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Structure/Conductivity Relationship in Doped Bismuth Tantalate Solid Electrol...
A detailed study of the temperature and compositional variation of defect structure in doped bismuth tantalates is proposed. Tantalum doping into Bi2O3 can achieve d-phase... -
Ba3MoNbO8.5 novel oxide ion conductor: Direct observation of oxide ion dynamics
Oxide ion conductors are researched as electrolytes in solid oxide fuel cells. Yttria-stabilized zirconia is the currently used electrolyte in SOFCs, leading to high operating... -
Formation and ammonia decomposition behaviour of lithium nitride hydride
Ammonia is seen as a key part of the transition to a sustainable energy economy, but needs decomposition catalysts to release its stored hydrogen. Lithium nitride-hydride... -
In-situ reaction of lithium amide or imide with manganese(IV) oxide
We request 3 days beam time on POLARIS for in-situ powder diffraction studies of the reactions of lithium amide or lithium imide with manganese(IV) oxide under flowing argon or... -
Phase behaviour in lanthanum antimony niobate proton conductors
Antimony substituted lanthanum niobium oxide is a recently developed proton conductor with potential use in fuel cells, gas sensors and steam electrolysers Our preliminary work... -
Hydrothermal synthesis and calcination of hydrotalcites
Hydrotalcites are anionic clays which have a variety of applications, including use as environmentally friendly catalysts and catalyst precursors. In this experiment we propose... -
Total scattering from multiferroic bismuth ferrite at high temperatures
Bismuth ferrite (BiFeO3) is the archetypal multiferroic material and as such has been copiously studied using a wide variety of techniques. Despite this, new structural and... -
In search of origin of metal-insulator transition in honeycomb structure Li2RuO3
Recently we have carried out inelastic neutron scattering measurements on Li2RuO3 to understand the nature of the phase transition at 550K. We have seen a clear inelastic... -
Na-Dynamics in Solid Ionic Conductors: 11Al2O3-Na2O and Na2Ti3O7
We propose to measure the quasielastic neutron scattering (QENS) spectra to study the diffusion dynamics in beta- alumina (11Al2O3-Na2O) and Na2Ti3O7. The measurement of QENS... -
Vacancy Distribution in Praseodymium Doped Ceria
Doped cerias are currently being used as oxide ion conducting electrolyte materials in solid oxide fuel cells (SOFCs). Depending on the nature and concentration of the dopant... -
A Total Scattering Study of Local Structure in BIMEVOXes
The BIMEVOXes are an important family of fast oxide ion conducting solids that exhibit very high conductivities at low and intermediate temperatures. A study of local ordering... -
Rosseinsky Programme Access Polaris
To determine the temperature dependence of the structures of new mixed and ionic conducting materials in the n = 2 ruddlesden-popper,mellilite and pyrochlore systems.
