A5037155552- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Geology and Paleoclimatology Research
- Fuel Cells and Related Materials
- Vagus Nerve Stimulation Research
- Geomagnetism and Paleomagnetism Studies
- Advanced Battery Materials and Technologies
- Advancements in Solid Oxide Fuel Cells
- Electrocatalysts for Energy Conversion
- Advanced X-ray and CT Imaging
- Hydraulic Fracturing and Reservoir Analysis
- Cardiac Arrhythmias and Treatments
- Advanced battery technologies research
- Paleontology and Stratigraphy of Fossils
- Advanced X-ray Imaging Techniques
- Electronic and Structural Properties of Oxides
- Hydrocarbon exploration and reservoir analysis
- Supercapacitor Materials and Fabrication
- Neuroscience and Neural Engineering
- Insect and Arachnid Ecology and Behavior
- Extraction and Separation Processes
- Neurological disorders and treatments
- Magnetic and transport properties of perovskites and related materials
- Neurobiology and Insect Physiology Research
- Angiogenesis and VEGF in Cancer
London Centre for Nanotechnology
2018-2024
University College London
2017-2024
Biochemical Society
2017-2023
University of Leeds
2023
Transnational Press London
2019
Universidade de São Paulo
2014-2019
University of Siena
2012-2014
University of Parma
1908
Geological records from the Antarctic margin offer direct evidence of environmental variability at high southern latitudes and provide insight regarding ice sheet sensitivity to past climate change. The early mid-Miocene (23-14 Mya) is a compelling interval study as global temperatures atmospheric CO2 concentrations were similar those projected for coming centuries. Importantly, this time includes Miocene Climatic Optimum, period warmth during which average surface 3-4 °C higher than today....
Abstract Proton exchange membrane fuel cells, consuming hydrogen and oxygen to generate clean electricity water, suffer acute liquid water challenges. Accurate modelling is inherently challenging due the multi-phase, multi-component, reactive dynamics within multi-scale, multi-layered porous media. In addition, currently inadequate imaging capabilities are limiting simulations small areas (<1 mm 2 ) or simplified architectures. Herein, an advancement in achieved using X-ray micro-computed...
The permeability of shales is important, because it controls where oil and gas resources can migrate to in the Earth hydrocarbons are ultimately stored. Shales have a well-known anisotropic directional that inherited from depositional layering sedimentary laminations, highest measured parallel laminations lowest perpendicular laminations. We combine state art laboratory experiments with high-resolution X-ray computed tomography for first time quantify three-dimensional interconnected...
Three-dimensional (3D) printing is gaining importance as a sustainable route for the fabrication of high-performance energy storage devices. It enables streamlined manufacture devices with programmable geometry at different length scales down to micron-sized dimensions. Miniaturized are fundamental components on-chip technologies enable autonomy. In this work, we demonstrate 3D printed microsupercapacitor electrodes from aqueous inks pristine graphene without need high temperature processing...
The oldest putative fossils occur as hematite filaments and tubes in jasper-carbonate banded iron formations from the 4280- to 3750-Ma Nuvvuagittuq Supracrustal Belt, Québec. If biological origin, these might have affinities with modern descendants; however, if abiotic, they could indicate complex prebiotic forms on early Earth. Here, we report images of centimeter-size, autochthonous that are pectinate-branching, parallel-aligned, undulated, containing Fe2+-oxides. These microstructures...
3D printed electrodes of 1T′/1T MoS 2 /TiS nanosheets without conductive additives have been demonstrated to perform for durable supercapacitors.
Summary A robust and versatile sample preparation technique for the fabrication of cylindrical pillars imaging by X‐ray nano‐computed tomography (nano‐CT) is presented. The procedure employs simple, cost‐effective laser micro‐machining coupled with focused‐ion beam (FIB) milling, when required, to yield mechanically samples at micrometre length‐scale match field‐of‐view (FOV) nano‐CT imaging. variety energy geological materials are exhibited as case studies, demonstrating can be applied a...
