A5037257759- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Anodic Oxide Films and Nanostructures
- Advanced Battery Technologies Research
- Semiconductor materials and devices
- ZnO doping and properties
- Conducting polymers and applications
- Catalytic Processes in Materials Science
- Nanoporous metals and alloys
- Advanced Battery Materials and Technologies
- Graphene research and applications
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Molecular Sensors and Ion Detection
- Luminescence and Fluorescent Materials
- X-ray Diffraction in Crystallography
- Transition Metal Oxide Nanomaterials
- Molecular Junctions and Nanostructures
- Extraction and Separation Processes
- Supramolecular Chemistry and Complexes
- Copper-based nanomaterials and applications
- Electrodeposition and Electroless Coatings
- Electron and X-Ray Spectroscopy Techniques
- Crystallization and Solubility Studies
University of Oxford
2021-2022
The Faraday Institution
2021-2022
IMEC
2017-2020
KU Leuven
2016-2020
Institute of Catalysis and Petrochemistry
2020
Institut Català d'Investigació Química
2014
Observatori de l'Ebre
2014
Lithium-ion battery electrodes are on course to benefit from current research in structure re-engineering allow for the implementation of thicker electrodes. Increasing thickness a electrode enables significant improvements gravimetric energy density while simultaneously reducing manufacturing costs. Both metrics critical if transition sustainable transport systems is be fully realized commercially. However, barriers exist that prevent use such microstructures: performance issues,...
Abstract Growth in the Li-ion battery market continues to accelerate, driven primarily by increasing need for economic energy storage electric vehicles. Electrode manufacture slurry casting is first main step cell production but much of manufacturing optimisation based on trial and error, know-how individual expertise. Advancing science that underpins electrode critical adding value chain. Overcoming current barriers requires advances materials, technology, in-line process metrology data...
In this work, we demonstrate electrochemical methods for determination of porosity and surface area thin films interconnected nickel nanowires. While the standard porosimetry gas adsorption lack sensitivity characterization metallic films, employing coulometry, cyclic voltammetry impedance spectroscopy can be applied to accurately determine textural properties micron- sub-micron thick nanostructured materials. Additionally, in work evaluated accuracy precision five signals recorded during...
An aryl-extended calix[4]pyrrole receptor with four carboxylic groups at the lower rim binds<italic>N</italic>-oxides in water high stability constants.
Nanostructured metals with large surface area have a great potential for multiple device applications. Although various metal architectures based on nanoligaments and nanowires are well known, they typically show tradeoff between mechanical robustness, high area, (macro)porosity, which, when combined, could significantly improve the performance of devices such as batteries, electrolyzers, or sensors. In this work, we rationally designed templated networks interconnected nanowires, combining...
In this work, we report a new method for depositing thin films of MnO2 on planar and complex nanostructured surfaces, with high precision conformality. The is based repeating cycles adsorption an unsaturated alcohol surface, followed by its oxidation aqueous KMnO4 formation thin, solid MnO2. amount manganese oxide formed in each cycle limited the quantity adsorbed alcohol; thus, growth exhibits self-limiting characteristics atomic layer deposition (ALD). Contrary to typical ALD, however,...
Three-dimensional (3D) configuration of high-performance energy storage devices has been the subject ongoing investigations targeting their integration in autonomous microelectronic systems. In this study we demonstrate a route toward realization high capacity cathode material for 3D thin-film lithium-ion (Li-ion) batteries. Electrolytic manganese dioxide (EMD) film can be applied as Li-ion intercalation electrode upon its conversion to lithium (LiMn2O4 or LMO) by solid-state reaction. The...
High surface area 3D nanowires give access to all the lithium in Li<sub>x</sub>MnO<sub>2</sub>, boosting capacity and (dis)charging of Li-ion cathodes.
Sodium-ion batteries (NIBs) are a promising alternative to lithium-ion (LIBs), which currently dominate electric vehicle and portable device applications. But while NIBs have potential cost safety advantages, they still lag behind LIBs in capacity, power output longevity. Considerable research development effort is now being expended develop more energy-dense electrodes order for become commercially viable. A possible route increasing the energy density of increase electrode thickness (and...
Although polymeric binders constitute only a small fraction (< 5% volume) of Li-ion electrodes, they are an essential component batteries, binding otherwise loose active particles to each other and the current collector. Yet, despite more than 30 years development exact morphology that adopt on around particle surfaces in electrodes remains extremely difficult assess, similarly surface covered by binder. It is already well established binder chemistry strongly influences key battery...
The growing market of small consumer electronics, such as cell phones, smartwatches or electronic eyewear requires development power sources that allow for both satisfactory usage time and fast charging. Lithium-ion batteries (LIBs) are currently the systems choice thanks to their high energy density. However, downscalling these device applications still possess a big challenge. Due electronically ionically resistive nature active materials, mini-LIBs made only in thin film technology, thus...
The growing market of small consumer electronics, such as cell phones, smartwatches or electronic eyewear requires development power sources that allow for both satisfactory usage time and fast charging. Lithium-ion batteries (LIBs) are currently the systems choice thanks to their high energy density. However, downscalling these device applications still possess a big challenge. Thin-film Li-ion micro-batteries with (dis)charging rate capability available on market, but limited niche chip...
Three-dimensional (3D) architectures for high-performance energy storage devices has been the subject of ongoing investigations targeting their integration in autonomous microelectronic systems. In this paper we present a route toward realization high capacity LiMn 2 O 4 (LMO) cathode films 3D thin-film lithium-ion batteries. One critical steps process is electrodeposition MnO coatings also known as electrolytic manganese dioxide (EMD) films. The main challenges depositing thick enough EMD...
Porous and electrically conductive materials having extended surface area are attractive for wide range of applications, such as catalysis, sensing or energy storage. High the material provides higher reaction rates lower electrode resistance. For instance, metallic sponges Raney nickel, areas up to 100 m 2 /g show high catalytic activity during water electrolysis heterogenous organic synthesis. However, low porosity small average pore diameter limit their application devices utilizing...
We present a nanomesh material that is widely applicable in variety of sustainable-applications requiring high surface area electrodes such as batteries, electrocatalytic convertors, fuel cells and hydrogen production. The three-dimensional nanowire (metal) grid structure with highly regular internal dimensions. hexagonally organized vertical nanowires are horizontally interconnected to its three neighboring nanowires. As result, it combines porosity an unprecedented surface-to-volume ratio....