A5033094406- Advanced Sensor and Energy Harvesting Materials
- ZnO doping and properties
- Nanomaterials and Printing Technologies
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Surface Modification and Superhydrophobicity
- CO2 Reduction Techniques and Catalysts
- Fluid Dynamics and Thin Films
- Pickering emulsions and particle stabilization
- Ga2O3 and related materials
- Conducting polymers and applications
- Advanced Materials and Mechanics
- Advanced Thermoelectric Materials and Devices
- Wireless Body Area Networks
- Graphene research and applications
- Carbon dioxide utilization in catalysis
- Catalytic Processes in Materials Science
- IoT Networks and Protocols
- Energy Harvesting in Wireless Networks
- Electrocatalysts for Energy Conversion
- nanoparticles nucleation surface interactions
- Advanced battery technologies research
- Nanoporous metals and alloys
- Block Copolymer Self-Assembly
- Anodic Oxide Films and Nanostructures
CSIRO Manufacturing
2023
UNSW Sydney
2019-2022
RMIT University
2018
Yangzhou University
2007
Abstract Surface patterning of liquid metals (LMs) is a key processing step for LM‐based functional systems. Current methods are substrate specific and largely suffer from undesired imperfections—restricting their widespread applications. Inspired by the universal catechol adhesion chemistry observed in nature, LM inks stabilized assembly naturally abundant polyphenol, tannic acid, has been developed. The intrinsic adhesive properties acid containing multiple catechol/gallol groups, allow to...
In nature, snowflake ice crystals arrange themselves into diverse symmetrical six-sided structures. We show an analogy of this when zinc (Zn) dissolves and crystallizes in liquid gallium (Ga). The low-melting-temperature Ga is used as a "metallic solvent" to synthesize range flake-like Zn crystals. extract these metallic from the metal solvent by reducing its surface tension using combination electrocapillary modulation vacuum filtration. metal-grown feature high morphological diversity...
Colloidal liquid metal alloys of gallium, with melting points below room temperature, are potential candidates for creating electrically conductive and flexible composites. However, inclusion micro- nanodroplets into soft polymeric matrices requires a harsh auxiliary mechanical pressing to rupture the droplets establish continuous pathways high electrical conductivity. such destructive strategy reduces integrity Here, this problem is solved by incorporating small loading nonfunctionalized...
Liquid metals can play an essential role in the generation of electrically conductive composites for electronic devices and environmental sensing remediation applications. Here, a method growing polyaniline nanofibrous network at liquid metal nanoparticle interfaces is demonstrated generating hybrid metal–polymer nanocomposites. The investigation shows that initial functionalization step nanoparticles with polymerization enhancer providing stable specific nucleation points formation network....
Liquid metals are fast becoming a new class of universal and frictionless additives for the development multifunctional soft flexible materials. Herein, nanodroplets eutectic gallium-indium alloy, which is liquid at room temperature, were used as platform formulation electrically conductive magnetically responsive gels with incorporation Fe3O4 nanoparticles. The nanoadditives prepared in situ within water-based solution polyvinyl alcohol. A borax cross-linking reaction was then performed to...
A green carbon capture and conversion technology offering scalability economic viability for mitigating CO2 emissions is reported. The uses suspensions of gallium liquid metal to reduce into carbonaceous solid products O2 at near room temperature. nonpolar nature the interface allows instantaneously exfoliate, hence keeping active sites accessible. co-contributor silver-gallium rods ensures a cyclic sustainable process. overall process relies on mechanical energy as input, which drives...
Abstract Room‐temperature synthesis of 2D graphitic materials (2D‐GMs) remains an elusive aim, especially with electrochemical means. Here, it is shown that liquid metals render this possible as they offer catalytic activity and ultrasmooth templating interface promotes Frank–van der Merwe regime growth, while allowing facile exfoliation due to the absence interfacial forces a nonpolar liquid. The 2D‐GMs are formed at low onset potential can be in situ doped depending on choice organic...
The introduction of trace impurities within the doping processes semiconductors is still a technological challenge for electronics industries. By taking advantage selective enrichment liquid metal interfaces, and harvesting doped oxide semiconductor layers, complexity process can be mitigated high degree control over outcomes achieved. Here, mechanism natural filtering preparation 2D semiconducting sheets based on different migration tendencies metallic elements in bulk competing enriching...
The intermetallic wetting between metallic liquids and solid surfaces enables a high-resolution liquid metal patterning strategy which is widely applicable for fabricating functional patterns on versatile substrates planar/3D geometries.
