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All Outputs (22)

Benzene-1,2,4,5-tetrol (2024)
Journal Article
Weare, B. L., Hoggett, S., Cull, W. J., Argent, S. P., Khlobystov, A. N., & Brown, P. D. (2024). Benzene-1,2,4,5-tetrol. IUCrData, 9(6), Article x240612. https://doi.org/10.1107/S2414314624006126

The crystal structure of the title compound was determined at 120 K. It crystallizes in the triclinic space group P\overline{1} with four independent molecules in the asymmetric unit. In the crystal, each symmetry-unique molecule forms π–π stacks on... Read More about Benzene-1,2,4,5-tetrol.

Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas (2024)
Journal Article
Cardillo-Zallo, I., Biskupek, J., Bloodworth, S., Marsden, E. S., Fay, M. W., Ramasse, Q. M., Rance, G. A., Stoppiello, C. T., Cull, W. J., Weare, B. L., Whitby, R. J., Kaiser, U., Brown, P. D., & Khlobystov, A. N. (2024). Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas. ACS Nano, 18(4), 2958–2971. https://doi.org/10.1021/acsnano.3c07853

Single-atom dynamics of noble-gas elements have been investigated using time-resolved transmission electron microscopy (TEM), with direct observation providing for a deeper understanding of chemical bonding, reactivity, and states of matter at the na... Read More about Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas.

Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres (2023)
Journal Article
Molinar-Díaz, J., Woodliffe, J. L., Steer, E., Morley, N. A., Brown, P. D., & Ahmed, I. (2023). Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres. Molecules, 28(6), Article 2523. https://doi.org/10.3390/molecules28062523

The rapid, single-stage, flame-spheroidisation process, as applied to varying Fe3O4:CaCO3 powder combinations, provides for the rapid production of a mixture of dense and porous ferromagnetic microspheres with homogeneous composition, high levels of... Read More about Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres.

Development of Thermally Responsive PolyNIPAm Microcarrier for Application of Cell Culturing—Part I: A Feasibility Study (2021)
Journal Article
Chou, P. M., Khiew, P. S., Brown, P. D., & Hu, B. (2021). Development of Thermally Responsive PolyNIPAm Microcarrier for Application of Cell Culturing—Part I: A Feasibility Study. Polymers, 13(16), Article 2629. https://doi.org/10.3390/polym13162629

Poly(N-isopropylacrylamide) (polyNIPAm) microspheres were synthesized via the suspension polymerization technique. Thermal and redox initiators were compared for the polymerization, in order to study the effect of initiator type on the surface charge... Read More about Development of Thermally Responsive PolyNIPAm Microcarrier for Application of Cell Culturing—Part I: A Feasibility Study.

Flame spheroidisation of dense and porous Ca2Fe2O5 microspheres (2020)
Journal Article
Molinar Díaz, J., Samad, S. A., Steer, E., Neate, N., Constantin, H., Islam, M. T., …Ahmed, I. (2020). Flame spheroidisation of dense and porous Ca2Fe2O5 microspheres. Materials Advances, 1(9), 3539-3544. https://doi.org/10.1039/d0ma00564a

Compositionally uniform magnetic Ca2Fe2O5 (srebrodolskite) microspheres created via a rapid, single-stage flame spheroidisation (FS) process using magnetite and carbonate based porogen (1:1 Fe3O4:CaCO3) feedstock powders, are described. Two types of... Read More about Flame spheroidisation of dense and porous Ca2Fe2O5 microspheres.

Low dimensional nanostructures of fast ion conducting lithium nitride (2020)
Journal Article
Tapia-Ruiz, N., Gordon, A. G., Jewell, C. M., Edwards, H. K., Dunnill, C. W., Blackman, J. M., …Gregory, D. H. (2020). Low dimensional nanostructures of fast ion conducting lithium nitride. Nature Communications, 11(1), Article 4492. https://doi.org/10.1038/s41467-020-17951-6

© 2020, The Author(s). As the only stable binary compound formed between an alkali metal and nitrogen, lithium nitride possesses remarkable properties and is a model material for energy applications involving the transport of lithium ions. Following... Read More about Low dimensional nanostructures of fast ion conducting lithium nitride.

Low dimensional nanostructures of fast ion conducting lithium nitride (2020)
Journal Article
Tapia-Ruiz, N., Gordon, A. G., Jewell, C. M., Edwards, H. K., Dunnill, C. W., Blackman, J. M., …Gregory, D. H. (2020). Low dimensional nanostructures of fast ion conducting lithium nitride. Nature Communications, 11, Article 4492. https://doi.org/10.1038/s41467-020-17951-6

As the only stable binary compound formed between an alkali metal and nitrogen, lithium nitride is a material with remarkable properties and a model material for energy applications involving the transport of lithium ions. Following a materials desig... Read More about Low dimensional nanostructures of fast ion conducting lithium nitride.

Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment (2018)
Journal Article
Watts, J. A., Fay, M. W., Rance, G. A., Brown, P. D., & Khlobystov, A. N. (2018). Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment. Carbon, 139, 538-544. https://doi.org/10.1016/j.carbon.2018.06.074

Uniform, less 10 nm sized, hollow carbon nano-shells (HCNS) have been prepared via a single-step, thermal treatment of alkanethiol stabilised Ag nanoparticles (TS-AgNP). Direct evidence for the formation of spherical HCNS from TS-AgNP is provided by... Read More about Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment.

Modelling of single spark interactions during electrical discharge coating (2017)
Journal Article
Algodi, S. J., Clare, A. T., & Brown, P. D. (2018). Modelling of single spark interactions during electrical discharge coating. Journal of Materials Processing Technology, 252, https://doi.org/10.1016/j.jmatprotec.2017.10.029

Electrical discharge coating (EDC) methods may be used to enhance the surface functionality of electrical discharge machined components. However, industrial uptake of EDC has been restricted due to limited understanding of the fundamental interaction... Read More about Modelling of single spark interactions during electrical discharge coating.

Acid-dissolution of antigorite, chrysotile and lizardite for ex situ carbon capture and storage by mineralisation (2016)
Journal Article
Lacinska, A. M., Styles, M. T., Bateman, K., Wagner, D., Hall, M. R., Gowing, C., & Brown, P. D. (2016). Acid-dissolution of antigorite, chrysotile and lizardite for ex situ carbon capture and storage by mineralisation. Chemical Geology, 437, https://doi.org/10.1016/j.chemgeo.2016.05.015

Serpentine minerals serve as a Mg donor in carbon capture and storage by mineralisation (CCSM). The acid-treatment of nine comprehensively-examined serpentine polymorphs and polytypes, and the subsequent microanalysis of their post-test residues high... Read More about Acid-dissolution of antigorite, chrysotile and lizardite for ex situ carbon capture and storage by mineralisation.

Visualized effect of oxidation on magnetic recording fidelity in pseudo-single-domain magnetite particles (2014)
Journal Article
Almeida, T. P., Kasama, T., Muxworthy, A. R., Williams, W., Nagy, L., Hansen, T. W., …Dunin-Borkowski, R. E. (2014). Visualized effect of oxidation on magnetic recording fidelity in pseudo-single-domain magnetite particles. Nature Communications, 5(5154), https://doi.org/10.1038/ncomms6154

Magnetite (Fe3O4) is an important magnetic mineral to Earth scientists, as it carries the dominant magnetic signature in rocks, and the understanding of its magnetic recording fidelity provides a critical tool in the field of palaeomagnetism. However... Read More about Visualized effect of oxidation on magnetic recording fidelity in pseudo-single-domain magnetite particles.

Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content (2008)
Journal Article
Fay, M. W., Han, Y., Brown, P. D., Harrison, I., Hilton, K., Munday, A., …Martin, T. (2008). Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content. Journal of Applied Physics, 103(7), https://doi.org/10.1063/1.2890978

The effect of varying annealing temperature and Al layer thickness on the structural and electrical characteristics of AuPtAlTi/AlGaN/GaN ohmic contact structures has been systematically investigated. The relationship between annealing temperature, A... Read More about Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content.

Nanoscale characterisation of MBE-grown GaMnN / (001) GaAs (2008)
Book Chapter
Fay, M. W., Han, Y., Novikov, S. V., Edmonds, K., Gallagher, B., Campion, R., …Brown, P. D. (2008). Nanoscale characterisation of MBE-grown GaMnN / (001) GaAs. In A. Cullis, & P. Midgley (Eds.), Microscopy of semiconducting materials 2007: proceedings of the 15th conference, 2-5 April 2007, Cambridge, UK. Springer-Verlag

The growth of cubic (Ga,Mn)N/(001)GaAs heterostructures by plasma assisted molecular beam epitaxy has been appraised as a function of Ga:N ratio, Mn concentration and growth temperature. The combined analytical techniques of EFTEM, EDX, CBED and dark... Read More about Nanoscale characterisation of MBE-grown GaMnN / (001) GaAs.

