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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hriljac, Joseph, A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023One-pot synthesis of superparamagnetically modified zeolite chabazite for removal of Cs<sup>+</sup> from radioactively contaminated watercitations
- 2021Evolution of the Local Structure in the Sol-Gel Synthesis of Fe3C Nanostructurescitations
- 2020Nuclear wastewater decontamination by 3D printed hierarchical zeolite monolithscitations
- 2018Derivation of Transferable Pair Potentials and the Calculation of Intrinsic Defect Properties for Xenotimecitations
- 2018Transformation of Cs-IONSIV ® into a ceramic wasteform by hot isostatic pressingcitations
- 2016A Potential Wasteform for Cs Immobilizationcitations
- 2013Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressingcitations
- 2012Pair distribution function-derived mechanism of a single-crystal to disordered to single-crystal transformation in a hemilabile metal–organic frameworkcitations
- 2012The effect of extra framework species on the intrinsic negative thermal expansion property of zeolites with the LTA topology.citations
- 2011Enhanced stability and local structure in biologically relevant amorphous materials containing pyrophosphatecitations
- 2010Synthesis and structural characterisation using Rietveld and pair distribution function analysis of layered mixed titanium-zirconium phosphatescitations
- 2009Comparison of structural, microstructural, and electrical analyses of barium strontium titanate thin filmscitations
- 2007Hydrostatic low-range pressure applications of the Paris-Edinburgh cell utilizing polymer gaskets for diffuse X-ray scattering measurementscitations
- 2005Pillared clays as catalysts for hydrocracking of heavy liquid fuelscitations
- 2002Pressure-induced volume expansion of zeolites in the Natrolite familycitations
- 2002Oxygen-stabilised partial amorphization in a Zr₅₀Cu₅₀ alloycitations
- 2001Crystallisation of oxygen-stabilised amorphous phase in a Zr50Cu50 alloycitations
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article
A Potential Wasteform for Cs Immobilization
Abstract
<p>Cs<sub>2</sub>TiNb<sub>6</sub>O<sub>18</sub> is a potential ceramic wasteform for the long-term immobilization of radioactive cesium. Cs<sub>2</sub>TiNb<sub>6</sub>O<sub>18</sub> was synthesized using the aqueous precursor method and a solid-state reaction, and its crystal structure was determined from the Rietveld refinement of synchrotron X-ray and neutron powder diffraction data. The structure is a pyrochlore analogue, space group P3Ìm1 with Cs in 9-fold coordination. The calculated bond valence sum from analysis of neutron diffraction data of 0.84 and high coordination number suggest that Cs has a strong bonding environment. The chemical aqueous durability was investigated using the MCC-1 and PCT-B standard test methods. The measured Cs leach rates of 3.8 × 10<sup>-3</sup> and 2.1 × 10<sup>-3</sup> g m<sup>-2</sup> day<sup>-1</sup> obtained via the MCC-1 and PCT-B methods, respectively, demonstrate good promise of a safe long-term immobilization material comparable to, if not better than, hollandite - the material in the multiphase titanate ceramics (Synroc) targeted for cesium sequestration.</p>