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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... -
Local order in the bismuth based solid solution systems BiMeO3 - ATiO3 (Me = ...
Research within the field of functional oxides has always been very active. In recent years systems showing a coupling between ferroelectricity and magnetism have become one of... -
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... -
Structural study of oxygen ion conduction in microporous Mayenite
The crystal unit cell of mayenite, 12CaO.7Al2O3, consists of a cubic lattice of [Ca24Al28O64]4+ with the remaining 2*O2- contained in cages, which are linked by channels within... -
In-situ neutron diffraction studies on proton conducting oxides (CaxLa1-x) ~6...
Rare-earth tungstates have recently attracted significant attention due to its high-temperature proton or mixed proton-electron conductivity. The proton conductivity in La6WO12... -
Total Scattering Study of Hexagonal and Rhombohedral Bi2O3 Based Electrolytes
Bismuth oxide based electrolytes have been widely studied due to their high oxide ion conductivity. The d-phase of Bi2O3 shows the highest known oxide-ion conductivity of any... -
In-situ study of oxygen storage materials in the Zr-Ce-O system
Zirconia-ceria ceramics are promising materials within automotive exhaust catalysts, exploiting the Ce3+<->Ce4+ redox reactions to store oxygen. For a Zr:Ce ratio of 1:1... -
Study of cation disorder, oxygen vacancy ordering and proton sites in La2-xNd...
On the basis of X-ray diffraction the oxygen deficient La2-xNdxCe2O7 series displays a transition from disordered fluorite to the C-type superstructure in which the cations... -
An investigation into water incorporation in titanium and phosphate doped A2S...
The drive for increasing energy efficiency and reducing greenhouse gas emissions has garnered increasing support for the use of fuel cell technology, which offers the potential... -
Investigating the correlation between the order-disorder transition in YSr2Cu...
The effect of order-disorder transitions on the conductivity of oxide ion conducting electrolytes has attracted significant attention in the literature. In contrast there has... -
Increasing Oxide Ion Vacancy Concentration Bi2O3 Based Electrolytes through d...
Recent research has shown that bismuth oxide based electrolytes are viable components in solid oxide fuel cells. Di-substitution of Bi3+ by an isovalent and a subvalent cation... -
In-situ conductivity study of double perovskites for use as potential anode m...
It is a challenge to develop materials for use in fuel cell applications. Presently we are preparing new perovskite and double perovskite structured compounds being potential... -
Oxygen Vacancy Clusters in Pure and Doped CeO2-d
Oxide ceramics based on ceria, CeO2, have been the subject of considerable research for the role of solid electrolyte within solid oxide fuel cells (SOFCs), since their ionic... -
Oxygen Vacancy Defects in Y Doped CeO2
CeO2 based ceramics are currently the subject of extensive research interest as potential electrolyte materials for Solid Oxide Fuel Cells (SOFCs). They offer the advantage of... -
The Defect Structure of Scandia Doped Zirconias
There is currently considerable research interest in the synthesis and characterisation of materials with high oxide-ion conductivities, owing to their potential exploitation as... -
High-Temperature Crystal Structure of Aluminium-Substituted La(Sr)Ga(Mg)O3-d ...
Due to a high-oxide ion conductivity, strontium and magnesium co-substituted lanthanum gallate (LSGM) is considered as a potential electrolyte material for solid oxide fuel... -
Nature of structural disorder in proton conducting In-doped BaZrO3
This proposal requests three days on the Polaris diffractometer to investigate the nature of local structure in the well known proton conducting perovskite system... -
In-situ study of structure-property relationships on proton conducting perovs...
Significant research has been given towards synthesis and characterisation of electrolyte materials with high proton conductivity for intermediate temperature range (200-600°C)... -
Defect Structure in Lead Doped Bismuth Yttrates
Stabilised bismuth oxides are of interest as intermediate temperature solid electrolytes for a variety of electrochemical device applications. Lead doping into bismuth yttrate... -
Phase Transitions in Pb/Y di-substituted Bi2O3 Based Electrolytes
There has been recent interest in the use of cermets based on stabilised delta bismuth oxide based solid electrolytes as cathodes in solid oxide fuel cells. It has been shown...
