A5028036466- Nuclear materials and radiation effects
- Nuclear Materials and Properties
- Radioactive element chemistry and processing
- Advanced Condensed Matter Physics
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced ceramic materials synthesis
- Recycling and utilization of industrial and municipal waste in materials production
- Glass properties and applications
- Electronic and Structural Properties of Oxides
- Concrete and Cement Materials Research
- Luminescence Properties of Advanced Materials
- Chemical Synthesis and Characterization
- Synthesis and Properties of Aromatic Compounds
- Advanced materials and composites
- Fusion materials and technologies
- Polyoxometalates: Synthesis and Applications
- Nuclear reactor physics and engineering
- Organic Light-Emitting Diodes Research
- Microwave Dielectric Ceramics Synthesis
- Metal complexes synthesis and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Ferrocene Chemistry and Applications
- Muon and positron interactions and applications
Australian Nuclear Science and Technology Organisation
2016-2025
Monash University
2012
Trinity College Dublin
2002-2010
University of Bologna
2004-2005
Dublin City University
2004
The scientific battle between two major classes of materials as to the best option for immobilization and disposal high-level nuclear wastes (HLW) has endured since 1970s. Both glass ceramic afford different characteristics properties that make them specifically suitable certain types radioactive wastes; both material have been previously selected preferred solutions waste treatment programs. During 1980s, predominated following its selection US defense wastes, this choice is reflected in...
A versatile synthetic route has been demonstrated to provide a series of soluble, fused polyaromatic C,N-molecules, with tunable optical and electronic properties ligand functionality. The N-functionalized heterosuperbenzene, 1, is the founding member this new family active graphitic substructures.
Lanthanum zirconate has been prepared via a new chemical synthesis method by combining sol–gel processing and complex precipitation. The was carried out in aqueous solution under ambient conditions. synthesized powder possessed the pyrochlore superstructure upon calcination above 1200°C. A suite of characterization techniques, including FTIR , Raman, X ‐ray electron diffraction, TEM SEM nitrogen sorption were employed to investigate microstructural evolution bulk properties. Dense ceramics...
In this study, 20 metallocene-based compounds comprising extensive structural diversity were synthesized and evaluated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. These proved moderate to good CA inhibitors in vitro, with several displaying selectivity for cancer-associated isozymes IX XII compared off-target I II. Compound 6 was the most potent ferrocene-based inhibitor K(i)s of 5.9 6.8 nM at XII, respectively. A selection key drug-like parameters Log P, D, solubility, vitro...
Abstract Dr Eric (Lou) Vance spent 32 years at the Australian Nuclear Science and Technology Organisation (ANSTO), where he was dedicated to development of Synroc technology, a waste treatment solution for intractable nuclear wastes. The original form Synroc, multiphase ceramic wasteform based on stable leach resistant titanate minerals, invented by scientists in late 1970s. This formulation directed toward immobilization PUREX wastes from reprocessing fuels. ANSTO under scientific...
Tetra-peri-(tert-butyl-benzo)-di-peri-(pyrimidino)-coronene 1, the parent compound of nitrogen heterosuperbenzene family N-HSB, is employed as a novel monotopic ligand in formation [Pd(eta3-C3H5)(1)]PF6 2 and [Ru(bpy)2(1)](PF6)2 (where bpy = 2,2'-bipyridine 3a d8-2,2'-bipyridine 3b). These N-coordinated complexes are fully characterized by 1H NMR IR spectroscopy ESI-MS. Metal coordination has profound effect on both absorption emission properties 1. Pd(II) causes red-shift low-energy...
Abstract Brannerite‐based glass‐ceramics have been developed as potential waste forms for the immobilization of actinide‐rich radioactive wastes. For first time, formation brannerite phases in glass has demonstrated using uranium (U) and plutonium (Pu) with additions gadolinium hafnium neutron absorbers. Both XRD SEM ‐ EDS confirm that is dominating phase compositions close to Y 0.5 U Ti 2 O 6 , Gd 0.2 Pu 0.3 0.1 Hf 0.6 internally crystallized glass. TEM SAED Raman spectroscopy reveal...
Abstract Uranium brannerite phases with terbium(III) or dysprosium(III) ions have been investigated. The precursors molar ratio of 0.5:0.5:2 (Ln: U: Ti Ln = Tb Dy) were prepared and calcined at 750°C in argon. Sintering the pelletized samples argon 1200°C led to formation pyrochlore TiO 2 rutile U‐rich oxides while sintering air nominal composition close 0.5 U O 6 together trace amounts LnUO 4 . Incorporating an excess (20 wt%) higher temperature (1300°C) resulted no obvious change phase...
IONSIV R9120-B is a commercial inorganic ion exchange material used in the nuclear industry for removal of Cs-137 from contaminated liquids. Once loaded with radioactive species, it considered waste and requires treatment by incorporation into stable wasteform to prevent radionuclide release during disposal. This work presents promising, novel candidate glass-ceramic based on pollucite immobilization cesium-loaded IONSIV. The tailored provides chemical processing flexibility through addition...
Cerium titanate CeTi2O6 was prepared by a new soft chemistry route in aqueous solution. A suite of characterization techniques, including X-ray diffraction, thermal analysis, vibrational spectroscopy, and scanning transmission electron were employed to investigate the brannerite structure formation its bulk properties. The synthesized powder formed crystal upon calcination at temperatures as low 800 °C. Samples sintered 1350 °C possess high level crystallinity. absorption near-edge results...
Abstract Since the end of 1970s, Synroc at Australian Nuclear Science and Technology Organisation (ANSTO) has evolved from a focus on titanate ceramics directed PUREX waste to platform treatment technology fabricate tailored glass–ceramic ceramic forms for different types actinide, high- intermediate level wastes. The particular emphasis is wastes which are problematic glass matrices or existing vitrification process technologies. In particular, nuclear containing actinides, notably...
Abstract Pyrochlore glass‐ceramics (GCs) have been investigated with samples fabricated via both sintering and hot isostatic pressing (HIPing) of a mixed oxide precursor. It has demonstrated that at 1200°C in air is necessary to obtain well‐crystallized pyrochlore crystals sodium aluminoborosilicate glass through one‐step controlled cooling. The crystallization, structure, microstructure Eu 2 Ti O 7 as the major phases residual were confirmed X‐ray diffraction (XRD), scanning electron...