the ammoniation of amides. -
The Magnetic Structure of LaCoxMn1-xO3 (x = 0.75)
It is the aim of the current proposal to examine in detail the magnetic structure of LaCo0.75Mn0.25O3 at low temperature, which should provide insight into the nature of the... -
YMnO3-x : Mn(I) in a mixed metal oxide ?
Topotactic reduction of YMnO3 with CaH2 yields three new reduced phases. Two of these phases appear to have compositions close to YMnO2.5 but with very different anion vacancy... -
Particle and temperature dependent solubility limits in LiFePO4
In extension of our previous study on particle size dependent solubility limits in nano-sized LiFePO4 we wish to extend our study to temperature dependent solubility limits in...
