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Professor PAUL BROWN's Outputs (33)

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.

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. (in press). 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 ferro-magnetic 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.

Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications (2023)
Journal Article
Molinar‐Díaz, J., Woodliffe, J. L., Milborne, B., Murrell, L., Islam, M. T., Steer, E., Weston, N., Morley, N. A., Brown, P. D., & Ahmed, I. (2023). Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications. Advanced Materials Interfaces, 10(11), Article 2202089. https://doi.org/10.1002/admi.202202089

Highly porous, ferromagnetic glass-ceramic P40-Fe3O4 microspheres (125–212 µm) with enhanced cytocompatibility have been manufactured for the first time via a facile, rapid, single-stage flame spheroidization process. Dispersions of Fe3O4 and Ca2Fe2O... Read More about Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications.

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., Brown, P. D., & 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., Snape, C. P., Brown, P. D., MacLaren, I., Baldoni, M., Besley, E., Titman, J. J., & 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.

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., Snape, C. P., Brown, P. D., MacLaren, I., Baldoni, M., Besley, E., Titman, J. J., & 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.

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 and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings (2018)
Journal Article
Algodi, S. J., Murray, J. W., Brown, P. D., & Clare, A. T. (2018). Modelling and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings. Procedia CIRP, 68, 28-33. https://doi.org/10.1016/j.procir.2017.12.017

The creation of coatings via Electrical Discharge (ED) methods can enhance the functionality of components which are subject to prior ED machining process steps. However, the industrial application of these methods has been limited due to poor unders... Read More about Modelling and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings.

Wear performance of TiC/Fe cermet electrical discharge coatings (2018)
Journal Article
Algodi, S. J., Murray, J. W., Brown, P. D., & Clare, A. T. (2018). Wear performance of TiC/Fe cermet electrical discharge coatings. Wear, 402-403, https://doi.org/10.1016/j.wear.2018.02.007

The tribological behaviours of TiC-based cermet coatings, prepared by electrical discharge coating (EDC) using a semi-sintered TiC tool electrode, have been investigated. The as-deposited coatings exhibited complex microstructures, comprising TiC gra... Read More about Wear performance of TiC/Fe cermet electrical discharge coatings.

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.

An experimental study of the carbonation of serpentinite and partially serpentinised peridotites (2017)
Journal Article
Lacinska, A. M., Styles, M. T., Bateman, K., Hall, M., & Brown, P. D. (in press). An experimental study of the carbonation of serpentinite and partially serpentinised peridotites. Frontiers in Earth Science, 5, https://doi.org/10.3389/feart.2017.00037

In situ sequestration of CO2 in mantle peridotites has been proposed as a method to alleviate the amount of anthropogenic CO2 in the atmosphere. This study presents the results of 8-month long laboratory fluid-rock experiments on representative mantl... Read More about An experimental study of the carbonation of serpentinite and partially serpentinised peridotites.

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.

Direct visualization of the thermomagnetic behavior of pseudo-single-domain magnetite particles (2016)
Journal Article
Almeida, T. P., Muxworthy, A. R., Kovacs, A., Williams, W., Brown, P. D., & Dunin-Borkowski, R. E. (2016). Direct visualization of the thermomagnetic behavior of pseudo-single-domain magnetite particles. Science Advances, 2(4), Article e1501801. https://doi.org/10.1126/sciadv.1501801

The study of the paleomagnetic signal recorded by rocks allows scientists to understand Earth’s past magnetic field and the formation of the geodynamo. The magnetic recording fidelity of this signal is dependent on the magnetic domain state it adopts... Read More about Direct visualization of the thermomagnetic behavior of pseudo-single-domain magnetite particles.

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., Brown, P. D., & 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., Wallis, D., Balmer, R., Uren, M., & 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., Staddon, C., Foxon, C., & 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.