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Items for "EXAFS"

Speciation of technetium and rhenium complexes by in situ XAS-electrochemistry

A spectro-electrochemical cell was developed in order to study the speciation of radio-elements in thermodynamic unstable redox states using in situ XAS spectroscopy...

Keywords: Technetium, Rhenium, EXAFS, Speciation, Spectro-electrochemistry

05/2006 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Interaction mechanisms of bacterial strains isolated from extreme habitats with uranium

This paper summarizes the effect of pH on the speciation and cellular localization of uranium bound by bacterial strains isolated from the S15 deep-well montoring site, located at the Siberian radioactive subsurface depository Tomsk-7, Russia...

Keywords: Bacterial isolates, Uranium, Interaction mechanisms, pH, EXAFS

09/2006 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Study of the solubility of amorphous and crystalline uranium dioxide by combined spectroscopic methods

Colloid formation and solubility of U(IV) in acidic HClO₄/NaClO₄ solutions are investigated by coulometric titration...

Keywords: Uranium dioxide, Solubility, Colloids, LIBD, EXAFS

03/2007 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Solving the 3D structure of metal nanoparticles

We discuss methods of Extended X-ray Absorption Fine-Structure (EXAFS) analysis that provide three-dimensional structural characterization of metal nanoparticles, both mono- and bi-metallic...

Keywords: Nanoparticles, Nanoalloys, EXAFS, Structure analysis, Short range order