Structural characterisation of MBE grown zinc-blende Ga1-xMnxN/GaAs(001) as a function of Ga flux (2005)
Book Chapter
Han, Y., Fay, M. W., Brown, P. D., Novikov, S. V., Edmonds, K., Gallagher, B., …Foxon, C. (2005). Structural characterisation of MBE grown zinc-blende Ga1-xMnxN/GaAs(001) as a function of Ga flux. In A. Cullis, & J. Hutchison (Eds.), Microscopy of semiconducting materials: proceedings of the 14th conference: April 11-14, 2005, Oxford, UK. Springer-Verlag

Ga1-xMnxN films grown on semi-insulating GaAs(001) substrates at 680°C with fixed Mn flux and varied Ga flux demonstrated a transition from zinc-blende/wurtzite mixed phase growth for low Ga flux (N-rich conditions) to zinc-blende single phase growth... Read More about Structural characterisation of MBE grown zinc-blende Ga1-xMnxN/GaAs(001) as a function of Ga flux.

Structural characterisation of spintronic GaMnAs and GaMnN heterostructures grown by molecular beam epitaxy (2005)
Book Chapter
Fay, M. W., Han, Y., Novikov, S. V., Edmonds, K., Wang, K., Gallagher, B., …Brown, P. D. (2005). Structural characterisation of spintronic GaMnAs and GaMnN heterostructures grown by molecular beam epitaxy. In A. Cullis, & A. Hutchison (Eds.), Microscopy of semiconducting materials: proceedings of the 14th conference: April 11-14, 2005, Oxford, UK. Springer-Verlag

Observations of orthogonal orientations demonstrate the development of banded contrast features on inclined {-1-1-1}B planes for the [110] projection within micron thick samples, attributed to a compositional fluctuation in the Mn content. The relat... Read More about Structural characterisation of spintronic GaMnAs and GaMnN heterostructures grown by molecular beam epitaxy.

The application of tripod polishing and focused ion beam milling to the TEM specimen preparation of HVOF thermally sprayed coatings (2004)
Book Chapter
Kong, G., McCartney, D. G., & Brown, P. D. (2004). The application of tripod polishing and focused ion beam milling to the TEM specimen preparation of HVOF thermally sprayed coatings. In S. McVitie, & D. McComb (Eds.), Electron microscopy and analysis 2003: proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Oxford, 3-5 September 2003. Institute of Physics Publishing

The microstructure of high velocity oxy fuel thermally sprayed coatings is highly anisotropic and inhomogeneous. Tripod polishing has enabled the preparation of samples with up to 0.5mm diameter electron transparent areas, where a statistically signi... Read More about The application of tripod polishing and focused ion beam milling to the TEM specimen preparation of HVOF thermally sprayed coatings.

Characterisation of dispersions within annealed HVOLF thermally sprayed AlSnCu coatings (2004)
Book Chapter
Kong, C.-J., Moldovan, G., Fay, M. W., McCartney, D. G., & Brown, P. D. (2004). Characterisation of dispersions within annealed HVOLF thermally sprayed AlSnCu coatings. In S. McVitie, & D. McComb (Eds.), Electron Microscopy and Analysis 2003: Proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Oxford, 3-5 September 2003. Institute of Physics Publishing

High velocity oxy-liquid fuel (HVOLF) AlSnCu coatings are characterised following annealing for up to 5 hours at 300°C. A combination of statistical analysis of BSE images and TEM observations demonstrate the decrease in the number of sub-micron and... Read More about Characterisation of dispersions within annealed HVOLF thermally sprayed AlSnCu coatings.

Structural characterisation of carbon nanotubes in the presence of a Ni catalyst (2004)
Book Chapter
Edwards, H., Fay, M. W., Bououdina, M., Gregory, D., Walker, G., & Brown, P. D. (2004). Structural characterisation of carbon nanotubes in the presence of a Ni catalyst. In S. McVitie, & D. McComb (Eds.), Electron Microscopy and Analysis 2003: Proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Oxford, 3-5 September 2003. Institute of Physics Publishing

Multi-wall carbon nanotubes (MWNTs) grown by chemical vapour deposition (CVD) of an ethene / hydrogen gas mixture on alumina supported and unsupported nickel catalysts for 10, 20 and 120 minutes at 600oC and 700oC are compared. Nano-scale nickel part... Read More about Structural characterisation of carbon nanotubes in the presence of a Ni catalyst.

Microstructural characterisation of biocompatible sol-gel derived vanadium doped TiO2 on Ti substrates (2001)
Book Chapter
Marlafeka, S., Allison, F., Grant, D., Harrison, P., & Brown, P. D. (2001). Microstructural characterisation of biocompatible sol-gel derived vanadium doped TiO2 on Ti substrates. In M. Aindow, & C. Kiely (Eds.), Electron microscopy and analysis 2001: proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Dundee, 5-7 September 2001. IOP Publishing Ltd

Sol-gel derived pure titania is compared with vanadium and / or aluminium modified titania deposited by spin coating on pure titanium substrates annealed at 300C and 650C. Reflection high-energy electron diffraction indicated the presence of anatase... Read More about Microstructural characterisation of biocompatible sol-gel derived vanadium doped TiO2 on Ti substrates.