A5087964809- Graphene research and applications
- Carbon Nanotubes in Composites
- Electrohydrodynamics and Fluid Dynamics
- Diamond and Carbon-based Materials Research
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nanopore and Nanochannel Transport Studies
- Fullerene Chemistry and Applications
- ZnO doping and properties
- Ga2O3 and related materials
- Graphene and Nanomaterials Applications
- Fluid Dynamics and Thin Films
- Advanced Photocatalysis Techniques
- Nanowire Synthesis and Applications
- Microfluidic and Bio-sensing Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Carbon and Quantum Dots Applications
- Pickering emulsions and particle stabilization
- Characterization and Applications of Magnetic Nanoparticles
- 2D Materials and Applications
- Nanomaterials for catalytic reactions
- Microfluidic and Capillary Electrophoresis Applications
- Quantum Dots Synthesis And Properties
- Rheology and Fluid Dynamics Studies
- Plant Surface Properties and Treatments
Flinders University
2014-2024
The University of Adelaide
2018-2019
The University of Western Australia
2012
Abstract A simple and fast “top‐down” protocol is introduced herein to prepare solution processable few‐layer phosphorene nanosheets using vortex fluidic mediated exfoliation under near‐infrared (NIR) pulsed laser irradiation. This novel shear‐exfoliation method requires short processing times produces highly crystalline, atomically thin (4.3 ± 0.4 nm). The as‐prepared are used as an effective electron transporting material (ETM) for low‐temperature processed, planar n‐i‐p perovskite solar...
Abstract A method for controlling the self‐assembly of fullerene C 60 molecules into nanotubules in fcc phase, devoid entrapped solvent, has been established a thin film microfluidic device. The micron length nanotubules, with individual hollow diameters 100 to 400 nm, are formed under continuous flow processing during high shear micromixing water and toluene solution fullerene, absence surfactant, without need further down‐stream processing. TEM revealed pores on surface nanotubes, isolated...
Shear stress in dynamic thin films, as vortex fluidics, can be harnessed for generating non-equilibrium conditions, but the nature of fluid flow is not understood. A rapidly rotating inclined tube fluidic device (VFD) imparts shear (mechanical energy) into a film liquid, depending on physical characteristics liquid and rotational speed,
Abstract Lateral slicing of micron length carbon nanotubes (CNTs) is effective on laser irradiation the materials suspended within dynamic liquid thin films in a microfluidic vortex fluidic device (VFD). The method produces sliced CNTs with minimal defects absence any chemical stabilizers, having broad distributions centred at ca 190, 160 nm and 171 for single, double multi walled respectively, as established using atomic force microscopy supported by small angle neutron scattering solution...
High shear vortex fluidics coupled with NIR affords luminescent carbon dots as a scalable process.
Bubbling H(2) into colloidal suspensions of 2D sheets graphene or h-BN stabilised in water with p-phosphonic acid calix[8]arene, and pre-treated to bind Pd(II) Pt(IV) species their surfaces, is effective decorating the material nanoparticles noble metals approximately 5 nm diameter.
Stable nanorings of SWCNTs devoid surfactants are accessible by combining liquid–liquid interfacial tension and mechanoenergy within an energy efficient thin film microfluidic vortex fluidic device (VFD).
A facile one step process has been developed to fabricate high yield graphene scrolls directly from graphite flakes using a sustainable metrics, with the 3D nanomaterial having remarkable properties, unraveling into buckled sheets >450 °C and forming highly conducting electrical contacts.
Controlling the size and morphology of gold nanoparticles occurs in absence added reducing agents or other excipients such as surfactants, on UV irradiation ( λ 254 nm) aqueous auric acid (H[AuCl 4 ]) a thin film liquid vortex fluidic device (VFD) within rapidly rotating tilted quartz tube. This involves contact electrification (CE), which at solid−liquid interface with oxidation water photoinduced, forming hydroxyl radical, OH • . In air, redox couple is reduction 3 O 2 to superoxide...
The curvature in coiled single-walled carbon nanotubes (SWCNTs) rings impacts on their properties relative to straight CNTs, but the availability of such is limited. This has been addressed developing a continuous flow method for fabricating SWCNTs high yield (80%) using vortex fluidic device (VFD), absence any toxic chemicals and surfactants. VFD thin film microfluidic platform rapidly rotating angled glass tube with processed liquid driven up out tube. Magnetic force microscopy (MFM)...
