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Probing the Kinetics and Liquid Structure of Toluene Hydrogenation by Pt/MCM-41
In a proof-of-concept beamtime award (RB1220486) we studied the process of platinum-catalysed benzene hydrogenation in the pores of MCM-41 using standard neutron diffraction... -
Mercury sulphide dimorphism in liquids and glasses
A waste majority of crystals exists in several polymorphic forms in different domains of the P,T-diagram. Liquids and glasses also exhibit polyamorphism and the question remains... -
Conformation of HEC/Colloid system under Shear
Hydroxyethyl cellulose (HEC) is commonly used as a viscosity modifier in many chemical systems, from paints to cement. HEC forms a physical gel in water due to the presence of... -
Elucidating molecular mechanism of membrane disruption by designed α-hel...
We have previously shown that peptides such as G(IIKK)4I-NH2 (G4) can kill bacteria and inhibit cancer cell growth whilst remaining benign to mammalian host cells. We have also... -
Cross-linking processes with microwave radiation and neutron Compton scattering.
The hardening process of moulding sands on quartz matrices bound by polymer binders containing carboxyl and hydroxyl groups can be carried out by using physical agents... -
Effect of Composition on Local Environment of Sulphate in Silicate Glasses
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... -
Test experiment: Neutron diffraction on helium in silica
We request 3 days of beamtime on GEM to attempt to perform neutron diffraction on helium inside vitreous SiO2. Significant amounts of helium can be dissolved into the glass... -
Probing the dynamics of silica supported imidazolium halide catalysts for car...
Atmospheric levels of CO2 are increasing at uncontrolled levels and as such methods of CO2 utilisation are being researched. A key reaction for this purpose is the coupling of... -
Local structure of polymers in confined geometries in surface dominated samples
This proposal is focused on developing an understanding of how surfaces affect the local structure of synthetic polymers. There is considerable evidence for a strong variation... -
The adsorption of methyl proprionate on silica catalysts.
Commercial routes for the manufacture of methyl methacrylate monomer have recently been developed that involve the reaction of esters over modified silicas, which are amphoteric... -
Towards the Calibration of Chemical Pressure
The application of hydrostatic pressure allows the precise tuning of atomic separations, which control electronic structure and virtually all the interatomic interactions that... -
Diffraction 'artifacts' due to shape sie and thickness variation in copper (p...
We poropse to study the effect of postion, varaiation of distance and jaw size on a configuration of two Cu plates on the INES diffractometer in order to obtain informaton on... -
Investigating the response of lipid bilayers to physically structured substrates
The functionality of biological membranes is closely tied to their structural behavior. To understand this behavior we propose to study the conformality of artificial lipid... -
Spatial, Chemical, and Temporal Resolution of Platinum-Catalysed Benzene Conv...
This proposal aims to study the potential for neutron diffraction to offer spatially-, chemically-, and temporally-resolved information on a dynamic system, in this case the... -
Pressure-induced changes in intermediate range order in the candidate polyamo...
This proposal is a continued exploration of the non-recoverable changes that have been reported in the structure of vitreous SiO2 when compressed. This proposed experiment will... -
Study of ordered silicon connectivity defects in the novel zeolite ITQ-45
The structure of the novel pure silica zeolite ITQ-45 has been recently determined in our laboratory. However, although it appears to be a fully connected framework, 29Si NMR... -
Probing the structure of titanium silicates over a wide range of length scales
Titanium silicates are important for a number of applications such as ultra low expansion glasses, anti-reflective thin film coatings and catalytic materials. Titanium silicates... -
Effect of Concentration Charge and Ionic Strength on Adsorption of Small Part...
Despite the wide practical interest in particulate colloids there have been few studies that exploit the advantages of reflection and neutron scattering to study adsorption of... -
The competition between two polymers for adsorption onto one surface
The behaviour of multiple polymers in competition for colloidal silica has previously been investigated in our group using solvent relaxation nuclear magnetic resonance. We... -
Atomic and pore structure of amorphous zeolites
We will investigate a series of amorphised zeolitic solids and determine the short and medium range order structures and more importantly the nature of pore-size when we go from...
