Search results for "alkaline earth"

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Spectroscopic characterization of alkaline earth uranyl carbonates

2005

A series of alkaline uranyl carbonates, M[UO{sub 2}(CO{sub 3}){sub 3}].nH{sub 2}O (M=Mg{sub 2}, Ca{sub 2}, Sr{sub 2}, Ba{sub 2}, Na{sub 2}Ca, and CaMg) was synthesized and characterized by inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS) after nitric acid digestion, X-ray powder diffraction (XRD), and thermal analysis (TGA/DTA). The molecular structure of these compounds was characterized by extended X-ray absorption fine-structure (EXAFS) spectroscopy and X-ray photoelectron spectroscopy (XPS). Crystalline Ba{sub 2}[UO{sub 2}(CO{sub 3}){sub 3}].6H{sub 2}O was obtained for the first time. The EXAFS analysis showed that this compound consists of …

spectroscopysynthesisAbsorption spectroscopyTRLFSAnalytical chemistryElectron spectroscopyUranyl carbonateuraniumInorganic Chemistrycarbonatechemistry.chemical_compoundXPSMaterials ChemistrystructurePhysical and Theoretical ChemistrySpectroscopyX-ray spectroscopyExtended X-ray absorption fine structureChemistryCondensed Matter PhysicsUranylalkaline earthElectronic Optical and Magnetic MaterialsEXAFSX-ray crystallographyCeramics and CompositesJournal of Solid State Chemistry
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