A5006431676- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Electrochemical Analysis and Applications
- Inorganic Fluorides and Related Compounds
- Crystallization and Solubility Studies
- Conducting polymers and applications
- Extraction and Separation Processes
- Transition Metal Oxide Nanomaterials
- Analytical Chemistry and Sensors
- Microfluidic and Capillary Electrophoresis Applications
- Nanopore and Nanochannel Transport Studies
- Advanced Memory and Neural Computing
- Electron and X-Ray Spectroscopy Techniques
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical sensors and biosensors
- Ion-surface interactions and analysis
- Crystallography and molecular interactions
- Supercapacitor Materials and Fabrication
- Semiconductor materials and interfaces
- Electrocatalysts for Energy Conversion
- Ionic liquids properties and applications
- Drug Solubulity and Delivery Systems
- Chemical and Physical Properties in Aqueous Solutions
University of Warwick
2016-2024
Coventry (United Kingdom)
2016-2017
AstraZeneca (United Kingdom)
2016
Two dimensional (2D) semiconductor materials, such as molybdenum disulfide (MoS2) have attracted considerable interest in a range of chemical and electrochemical applications, for example, an abundant low-cost alternative electrocatalyst to platinum the hydrogen evolution reaction (HER). While it has been proposed that edge plane MoS2 possesses high catalytic activity HER relative "catalytically inert" basal plane, this conclusion drawn mainly from macroscale (voltammetric) measurements,...
Understanding dehydration of Prussian white systems to enable processability water-based electrodes for sustainable and high capacity sodium-ion batteries.
Abstract As global energy storage demand increases, sodium‐ion batteries are often considered as an alternative to lithium‐ion batteries. Hexacyanoferrate cathodes, commonly referred Prussian blue analogues (PBAs), of particular interest due their low‐cost synthesis and promising electrochemical response. However, because they consist ~50 wt% cyanide anions, a possible release highly toxic gases poses significant safety risk. Previously, we observed the evolution (CN) 2 during cycling via...
The surface charge and topography of human hair are visualized synchronously at the nanoscale using scanning ion conductance microscopy (SICM), a nanopipette probe technique that uses local currents to image physicochemical properties interfaces. By combining SICM data with finite element method (FEM) simulations solve for transport under bias, one is able quantitatively correlate colocated topography. samples studied herein, from 25-year-old Caucasian male light (as an exemplar), reveal...
The in-operando monitoring of the cell's kinetic thermal and electrochemical processes during operation is a key requirement to understand battery performance, improve safety extend life. This research presents in-situ measurements strain temperature evolution within graphite electrode electromechanical lithiation delithiation. By embedding distributed fibre optics sensor, frequency shift associated with both are decoupled, allowing real-time measurement solid electrolyte interface formation...
Abstract Invited for this month's cover picture is the group of Torsten Brezesinski at KIT. The shows gases evolving from a Prussian white cathode used in Na‐ion batteries presence either NaPF 6 ‐ or NaClO 4 ‐containing electrolyte. H 2 and CO are detected, as well (CN) , which formation mechanism proposed. Read full text Research Article 10.1002/batt.202300595 .
A versatile in situ multi-microscopy approach to study the dissolution kinetics of single crystals is described, using loop diuretic drug furosemide as a testbed demonstrate utility approach. Using optical microscopy and scanning ion-conductance combination, rate individual crystallographically independent crystal faces can be measured quantitatively while providing direct visualization evolution morphology real time three dimensions. Finite element method models experimental data enables...
Abstract Instrumented battery cells (i.e. those containing sensors) and smart (with integrated control communication circuitry) are essential for the development of next-generation technologies, such as Sodium-ion Batteries (SIBs). The mapping monitoring parameters, example quantification temperature gradients, helps improve cell designs optimise management systems. Integrated sensors must be protected against harsh electrolytic environment. State-of-the-art coatings include use Parylene...
NADH electro-oxidation is faster, but more prone to fouling, at HOPG compared pBDD.
Monitoring crystallization in real time at the nanoscale can provide valuable new insights into nucleation process. Herein, application of nanopipettes as nanoreactors to study organic materials (pharmaceutical crystals) is demonstrated, using bicalutamide (BIC), an active pharmaceutical ingredient prostate cancer drug CASODEX, a model. Crystallization achieved antisolvent system, whereby nanopipette containing aqueous inert salt solution brought contact with dimethyl sulfoxide (DSMO)...
We illustrate a simple and effective electrolyte extraction methodology from commercial 18650 lithium-ion cells. This is based on liquid-liquid step, which highlighted for robustness, reproducibility, reliability. assess the consumption of by tracking compositional changes using liquid-state nuclear magnetic resonance (NMR) spectroscopy, supported differential thermal analysis (DTA) before after cell cycling. An method that monitors dynamics presented shows impact these throughout cell’s...
The dissolution kinetics of individual microscale bicalutamide (BIC) form-I crystals are tracked over time using in situ atomic force microscopy (AFM), with the evolution crystal morphology used to obtain quantitative data on via finite element method (FEM) modeling reaction-diffusion problem. Dissolution is found involve pit formation and roughening all dissolving surfaces BIC crystal, this has a strong influence overall process kinetics. While exposed faces (100), {051}, {1̅02} show that...
The impacts on battery cell ageing from high current operation are investigated using commercial cells. This study utilised two tests–(i) to establish the maximum limits before failure and (ii) applying this until failure. Testing was performed determine how far cycling parameters could progress beyond manufacturer’s recommendations. Current fluxes were increased up 100 C conditions without undergoing catastrophic Charge discharge capabilities possible at magnitudes of 1.38 4.4 times,...
Olivine LiMnxFe1−xPO4 (LMFP) cathodes are gaining attention as a promising alternative to LiFePO4 (LFP) for lithium‐ion batteries (LIBs), offering higher energy density while maintaining lower costs and improved safety compared traditional layered oxide cathodes. However, their low electronic conductivity remains challenge. One effective strategy enhance electrode kinetics is incorporating carbon additives during fabrication. This study examines the role of conductive optimization in...
The rapid growth of the global battery demand has accelerated search for efficient low-cost and sustainable batteries. Among them, sodium-ion batteries (SIBs) represent one most promising electrochemical energy storage systems stationary light vehicle applications. growing interest in SIBs been catalyzed by adoption this technology several companies worldwide. Despite great achievements recently announced, challenges persist. is limited density especially when compared to lithium-ion To...
Lithium ion batteries (LIBs) are the preferred rechargeable battery choice for a range of electric technologies, and have increasingly become an integral part our lives due to their high energy density, low memory effect, self-discharge good cycle life during operation. However, they complicated by variety chemical, electrochemical physical processes that take place within dynamic microstructures (anodes cathodes). Hence, extensive research efforts being invested in improving existing...
Sodium-ion batteries (SIBs) have been identified as one of the most promising alternative technologies for future stationary large-scale storage and light electromobility applications. Indeed, potential cost decrease with respect to lithium-ion technology, sustainability provided by using Earth abundant elements lead lower economic geopolitical impact. [1,2] Great achievements in terms materials development reported recent years. However, further work is still needed fully understand...