A5041324580- 2D Materials and Applications
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- MXene and MAX Phase Materials
- Genetic Associations and Epidemiology
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Electron and X-Ray Spectroscopy Techniques
- Additive Manufacturing and 3D Printing Technologies
- Carbon Nanotubes in Composites
- Copper-based nanomaterials and applications
- Pickering emulsions and particle stabilization
- Additive Manufacturing Materials and Processes
- Layered Double Hydroxides Synthesis and Applications
- Concrete and Cement Materials Research
- Cystic Fibrosis Research Advances
- Genomics and Rare Diseases
- Concrete Corrosion and Durability
- Masonry and Concrete Structural Analysis
- Ferroelectric and Negative Capacitance Devices
- Magnetic Properties and Synthesis of Ferrites
- Polymer Nanocomposite Synthesis and Irradiation
- Ion-surface interactions and analysis
- Genetic Syndromes and Imprinting
- Health, Environment, Cognitive Aging
University of Surrey
2021-2024
Statistical Service
2023
Trinity College Dublin
2009-2020
Advanced Materials and BioEngineering Research
2017-2018
22q11 Ireland
2016
University of Oxford
2011-2014
Science Oxford
2012
If they could be easily exfoliated, layered materials would become a diverse source of two-dimensional crystals whose properties useful in applications ranging from electronics to energy storage. We show that compounds such as MoS(2), WS(2), MoSe(2), MoTe(2), TaSe(2), NbSe(2), NiTe(2), BN, and Bi(2)Te(3) can efficiently dispersed common solvents deposited individual flakes or formed into films. Electron microscopy strongly suggests the material is exfoliated layers. By blending this with...
Two-dimensional (2D) transition metal carbides and nitrides (MXenes) have shown outstanding performances in electrochemical energy storage many other applications. Delamination of MXene flakes water produces colloidal solutions that are used to manufacture all kinds products (thin films, coatings, electrodes, etc.). However, the stability solutions, which is critical importance their application, remains largely unexplored. Here we report on degradation delaminated-Ti3C2Tx (T represents...
2D transition-metal carbides and nitrides, known as MXenes, have displayed promising properties in numerous applications, such energy storage, electromagnetic interference shielding, catalysis. Titanium carbide MXene (Ti3 C2 Tx ), particular, has shown significant energy-storage capability. However, previously, only micrometer-thick, nontransparent films were studied. Here, highly transparent conductive Ti3 their application transparent, solid-state supercapacitors are reported. Transparent...
This work describes silicon nanoparticle-based lithium-ion battery negative electrodes where multiple nonactive electrode additives (usually carbon black and an inert polymer binder) are replaced with a single conductive binder, in this case, the conducting polymerPSS. While enabling production of well-mixed slurry-cast high content (up to 95 wt %), combination eliminates well-known occurrence capacity losses due physical separation traditional inorganic during repeated...
Time-controlled plasma treatment of MoS 2 FETs improves carrier transport due to the presence a two-dimensional oxide phase.
Abstract A comprehensive nanoscale understanding of layered double hydroxide (LDH) thermal evolution is critical for their current and future applications as catalysts, flame retardants oxygen performers. In this report, we applied in situ transmission electron microscopy (TEM) to extensively characterise the progressions nickel-iron containing (Ni-Fe) LDH nanomaterials. The combinative approach TEM selected area diffraction (SAED) yielded both a morphological crystallographic such...
Liquid phase exfoliation can be used to convert layered crystals of nickel hydroxide into nanosheets in relatively large quantities and without the need for ion intercalation.
We have studied the exfoliation and dispersion of hexabenzocoronene (HBC) in 28 different solvents. see a wide range dispersed concentrations aggregation states, all which can be related to solvent properties. To first approximation, concentration is maximized for solvents with Hildebrand solubility parameter close 21 MPa(1/2), similar graphitic materials such as nanotubes graphene. also dependence absorbance photoluminescence HBC both good solvent, cyclohexyl pyrrolidone (CHP), poor...
