36 research outputs found
Molecular structure and reactivity of titania-supported transition metal oxide catalysts synthesized by equilibrium deposition filtration for the oxidative dehydrogenation of ethane
Molybdenum(VI) Oxosulfato Complexes in MoO<sub>3</sub>–K<sub>2</sub>S<sub>2</sub>O<sub>7</sub>–K<sub>2</sub>SO<sub>4</sub> Molten Mixtures: Stoichiometry, Vibrational Properties, and Molecular Structures
Determination of Stoichiometry of Solutes in Molten Salt Solvents by Correlations of Relative Raman Band Intensities
The reaction between ZnO and Molten K2S2O7 forming K2Zn(SO4)2, studied by Raman and IR Spectroscopy and X-ray Diffraction.
The Crystal Structure and Spectroscopic Characterization of a Green V(IV) Compound, Na8(VO)2(SO4)6
Electrochemical and Spectroscopic Investigations of the K 2 SO 4 ‐ V 2 O 5 Molten Electrolyte
Thermal dissociation of molten KHSO4: Temperature dependence of Raman spectra and thermodynamics
In Situ Raman Spectroscopy as a Tool for Discerning Subtle Structural Differences between Commercial (Ce,Zr)O2-Based OSC Materials of Identical Composition
In situ Raman spectroscopy was used at temperatures in the 50–480 °C range under oxidizing (20% O2/He) and reducing (5% H2/He) flowing gas atmospheres to compare the spectra obtained for a series of industrial rare earth doped CexZr1−xO2−δ oxygen storage capacity (OSC) mixed metal oxide materials of identical at % composition, which were prepared by the same chemical synthesis route, in which one synthesis parameter of the aqueous chemistry was slightly varied. The Raman fingerprint of the anionic sublattice is very sensitive to O atom relocations within the bulk of the material matrix and to the pertinent defect topology in each case. A protocol of sequential Raman measurements and analysis was proposed to discern subtle differences between the oxygen vacancy and defect topologies of the examined materials. It can be concluded that for two materials under comparison for their structures, identical Raman spectra are obtained only if the procedures followed for their preparation are identical; a slight variation of one single parameter (e.g., in the aqueous chemistry stage) results in discernible differences in the Raman spectra. The proposed procedure can serve as a tool for proving or disproving infringement of IPR (Intellectual Property Rights) protected preparation methods of ceria-based mixed metal oxide materials