Reduced graphene oxide (rGO) is generated from GO dispersed in water under continuous flow the absence of harsh reducing agents, a vortex fluidic device, such that processing scalable with uniformity product.
Patterns of noble metal nanoparticles (NMNPs) ruthenium and platinum are formed on <italic>p</italic>-phosphonic acid calix[8]arene stabilized graphene in water with hydrogen gas induced reduction the ions.
Abstract A method for controlling the self‐assembly of fullerene C 60 molecules into nanotubules in fcc phase, devoid entrapped solvent, has been established a thin film microfluidic device. The micron length nanotubules, with individual hollow diameters 100 to 400 nm, are formed under continuous flow processing during high shear micromixing water and toluene solution fullerene, absence surfactant, without need further down‐stream processing. TEM revealed pores on surface nanotubes, isolated...
A process for fabricating biodegradable polymer films from renewable feedstocks, namely, agar, alginate, and glycerol, with enhanced mechanical properties has been developed. critical step in the involves use of high shear stress micromixing a liquid thin film an energy-efficient upsized vortex fluidic device (VFD) operating under confined-mode conditions. The VFD having 50 mm-OD diameter tube titled at 45° requires fraction processing time energy consumption relative to standard 20 same...
Thin film microfluidics are developed for a wide range of applications, including the synthesis various types nanocarbon material, involving both ‘top down’ and ‘bottom up’ continuous flow processing. This type processing addresses scalability at inception science, is applicable not just to nanocarbon, but also composites or hybrid material where one more components nanocarbon. review introduces different thin liquid subjected shear stress (mechanical energy), then provides comprehensive...
The manipulation of topological fluid flow to fabricate spicular C<sub>60</sub> coated polystyrene beads under shear stress in the vortex fluidic device (VFD).
Highly processible graphene oxide (GO) has a diversity of applications as material readily dispersed in aqueous media. However, methods for preparing such free-standing GO use hazardous and toxic reagents generate significant waste streams. This is an impediment uptake any application, developing sustainable technologies industries, overcoming this remains major challenge. We have developed robust scalable continuous flow method fabricating directly from graphite 30% hydrogen peroxide which...
Applications of multi-walled carbon nanotubes (MWCNTs) benefit from the availability specific lengths material while keeping outer walls pristine, for example, applications requiring vertically aligned tubes.
A fast and sustainable technique in catalytically degrading organic dyes under flow is reported. It involves the use of three different applications high-shear intense micro-mixing vortex fluidic device (VFD), including material fabrication, reactor coating, "banding". The active catalytic a composite magnetite nanoparticles Cu3(PO4)2 nanoflowers (MNPCuNFs), 8–10 μm diameter, which are generated VFD within 30 min. MNPCuNFs magnetically centrifugally held against surface rapidly rotating tube...
Ultrathin gallium oxide sheets formed under continuous flow from metal are highly insulating with electrocatalytic activity for hydrogen evolution.
Polysulfone (PSF) ultrafiltration membranes were fabricated using a continuous flow micro-mixing process under high shear in vortex fluidic device (VFD), followed by phase inversion of the cast solution. This involved investigating effect PSF concentrations (10, 15, and 20%) rotational speed VFD for mixing at 30 °C on membranes' properties. These compared with variants conventional batch relation to structural, morphological, thermal, mechanical properties, addition aspects hydrophilicity...
Abstract Reducing resistance in silicon‐based devices is important as they get miniaturized further. 2D materials offer an opportunity to increase conductivity whilst reducing size. A scalable, environmentally benign method developed for preparing partially oxidized gallium/indium sheets down 10 nm thick from a eutectic melt of the two metals. Exfoliation planar/corrugated oxide skin achieved using vortex fluidic device with variation composition across determined Auger spectroscopy. From...
Hydrogels have been widely used to entrap biomolecules for various biocatalytic reactions. However, solute diffusion in these matrices initiate such reactions can be a very slow process. Conventional mixing remains challenge as it cause irreversible distortion or fragmentation of the hydrogel itself. To overcome diffusion-limit, shear-stress-mediated platform named portable vortex-fluidic device (P-VFD) is developed. P-VFD which consists two main components, (i) plasma oxazoline-coated...