Browsing School of Chemistry by publication year
-
Structural And Magnetic Properties Of Some Vacancy Ordered Osmium Halide Perovskites
Published 22The structures and magnetic properties of the Os4+ (5d4) halides K2OsCl6, K2OsBr6, Na2OsBr6 and Na2OsBr6.6H2O are described. K2OsCl6 and K2OsBr6 have a cubic vacancy-ordered double perovskites structure but undergo different ...Open AccessArticle -
X-ray absorption near edge structure and crystallographic studies of the mixed valence oxide SrRu0.8Ni0.2O3
Published 2011Neutron diffraction methods are used to refine the structure of SrRu 0.8 Ni 0.2 O 3 at room temperature and 4 K. X-ray absorption measurements at the Ru L-edge demonstrate that partial oxidation of the Ru 4+ to Ru 5+ occurs ...Article -
The ferroelectric phase of CdTiO3. A powder neutron diffraction study.
Published 2011-01-01The synthesis of bulk samples of polycrystalline CdTiO3 in both the rhombohedral ilmenite and orthorhombic perovskite forms is described and the structures of these have been refined using powder neutron diffraction data. ...Open AccessArticle -
Synchrotron X-ray powder diffraction studies of structural phase transitions in perovskite oxides
Published 2012The utilization of the high resolution powder diffractometer at the Australian Synchrotron to obtain accurate and precise structures of some perovskite-type oxides is described. The structure of CdTiO3 has been studied ...Article -
Micropatterned Substrates Made by Polymer Bilayer Dewetting and Collagen Nanoscale Assembly Support Endothelial Cell Adhesion
Published 2012The ability to control protein and cell positioning on a microscopic scale is crucial in many biomedical applications, such as tissue engineering and the development of biosensors. We demonstrate here that the assembly of ...Open AccessArticle -
Structural characterization of the perovskite series Sr1-xLaxTi0.5Mn0.5O3
Published 2013The perovskite-type compounds Sr{sub 1−x}La{sub x}Ti{sub 0.5}Mn{sub 0.5}O{sub 3}, x=0, 0.1, 0.2, 0.3, 0.4 and 0.5 have been synthesized by solid-state methods, and their room temperature structures determined using X-ray ...Article -
Ordered vs. disordered perovskites; structural studies of Fe-doped SrIrO3 and SrRuO3
Published 2013The structures of the two Fe containing perovskites Sr 2 IrFeO 6 and SrRu 0.5 Fe 0.5 O 3 have been established using a combination of synchrotron and neutron diffraction methods. Sr 2 IrFeO 6 and SrRu 0.5 Fe 0.5 O 3 are ...Article -
Stabilising the orthorhombic perovskite structure in SrIrO3 through chemical doping. Synthesis, structure and magnetic properties of SrIr1- x Mg x O3 (0.20≤ x≤ 0.33)
Published 2013The synthesis, structure, magnetic and electric conductivity properties of Mg doped SrIrO3 are described. Doping SrIrO3 with Mg favours an orthorhombic structure over the hexagonal face-sharing structure. Polycrystalline ...Article -
Synthesis, structures and properties of transition metal doped SrIrO3
Published 2013The synthesis of some transition metal SrIr1_xMxO3 type oxides is described. These have an orthorhombic perovskite type-structure and are only found when the formal oxidation state of the Ir is approximately equal to +4.5 ...Article -
Magnetic structures of NaFePO4 marićite and triphylite polymorphs for sodium-ion batteries
Published 2013The magnetic structure and properties of polycrystalline NaFePO4 polymorphs, maricite and triphylite, both derived from the olivine structure type, have been investigated using magnetic susceptibility, heat capacity, and ...Open AccessArticle -
Phase Behaviour and Mixed Ionic-Electronic Conductivity of Ba4Sb2O9
Published 2013The 6H-type perovskite phase Ba4Sb2O9, which decomposes in air below 600 K, is found to survive to room temperature in a CO2-free atmosphere. It shows substantial mixed protonic, oxide ionic and electronic conductivity. ...Open AccessArticle -
Sodium manganese fluorosulphate with a triplite structure
Published 2013The crystal structure of the NaMnSO4F fluorosulphate phase prepared by low-temperature solid-state synthesis has been solved and refined by the Rietveld analysis of synchrotron X-ray powder diffraction data. Isostructural ...Open AccessArticle -
Micron-sized polystyrene particles by surfactant-free emulsion polymerization in air: synthesis and mechanism
Published 2013In this study, we propose an alternative method to produce high solids, micrometer-sized polystyrene (PS) latexes with narrow size distribution, based on the use of large amounts of polymerization initiator and allowing ...Open AccessArticle -
Na2FeP2O7: A Safe Cathode for Rechargeable Sodium-ion Batteries
Published 2013Vying for newer sodium-ion chemistry for rechargeable batteries, Na2FeP2O7 pyrophosphate has been recently unveiled as a 3 V high-rate cathode. In addition to its low cost and promising electrochemical performance, here ...Open AccessArticle -
Complex 5d magnetism in a novel S = ½ trimer system, the 12L hexagonal perovskite Ba4BiIr3O12
Published 2013The 12L hexagonal perovskite Ba4BiIr3O12 has been synthesized for the first time and characterized using high-resolution neutron and synchrotron x-ray diffraction as well as physical properties measurements. The structure ...Open AccessArticle -
A combined experimental and computational study of oxide ion conduction dynamics in Sr2Fe2O5 brownmillerite
Published 2013We report a detailed study of the dynamics of oxide ionic conduction in brownmillerite-type Sr2Fe2O5, including lat-tice anisotropy, based on neutron scattering studies of a large (partially twinned) single crystal in ...Open AccessArticle -
Magnetic structure and properties of the Na2CoP2O7 pyrophosphate cathode for sodium-ion batteries: a super-superexchange driven non-collinear antiferromagnet
Published 2013The crystal and magnetic structure and properties of the Na2CoP2O7 sodium-ion battery cathode material have been characterized by magnetic susceptibility, specific heat, and variable temperature neutron powder diffraction ...Open AccessArticle -
Synchrotron X-ray fluorescence studies of a bromine-labelled cyclic RGD peptide interacting with individual tumor cells
Published 2013-01-01The first example of synchrotron X-ray fluorescence imaging of cultured mammalian cells in cyclic peptide research is reported. The study reports the first quantitative analysis of the incorporation of a bromine-labelled ...Open AccessArticle -
Patterned chemisorption of proteins by thin polymer film dewetting
Published 2013-01-10The covalent attachment of proteins and their patterning on surfaces are important in the bio-medical industry, for use in applications such as bio-sensing and biocompatible medical devices. In this work, proteins are ...Open AccessArticle -
Mimicking the Wettability of the Rose Petal using Self-assembly of Waterborne Polymer Particles
Published 2013-07-23In this work, we present a novel platform to synthesize polymeric “raspberry” particles and explore their use to fabricate surfaces with low wettability and high water adhesion, resembling the properties of naturally ...Open AccessArticle