Paul R. Shearing

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We imaged an oil-wet sandstone at residual oil saturation (S(or)) conditions using X-ray micro-tomography with a nominal voxel size of (9 μm)(3) and monochromatic light from a synchrotron source. The sandstone was rendered oil-wet by ageing with a North Sea crude oil to represent a typical wettability encountered in hydrocarbon reservoirs. We measured a(More)
Battery technology plays an important role in energy storage. In particular, lithium– ion (Li-ion) batteries are of great interest, because of their high capacity, long cycle life, and high energy and power density. However, for further improvements of Li-ion batteries, a deeper understanding of physical processes occurring within this type of battery,(More)
We report the results from an operando XRD-CT study of a working catalytic membrane reactor for the oxidative coupling of methane. These results reveal the importance of the evolving solid state chemistry during catalytic reaction, particularly the chemical interaction between the catalyst and the oxygen transport membrane.
Prevention and mitigation of thermal runaway presents one of the greatest challenges for the safe operation of lithium-ion batteries. Here, we demonstrate for the first time the application of high-speed synchrotron X-ray computed tomography and radiography, in conjunction with thermal imaging, to track the evolution of internal structural damage and(More)
The electrodeposition of metallic lithium is a major cause of failure in lithium batteries. The 3D microstructure of electrodeposited lithium 'moss' in liquid electrolytes has been characterised at sub-micron resolution for the first time. Using synchrotron X-ray phase contrast imaging we distinguish mossy metallic lithium microstructures from high surface(More)
A new technique combining in situ X-ray diffraction using synchrotron radiation and infrared thermal imaging is reported. The technique enables the application, generation and measurement of significant thermal gradients, and furthermore allows the direct spatial correlation of thermal and crystallographic measurements. The design and implementation of a(More)
Ceria is of particular interest for solar production of carbon monoxide and hydrogen, [ 2,3 ] as an electrolyte for solid oxide fuel and electrolysis cells (SOFCs and SOECs), [ 4–6 ] and as a catalyst and support for catalytic converters. [ 7 ] Nickel, which is often produced from NiO precursors, is widely used as a catalyst for a variety of chemical(More)
Due to their durability, high specifi c energy, and high energy density, [ 1 ] lithium primary batteries are the most favored energy storage technology for demanding applications where recharging is impractical, e.g., emergency transmitters [ 2 ] and safety, military and security devices. Due to their widespread application in missioncritical systems,(More)