50 datasets found

We have synthesized and characterized a new member, namely Fe2V2O7 in the family of 3d transition metal pyrovanadate M2V2O7 (M =Mn, Fe, Co, Ni, Cu). M2V2O7 exist with a great...

The structure of the phosphate materials Na_{1+x}Ge_{2-x}Al_x(PO_4)_3 with x = 0, 0.4 and 0.8 will be investigated using high real-space resolution neutron diffraction. In the...

Perovskites are used in many applications such as electrode materials in fuel cells or as catalysts e.g. in syngas conversion, CO oxidation, N2O decomposition, or...

The diffuse and intermittent nature of renewable power sources such as wind and solar presents problems regarding how best to harvest the energy they produce and store it for...

Vanadium based compounds have attracted considerable interest as positive electrode materials for Li ion batteries. This is due to vanadium’s ability to display a range of...

This is a proposal to establish the structural and chemical differences between two phases of composition very close to CaFe3O5 which have been shown by other authors [Hong, K....

Zircon-type PrVO4 was shown recently to be a mixed ionic-electronic conductor. Electronic transport was attributed to electron-hopping between Pr3+/Pr4+ cations, with Pr4+...

Multiferroic materials - those which exhibit spontaneous and switchable electrical and magnetic polarizations - have a wide range of applications. However preparing new...

Ge-(Ga,Sb)-S glasses are widely used in infrared optics. Despite the practical importance their short range order is still not understood completely. The main problem is that...

The interplay between spin, charge, orbital, and lattice degrees of freedoms in SrMn1-xWxO3 (X= 0.1625, 0.175) produce the charge and/or spin density waves (CDW, SDW) modulated...

The UK nuclear industry is involved in a large effort to decommission nuclear power reactors and safely store radioactive waste. A key process is the vitrification of high level...

We designed and synthesized a series of new oxided ionic conductors Ba3M1+xTi1-xO8+x (M = Mo and W), which adopt a hybridized structure with the features of 9R perovskite...

Glass-based phosphors have applications that range from light-emitting diodes to lasers. The optical properties of these materials depend on the coordination environment of the...

Tungsten Tellurites are being used to make optical fibres that transmit light into the mid infra red. However, not much is know about the structure of these glasses. We wish to...

Phosphate glasses containing transition metal oxides, such as MoO3 and WO3, are of interest for various applications making use of their electrical properties. MoO3 and WO3 are...

Over the past few years, extensive developments have been made in the use of neutron diffraction for structural studies of liquids and amorphous materials at high pressure....

A vast amount of work has been conducted on understanding metal organic frameworks (MOFs) in their powder form. However, for use in industrial processes, powders will need to be...

Barocaloric materials, in which a large isothermal entropy change is associated with a pressure-induced phase transition, offer an alternative to vapour-compression techniques...

We will study the effects of changes in composition and structure of alkali silicate and alkali-alkaline earth silicate glasses on its sulphate incorporation capacities. Total...

Hard carbons are amongst the most promising anode materials for sodium-ion batteries, but their charge storage mechanisms are still poorly understood. Difficulties in...