A5063020974- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Electrochemical Analysis and Applications
- Advanced battery technologies research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Extraction and Separation Processes
- Ionic liquids properties and applications
- Transition Metal Oxide Nanomaterials
- Crystallography and molecular interactions
- Electrochemical sensors and biosensors
- CO2 Reduction Techniques and Catalysts
- Metal-Organic Frameworks: Synthesis and Applications
- Chemical and Physical Properties in Aqueous Solutions
- Electrostatics and Colloid Interactions
- Covalent Organic Framework Applications
- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Carbon dioxide utilization in catalysis
Swansea University
2020-2021
University of Liverpool
2014-2019
Liverpool Hospital
2018-2019
University of Leicester
2019
Abstract Proton conduction is a fundamental process in biology and devices such as proton exchange membrane fuel cells. To maximize conduction, three-dimensional pathways are preferred over one-dimensional pathways, which prevent two dimensions. Many crystalline porous solids to date show conduction. Here we report molecular cages with conductivities (up 10 −3 S cm −1 at high relative humidity) that compete extended metal-organic frameworks. The structure of the organic cage imposes pathway...
Electric vehicle battery electrodes are delaminated ultra-fast using high-powered ultrasound, separating active materials from the foil current collectors.
The development of selective electrocatalysts for CO<sub>2</sub> reduction in water offers a sustainable route to carbon based fuels and feedstocks.
Abstract The reduction of dioxygen in the presence sodium cations can be tuned to give either superoxide or peroxide discharge products at electrode surface. Control mechanistic direction these processes may enhance ability tailor energy density sodium–oxygen batteries (NaO 2 : 1071 Wh kg −1 and Na O 1505 ). Through spectroelectrochemical analysis a range non‐aqueous solvents, we describe dependence on electrolyte solvent subsequent interactions formed between + − . solvents form remove [Na...
A critical and detailed assessment of using Shell Isolated Nanoparticles for Enhanced Raman Spectroscopy (SHINERS) on different electrode substrates was carried out, providing relative enhancement factors, as well an evaluation the distribution shell-isolated nanoparticles upon surfaces. The chemical makeup surface layers formed lithium metal electrodes mechanism oxygen reduction reaction carbon relevant to lithium–oxygen cells are studied with employment SHINERS technique. enhanced signal...
A one-pot sol-gel autocombustion synthesis for carbon coated antimony microparticles has been developed. The initial capacities of this material were 647 mAhg−1Sb vs. Li and 527 Na, with a rate capability (8C: 398 356 Na respectively) cyclability (cycle 120 capacity retention: 86% Li, 91% Na). synthesised Sb was found to be superior commercial similar particle size (ca. 5–50 μm), which is attributed coating. In situ Raman analysis revealed differences between the materials, regarding their...
Fundamental studies of dioxygen electrochemistry relevant to metal-air batteries commonly require conductive supporting salts, such as tetraalkylammonium, sustain redox processes in nonaqueous electrolytes. Electrochemical analysis the formation and oxidation superoxide on glassy carbon gold working electrodes has shown a decrease reversibility lowering oxygen reduction rate constant when tetraalkylammonium cation alkyl chain length is increased. Probing interfacial regions Au using situ...
Abstract The reduction of dioxygen in the presence sodium cations can be tuned to give either superoxide or peroxide discharge products at electrode surface. Control mechanistic direction these processes may enhance ability tailor energy density sodium–oxygen batteries (NaO 2 : 1071 Wh kg −1 and Na O 1505 ). Through spectroelectrochemical analysis a range non‐aqueous solvents, we describe dependence on electrolyte solvent subsequent interactions formed between + − . solvents form remove [Na...
Application of synchrotron X-ray scattering to probe the atomic structure interface between Pt(111) electrodes and non-aqueous acetonitrile electrolytes.
The integration of lithium-ion batteries (LIB) into transportation through the implementation hybrid and electric vehicles is driving fundamental research improving their performance lifetime. rapid production new by several popular brands also raises question how much material will eventually need to be reused or recycled. With a combination an enhanced analysis commercially utilized electrodes with chemical knowledge, answers scientific challenges lithium ion aid in not only battery...
The deposition and dissolution of sodium superoxide (NaO2) was investigated by atomic force microscopy. Rectangular prisms consisting 8 smaller sub-structures grew from NaO2 platelets, when discharged in 0.5 M NaClO4, diethylene glycol dimethyl ether on highly ordered pyrolytic graphite. During oxidation the are conserved. Ring-like structures Na2CO3 200 nm diameter remain at end oxidation.
Atomic force microscopy and cyclic voltammetry are used to probe how ionic surfactant adsorbed layer structure affects redox processes at deep eutectic solvent (DES)/graphite interfaces. Unlike its behavior in water, sodium dodecyl sulfate (SDS) DESs only adsorbs as a complete of hemicylindrical hemimicelles far above critical micelle concentration (CMC). Near the CMC it forms tail-to-tail monolayer open-circuit potential (OCP) positive potentials, desorbs negative potentials. In contrast,...
Surface layers on lithium battery electrodes play a vital role in affecting performance, ageing mechanics and safety. Particularly, the solid electrolyte interphase (SEI), which is protecting layer formed negative electrode of lithium-ion batteries as result decomposition, significantly impacts upon irreversible charge “loss”, rate capability, cyclability, exfoliation graphite The investigation surface formation also important understanding operation lithium-oxygen battery. non-aqueous cell...
The non-aqueous lithium-oxygen battery is one of a host emerging opportunities available for enhanced energy storage [1]. Unlike conventional where the reagents are contained within cell, cell uses dioxygen from atmosphere to electrochemically form discharge product lithium peroxide. Degrees reversible oxidation and formation peroxide has been demonstrated in number electrolyte classes, mostly notably dimethysulfoxide based electrolytes [2], thus making potential device. A schematic...
Non-aqueous alkali metal oxygen batteries are a family of emerging opportunities for enhanced energy storage. 1 Ideally the cathodic reactant (oxygen) is provided from atmosphere and electrochemically reduced in presence cations to form species (ROS) such as peroxides superoxides. On charge formed ROS then electroxidised returned at anode (Li, Na, K). The electrons used complete these redox reactions through an external circuit connecting two electrodes can be do work, i.e. power phone or...