Complex oxide thin films: Pyrochlore, defect fluorite and perovskite model systems for structural, spectroscopic and catalytic studies
Sign Up to like & getrecommendations! Published in 2018 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2018.05.019
Abstract: Abstract Well-ordered thin films of different defect fluorite and perovskite materials, namely lanthanum zirconate (La2Zr2O7), cerium zirconate (Ce2Zr2O7), lanthanum cerate (La2Ce2O7) and lanthanum strontium ferrite (La0.4Sr0.6FeO3), have been prepared by sputtering the respective powder targets… read more here.
Keywords: complex oxide; thin films; fluorite perovskite; structural spectroscopic ... See more keywords
The rattler effect of phonon propagation in defect-fluorite Dy3(Nb1-xTix)O7-x/2
Sign Up to like & getrecommendations! Published in 2018 at "Ceramics International"
DOI: 10.1016/j.ceramint.2018.08.070
Abstract: Abstract Refractory-oxide materials with low thermal conductivity and high thermal expansion coefficients (TECs) have been the object of thermal barrier coating materials’ exploration. For the majority of oxide ceramic, the thermal conductivity obeys the Umklapp… read more here.
Keywords: dy3 nb1; nb1 xtix; thermal conductivity; fluorite dy3 ... See more keywords
Mechanical alloying synthesis of Sm3NbO7 defect fluorite and structural characterization by X-ray diffraction, Raman spectroscopy and DFT calculation
Sign Up to like & getrecommendations! Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2020.12.015
Abstract: Abstract A nanostructured defect-fluorite-type Sm3NbO7 has been produced at ambient temperature by the process of mechanical alloying (MA). The powdered mixture of samarium precursor and pure metallic Niobium (Nb) is milled for 17h to obtain… read more here.
Keywords: ray diffraction; mechanical alloying; spectroscopy; defect fluorite ... See more keywords
Energetics of Formation and Disordering in Rare Earth Weberite RE3TaO7 Materials.
Sign Up to like & getrecommendations! Published in 2019 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.9b02675
Abstract: The recent finding of local weberite-like ordered domains in disordered and radiation damaged pyrochlore oxides has sparked interest in studying the structure, stability, and order-disorder in compounds that form in the weberite structure. In order… read more here.
Keywords: temperature; rare earth; formation; structure ... See more keywords
The emergence of bifunctional catalytic properties by the introduction of Bi3+ in defect fluorite-structured PrO1.833.
Sign Up to like & getrecommendations! Published in 2020 at "Dalton transactions"
DOI: 10.1039/d0dt02121k
Abstract: In the present study, the utility of Pr3+/Pr4+ and Bi3+/Bi(0) redox couples for oxidation and reduction reactions is demonstrated by synthesizing bismuth-substituted PrO1.833 samples following a solution combustion method. The samples retained the defect fluorite… read more here.
Keywords: pro1 833; bismuth substituted; pr0 60bi0; defect fluorite ... See more keywords
Perspectives on Pyrochlores, Defect Fluorites, and Related Compounds: Building Blocks for Chemical Diversity and Functionality
Sign Up to like & getrecommendations! Published in 2021 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2021.778140
Abstract: In this article we provide some perspectives on a range of pyrochlore and defect fluorite type compounds with nominal A2B2O7, A2BO5, ABC2O7, and other stoichiometries. Typically, the phase transformations and stability fields in these systems… read more here.
Keywords: disorder; defect fluorites; pyrochlores defect; defect fluorite ... See more keywords