In Cr<sub>2</sub>O<sub>3</sub>, Ni is a more effective dopand than Mg due to its higher solubility and capability contribute the VB, improving holes dispersion.
Liquid-phase exfoliation of layered materials offers a large-scale approach toward the synthesis 2D nanostructures. Structural properties can however change during transition from bulk to state. Any such changes must be examined and understood for successful implementation In this work, we demonstrate nonbulk stacking sequences in few-layer MoS2 WS2 nanoflakes produced by liquid-phase exfoliation. Our analysis shows that derived its counterparts translational shifts layers. No structural...
This paper investigates the formation of process by-products during laser processing titanium alloy powders by Selective Laser Melting (SLM). The study was carried out printing Ti6AL4V parts using a production scale SLM system (Renishaw RenAM500 M). By-product particles were obtained on surface powder removed from area around where pulsed treatments had been out. examined in this damaged along with condensate. found to exhibit deshelling, fracture, and collision damage. Based TEM SEM...
The maximum magnetisation (saturation magnetisation) obtainable for iron oxide nanoparticles can be increased by doping the nanocrystals with non-magnetic elements such as zinc. Herein, we closely study how only slightly different synthesis approaches towards doped strongly influence resulting sub-nano/atomic structure. We compare two co-precipitation approaches, where vary base (NaOH versus NH3), and a thermal decomposition route. These methods are most commonly applied ones synthesising...
Structural characterization of 2D nanomaterials is an important step towards their future applications. In this work we carried out imaging and structural analysis h-BN produced by chemical-exfoliation, emphasizing the stacking order in few-layer sheets. Our analysis, for first time has shown conclusively that non-bulk can exist h-BN.
Epidemic obesity is the most important risk factor for prediabetes and type 2 diabetes (T2D) in youth as it adults. Obesity shares pathophysiological mechanisms with T2D likely to share part of genetic background. We aimed test if weighted scores (GRSs) T2D, fasting glucose (FG) insulin (FI) predict glycaemic traits there a causal relationship between impaired metabolism children adolescents. Genotyping 42 SNPs established by genome-wide association studies FG FI was performed 1660 Italian...
Carbon nanofoam (CNF) is a low-density, high-surface-area material formed by aggregation of amorphous carbon nanoparticles into porous nanostructures. We report the use pulsed infrared laser to prepare CNF from graphene oxide (GO) target material. Electron microscopy shows that films consist dendritic strings form web-like three-dimensional structures. The conductivity these structures can be modified using as nanostructured scaffold for gold deposited sputter coating, controllably...
Luminescent zinc oxide nanoparticles were synthesized <italic>via</italic> a facile one-pot sol–gel synthesis route using acetate dihydrate and potassium hydroxide as cheap precursors. It is demonstrated that dissolved oxygen plays key role in the of nanoparticles.
Depending on interparticle structure and chemical behavior, fillers greatly influence the mechanical properties in rubber compounds. In this work, of filler–matrix versus filler–filler interaction a silica nanoparticle–rubber composite was investigated. For purpose, nanostructured microraspberry particles with different surface were designed prepared using colloidal two kinds silane agents, one coating agent (triethoxyoctylsilane, OCTEO) coupling (bis(triethoxysilylpropyl)tetrasulfide,...
Abstract The photocatalytic (PC) performance of titanium dioxide (TiO 2 ) nanoparticles strongly depends on their specific surface, the presence crystal defects, phase, and exposed facets. In order to understand which these factors contributes most significantly PC activity TiO colloids, all them have be individually analyzed. This study entails synthesis five anatase nanocrystal samples. By maintaining same reactant ratios as well hydrothermal sol–gel route only varying autoclaving time or...
Herein, the formation of hollow microballoons derived from superparamagnetic iron oxide nanoparticles with silica patches is reported. Depending on experimental conditions, single- or multishelled as well multivesicular structures were obtained. We show how such structural changes follow a lifelike process that based self-directing Pickering emulsions. further demonstrate key toward complex architectures patchy nature nanoparticles. Interestingly, no well-defined ordering particles surface...
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