Abstract
Intercalation of acetone molecules in the H3OUO2PO4 · 3H2O framework has been studied by X-ray diffraction, differential scanning calorimetry and IR and Raman spectroscopies. The influence of water traces in acetone is pointed out. Four main phases are observed in the course of the rehydration/de-intercalation process. The nature of proton bonding with the (UO2PO4) n slab and its evolution are discussed (H3O+, PO 3−4 , HPO 2−4 , HPO 2−4 ...). The presence of defects in the sub-stoichiometric HUP is demonstrated. Comparison is made with similar partially dehydrated material obtained under electric field action in electrochemical solid state devices.
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Pham-Thi, M., Colomban, P. Acetone intercalation/de-intercalation processes in the HUP (H3OUO2PO4·3H2O) framework: A model for electrochemical degradation. J Mater Sci 21, 1591–1600 (1986). https://doi.org/10.1007/BF01114713
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DOI: https://doi.org/10.1007/BF01114713