Graphite is the most commonly used anode material in commercial lithium-ion batteries (LiBs). Understanding mechanisms driving dimensional changes of graphite can pave way to methods for inhibiting degradation pathways and possibly predict electrochemical performance loss. In this study, correlative microscopy tools were alongside dilatometry (ECD) provide new insights into during galvanostatic cycling. X-ray computed tomography (CT) provided a morphological perspective cycled electrode so...
Abstract SARS-CoV-2 may spread through respiratory droplets released by infected individuals. The viruses are transmitted in moist which cause coronavirus disease. Many countries have mandated the wearing of face masks, to various extents. However, efficacy masks is yet be well rationalised given limited microstructure information. Here, three common and associated air permeations were revealed coupling X-ray tomographic imaging infrared thermal techniques. Quantitative parameters been...
Proprioception is essential for behavior and provides a sense of our body movements in physical space. Proprioceptor organs are thought to be only the periphery. Whether central nervous system can intrinsically its own movement remains unclear. Here we identify segmental organ proprioception adult zebrafish spinal cord, which embedded by intraspinal mechanosensory neurons expressing Piezo2 channels. These cells late-born, inhibitory, commissural with unique molecular physiological profiles...
Isolating electronically conducting material from internal short circuits is a promising way to prevent the onset of thermal runaway within lithium-ion cells. Here, metal-coated polymer current collector, which designed disconnect by withdrawing heating region, tested in 18650 In addition having lower mass and manufacturing costs, cells with collectors demonstrate reduced risk during nail penetration. High-speed synchrotron X-ray radiography nail-penetration testing, tandem pre- post-mortem...
The zinc-ion battery is one of the promising candidates for next-generation energy storage devices beyond lithium technology due to earth's abundance Zn materials and their high volumetric density (5855 mA h cm–3). To date, formation dendrites during charge–discharge cycling still hinders practical application batteries. It is, therefore, crucial understand mechanism zinc dendritic structure before effectively suppressing its growth. Here, operando digital optical microscopy in situ...
Abstract Separation processes are substantially more difficult when the species to be separated is highly dilute. To perform any dilute separation, thermodynamic and kinetic limitations must overcome. Here we report a molten-carbonate membrane that can ‘pump’ CO 2 from 400 ppm input stream (representative of air) an output with higher concentration , by exploiting ambient energy in form humidity difference. The substantial H O difference across drives permeation ‘uphill’ against its own...
The porous transport layer (PTL) is a vital component of the polymer electrolyte membrane water electrolyser (PEMWE) as it both conduit for current distribution and mass transport. This study aims to examine influence microstructure PTL on performance PEMWE by combination ex-situ in-situ techniques. Two PTLs with distinctly different mean pore diameter were characterized determine key properties such surface morphology, porosity, size porosity distribution. results scanning electron...
This method for virtually unrolling the jelly roll of a lithium ion cell using X-ray CT highlights predictability macro deformations formed while cycling. The failure is shown to propagate from nucleation points present since production.
Abstract Solid‐state lithium batteries will revolutionize the lithium‐ion battery and energy storage applications if certain key challenges can be resolved. The formation of lithium‐protrusions (dendrites) that cause catastrophic short‐circuiting is one main obstacles, progresses by a mechanism not yet fully understood. By utilizing X‐ray computed tomography with nanoscale resolution, 3D morphology protrusions inside short‐circuited solid electrolytes has been obtained for first time....
Porous metal foams have been used as alternative flow-fields in proton exchange membrane fuel cells (PEMFCs), exhibiting improved performance compared to conventional 'land and channel' designs. In the current work, mechanical behaviour of PEMFCs using foam is investigated across different length scales a combination electrochemical testing, X-ray computed tomography (CT), compression tests, finite element analysis (FEA) numerical modelling. Fuel cell peak power was seen improve by 42% when...
Due to the lack of understanding fascicular organisation, vagus nerve stimulation (VNS) leads unwanted off-target effects. Micro-computed tomography (microCT) can be used trace fascicles from periphery and image anatomy. In this study, we present a simple reproducible method for imaging in peripheral nerves with iodine staining microCT determination anatomy organisation. At determined optimal pre-processing steps scanning parameters, protocol allowed segmentation tracking within nerves. This...