Abstract Metal foams are highly sought‐after porous structures for heterogeneous catalysis, which fabricated by templating, injecting gas, or admixing blowing agents into a metallic melt at high temperatures. They also require additional catalytic material coating. Here, low‐melting‐point liquid metal is devised the single‐step formation of in mild aqueous environments. A hybrid foam fabrication process presented via simultaneous chemical foaming, melting, and sintering reaction...
Although it remains unexplored, the direct synthesis and expulsion of metals from alloys can offer many opportunities. Here, such a phenomenon is realized electrochemically by applying polarizing voltage signal to liquid alloys. The induces an abrupt interfacial perturbation at Ga-based alloy surface results in unrestrained discharge minority elements, as Sn, In, Zn, alloy. We show that this occur either changing tension or inducing reversible redox reaction alloys' interface. expelled...
Abstract 2D transition metal dichalcogenides (TMDs) play increasingly significant roles in research and future optoelectronics. However, the large‐scale deposition of TMDs remains challenging due to sparse nucleation substrate dependency. Liquid metals can offer effective solutions meet these challenges their reactive, non‐polarized, templating properties. Here, self‐deposition molybdenum sulfide is shown by introducing a precursor onto surface eutectic alloy gallium indium (EGaIn). EGaIn...
Abstract Liquid metal droplets of gallium (Ga) and Ga‐based alloys are traditionally incorporated as deformable additives into soft elastomers to make them conductive. However, such a strategy has not been implemented develop conductive sponges with real sponge‐like characteristics. Herein, polyurethane‐based Ga microdroplets embedded inside the polyurethane walls developed. The liquid phase (at 45 °C) solid room temperature) transition fillers shows temperature‐dependent functional...
Transforming natural resources to energy sources, such as converting CH4 H2 and carbon, at high efficiency low cost is crucial for many industries environmental sustainability. The temperature requirement of conversion regarding the current methods remains a critical bottleneck their practical uptake. Here we report an approach based on gallium (Ga) liquid metal droplets, Ni(OH)2 cocatalysts, mechanical input that offers low-temperature scalable into carbon. Mainly driven by triboelectric...
Nanostructure-based leaf-like polyaniline (PANI) (see figure) has been fabricated successfully in the presence of surfactant F127. It is found that building blocks PANI can be tuned from nanofibers (ca. 25 nm diameter) to nanotubes 100 with increasing monomer concentration. The proposed synthetic method will provide insight into synthesis oriented nanostructures polymer materials by soft-template strategy.
Liquid metals can offer extraordinary properties for application in the field of sensors, yet their potential has not been fully realised.
Field's metal particles synthesised by mechanical agitation exhibit peculiar core–shell structure and functionality.
Metal melt extrusion in gaseous or vacuum environments is a classical approach for forming wires. However, such extrusions have not been investigated ionic solutions. Here, we use liquid metal (LM) gallium (Ga) and its eutectic alloy with indium (EGaIn) to explore the possibility of electrochemical wires study tuning self-liming oxide layers as coating these formed during process. By controlling surface tension LM immersed an electrolyte, through electrocapillary effect, enable The...
There is a strong demand for developing tunable and facile routes synthesizing gas-sensitive semiconducting compounds. The concept of micro- nanoparticles metallic compounds in process, which relies on liquid metals, presented here. This liquid-based ultrasonication procedure within additional elements (In, Sn, Zn) are incorporated into Ga that sonicated secondary solvent. We investigate metal sonication dimethyl sulfoxide (DMSO) water to show their impact the size, morphology, crystal...
This work presents the room temperature nitridation of gallium-based liquid metal alloy particles during sonication.
Low melting point eutectic systems, such as the gallium-indium (EGaIn) alloy, offer great potential in domain of nanometallurgy; however, many their interfacial behaviors remain to be explored. Here, a compositional change EGaIn nanoalloys triggered by polydopamine (PDA) coating is demonstrated. Incorporating PDA on surface renders core-shell nanostructures that accompany Ga-In phase separation within nanoalloys. The shell keeps depleting Ga3+ from when synthesis proceeds, leading...
Direct patterning of liquid metals <italic>via</italic> photolithography.
Mitigation of the health hazards caused by Pb is necessary. A liquid metal-based synthesis method delivers unit-cell-thick layers PbO with comparable piezoelectric response and band gap to PZT thick films while posing reduced toxicity.