Research journal publications (*first author articles)

Nonuniform compensation of current density distribution in polymer electrolyte fuel cells by local heating

Development of a 4D high-speed neutron imaging technique for imaging water distribution in a PEFC

A nature-inspired solution for water management in flow fields for electrochemical devices

Nature-inspired chemical engineering approach to solving flooding issues in electrochemical devices - lizard skin

Current and temperature mapping fuel cellCurrent and temperature mapping fuel cell
Nature inspired hydrogen fuel cell flow field design - inspired by lizardsNature inspired hydrogen fuel cell flow field design - inspired by lizards
Batteries in disposable E-cigarettesBatteries in disposable E-cigarettes
Up in smoke: Considerations for lithium-ion batteries in disposable e-cigarettes

Rechargable Li-ion battery cells are widely used in single-use e-cigarettes, although they have a capability of cycling over 700 times. Impact failure of the battery reaches 500 C. The disposal represents a huge waste of resources.

Nonuniform compensation of current density distribution in polymer electrolyte fuel cells by local heating

Development of a 4D high-speed neutron imaging technique for imaging water distribution in a PEFC

Effect of an easy-to-implement water management strategy on peformance and degradation of polymer electrolyte fuel cells

Intermittent switching between dry and wet gas during operation to improve performance stability.

Current and temperature mapping fuel cellCurrent and temperature mapping fuel cell
Current mapping fuel cellsCurrent mapping fuel cells
Molten salts battery materialsMolten salts battery materials
Electrochemical recovery of lithium-ion battery materials from molten salts by microstructural characterisation using X-ray imaging

Study looking at the recovery of cobalt in battery materials using molten salt electrolysis as a method to recycle battery materials.

High-speed 4D neutron computed tomography for quantifying water dynamics in polymer electrolyte fuel cells

Development of a 4D high-speed neutron imaging technique for imaging water distribution in a PEFC

Engineering catalyst layers for next-generation polymer electrolyte fuel cells: A review of design, materials and methods

Comprehensive review

Miniature fuel cell Neutron imagingMiniature fuel cell Neutron imaging
Fuel cell catalyst layersFuel cell catalyst layers
Compression metal flow field fuel cellCompression metal flow field fuel cell
Multi-length scale characterisation of compression on metal foam flow-field based fuel cells using X-ray computed tomography and neutron radiography

Compression process decreases pore size and narrows PSD of metal foams. Facilitates effective water removal due to high pressure drop.

Effect of reactant gas flow orientation on the current and temperature distribution in self-heating polymer electrolyte fuel cells (*)

Self-heating in unheated PEFCs increases cell temperature and recovers voltage. Temperature distributions form by uneven current, reactant and water distributions. A uniform temperature distribution could minimise performance degradation over time.

Microstructural evolution of battery electrodes during calendaring

Electrode with coarse architecture is prone to self-arrangement under calendaring. Calendaring exacerbates reaction heterogeneity and underutilisation of capacity.

Current and temperature distribution fuel cellCurrent and temperature distribution fuel cell
Battery electrodes during calendaringBattery electrodes during calendaring
Miniature fuel cellMiniature fuel cell
Use of X-ray computed tomography for understanding localised, along-the-channel degradation of polymer electrolyte fuel cells

Combined miniature fuel cell and X-ray CT. Significant regional variation in the extent of cathode degradation. Fuel cell carbon corrosion ASTs do not age electrodes homogeneously.

Rapid preparation of geometrically optimal battery electrode samples for nano scale X-ray characterisation

Novel laser-milling technique to prepare geometrically optimal samples for X-ray nano-tomography.

Characterisation of water management in metal foam flow-field based polymer electrolyte fuel cells using in-operando neutron radiography

Metal foam flow field enhances the uniformity in water distribution and is more tolerant to dehydration. Susceptible to flooding at low current density.

Battery electrodesBattery electrodes
Metal foam flow field fuel cellMetal foam flow field fuel cell
Short-circuiting fuel cellsShort-circuiting fuel cells
Effect of extended short-circuting in proton exchange membrane fuel cells

Catalyst durability, performance, TEM and XPS analysis of short-circuiting when used as an operational strategy to maintain PEFC temperature, hydration and performance.

A novel polymer electrolyte fuel cell flow-field: The through-plane array

Novel flow field concept for PEFC. Micro-hole array allows gas to exit under lands. Lower backpressure than parallel or serpentine designs.

Effect of cell compression on the water dynamics of a polymer electrolyte fuel cell using in-plane and through-plane in-operando neutron radiography

Neutron radiography and X-ray CT study of PEFC compression.

Flow field fuel cellsFlow field fuel cells
Water management fuel cell compressionWater management fuel cell compression
PCB fuel cell water distribution mappingPCB fuel cell water distribution mapping
Water distribution mapping in polymer electrolyte fuel cells using lock-in thermography (*)

New diagnostic technique using frequency variation thermal imaging to map the water distribution and sub-surface structure of the PEFC. Technique can be applied to any object, not just fuel cells, to image the internal structure.

Adjusted method to calculate an electric wheelchair power cycle: fuel cell implementation example (*)

Microtrip methodology to estimate power consumption of power wheelchair. Drive and power cycles. 160W FC for 521 km electric range and reduced lead-acid battery pack mass by 88%.

Effect of compression on the water management of polymer electrolyte fuel cells: An in-operando neutron radiography study

Mechanical compression effect on water management. Increased compression leads to larger water droplet build-up.

Electric wheelchair power cycleElectric wheelchair power cycle
Compression on water management fuel cellsCompression on water management fuel cells
Hydro-electrochemical impedance imagingHydro-electrochemical impedance imaging
Investigation of water generation and accumulation in polymer electrolyte fuel cells using hydro-electrochemical impedance imaging

New diagnostic technique applied to water management in PEFCs.

A lung-inspired printed circuit board polymer electrolyte fuel cell

Layer-wise PCB-based fractal lung-inspired cathode flow field. Cost effective and light weight method of fractal flow field development. Enhanced performance over serpentine flow field over a range of operating conditions and improved water management.

Design of experiments to generate a fuel cell electro-thermal performance map and optimise transitional pathways (*)

Air-cooled, open-cathode PEFC. Electro-thermal maps. Design of experiments (DoE)

Lung-inspired printed circuit board fuel cellLung-inspired printed circuit board fuel cell
Electro-thermal performance mapElectro-thermal performance map
Supercapacitors fabricated on a PCBSupercapacitors fabricated on a PCB
Integration of supercapacitors into printed circuit boards

Supercapacitor embedding in PCB design for flexible power systems. Proof-of-concept using commercial carbons in aqueous and all-solid state devices. High volumetric energy density of 0.5 mW cm-3 in all-solid state devices. Potential integration with established low-cost PCB fuel cells.

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