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Characterization of palladium species after γ-irradiation of a TBP-alkane-Pd(NO3)2 system.

ABSTRACT: The γ-irradiation of a biphasic system composed of tri-n-butylphosphate in tetrapropylene hydrogen (TPH) in contact with palladium(ii) nitrate in nitric acid aqueous solution led to the formation of two precipitates. A thorough characterization of these solids was performed by means of various analytical techniques including X-Ray Diffraction (XRD), Thermal Gravimetric Analysis coupled with a Differential Scanning Calorimeter (TGA-DSC), X-ray Photoelectron Spectroscopy (XPS), InfraRed (IR), RAMAN and Nuclear Magnetic Resonance (NMR) Spectroscopy, and ElectroSpray Ionization Mass Spectrometry (ESI-MS). Investigations showed that the two precipitates exhibit quite similar structures. They are composed at least of two compounds: palladium cyanide and palladium species containing ammonium, phosphorous or carbonyl groups. Several mechanisms are proposed to explain the formation of Pd(CN)2.

SUBMITTER: Simon B 

PROVIDER: S-EPMC9080922 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Characterization of palladium species after γ-irradiation of a TBP-alkane-Pd(NO<sub>3</sub>)<sub>2</sub> system.

Simon Bénédicte B   Bouyer Christine C   De Sio Stéphanie S   Berthon Claude C   Boubals Nathalie N   Miserque Frédéric F   Brackx Emmanuelle E   Raymond Nicole N   Chagnes Alexandre A   Berthon Laurence L  

RSC advances 20180612 38

The γ-irradiation of a biphasic system composed of tri-<i>n</i>-butylphosphate in tetrapropylene hydrogen (TPH) in contact with palladium(ii) nitrate in nitric acid aqueous solution led to the formation of two precipitates. A thorough characterization of these solids was performed by means of various analytical techniques including X-Ray Diffraction (XRD), Thermal Gravimetric Analysis coupled with a Differential Scanning Calorimeter (TGA-DSC), X-ray Photoelectron Spectroscopy (XPS), InfraRed (IR  ...[more]

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