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Neutron Powder Diffraction Experiments on Ternary Alkali Metal Palladium and ...
Na2PdC2 and Na2PtC2 are the first examples of ternary alkali metal transition metal acetylides. They were synthesized and structurally characterised by our group in 2001 based... -
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.... -
Pair distribution function analysis of stacking disorder in ice
Very recently, the metastable cubic ice phase was renamed to stacking-disordered ice (ice Isd) in order to emphasise the fact that this form of ice contains not only cubic... -
Oxide Ionic Conductivity in Anion-Deficient Fluorites
The last couple of decades have seen a rapidly increasing interest in new environment friendly energy sources and one key aspect of this research involves characterisation of... -
Neutron diffraction studies of nano-diamond particles
Nano-diamond particles are synthesised by detonation of TNT and Hexogen, resulting in a shockwave which produces diamond nanoparticles with an average size of around 5 nm,... -
Characterisation of superalloys strengthened by Co3Ti
One method by which the efficiency of gas turbine engines may be improved is by increasing the gas stream temperature on entry to the turbine. Currently this temperature is... -
Transition metal carbides via novel, ultrafast microwave synthesis; Reaction ...
We are investigating the ultra-rapid synthesis of transition metal carbides using microwave (MW) irradiation. Currently we are establishing an understanding of these reactions... -
Evolving structures of oxysulfide battery materials
This proposal aims to investigate the evolution of the structures of layered oxysulfide materials which show promise as lithium ion battery electrodes. The lithiation of... -
Diffraction Resistance Measurements of a Chalcopyrite
During the course of a PhD project funded by CCLRC's CMPC, we have developed a cell that allows electrical transport property measurements to be made simultaneously with the... -
Phase behaviour of nano-sized ion-inserted compounds
Insertion reactions are of key importance for Li-ion and Hydrogen storage materials and energy storage devices. Nano-sizing the electrode materials has emerged as a promising... -
Powder diffraction studies under high deuterium pressure
The aims of the experiment are (1) to obtain structural data for the model hydrogen storage intermetallic LaNi5 under a deuterium pressure of 3000 bar at cryogenic temperatures,... -
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... -
Enhanced oxygen hyperstoichiometry in Y doped La9.33+xGe6O26+3x/2
Apatite-type lanthanide silicates/germanates have been attracting considerable interest as a new class of oxide ion conductors. The presence of interstitial oxide ions is... -
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... -
The mechanism of Oxygen Absorption/Desorption in YBaCo4O7+d (Y114) studied by...
An uncommon oxygen absorption/desorption behavior for cobalt oxide YBaCo4O7+d was found[Karppinen et al. Chem Mater 18 2006 490]. Y114 absorbs and desorbs oxygen up to d = 1.5... -
Framework flexibility and host-guest hydrogen bonding in the metal-organic do...
The recently reported double perovskite analogue imidazolium potassium iron(III) cyanide is noteworthy for two reasons. First, the order-disorder phase transitions, in which the... -
High-pressure studies of energetic materials
This proposal seeks to identify and characterise high-pressure polymorphs of the energetic materials hydroxylammonium perchlorate, CL-20, diaminodinitroethene (FOX-7), and... -
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... -
Temperature induced structural phase transitions in BaPrO3 and acceptor doped...
The sequence of structural phase transitions that occur in distorted ABO3 perovskites as a function of temperature is of intrinsic interest for better understanding of the... -
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...