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Compression of scheelite-type SrMoO4 under quasi-hydrostatic conditions: Redefining the high-pressure structural sequence
(American Institute of Physics, 2013)
The high-pressure behavior of tetragonal SrMoO4 was analyzed by Raman and optical-absorption measurements. Pressures up to 46.1 GPa were generated using diamond-anvil cells and Ne or N2 as quasi-hydrostatic pressure-transmitting ...
Hexanuclear Niobium Cluster Compounds with Protonated N‐Base Cations
(Wiley, 2020)
Octahedral clusters of the [M6X12] type offer numerous possibilities to form structural arrangements through different choices of bonding situations. In this paper a series of new cluster compounds of the transition metal ...
New insights in the structure-luminescence relationship of Eu:SrAl2O4
(Elsevier, 2009)
This work aims the preparation of Eu:SrAl2O4 through a sol-gel methodology. Some studies point out the possibility that hexagonal polymorph exhibit higher luminescence efficiency than the monoclinic one. However, the slow ...
High-pressure study of the behavior of mineral barite by x-ray diffraction
(American Physical Society, 2011-08-02)
In this paper, we report the angle-dispersive x-ray diffraction data of barite, BaSO4 , measured in a diamond-anvil cell up to a pressure of 48 GPa, using three different fluid pressure-transmitting media (methanol-ethanol ...
Photoluminescence properties of cerium oxide nanoparticles as a function of lanthanum content
(Elsevier, 2015)
The structural and photoluminescent properties at room temperature of CeO2 and La-doped CeO2 particles were undertaken. The obtained particles were synthesized by a microwave-assisted hydrothermal method (MAH) under different ...
A theoretical and experimental investigation of hetero- vs. homo-connectivity in barium silicates
(Mineralogical Society of America, 2022-04)
Barium silicates may be found in contact aureoles and are used in several important technologies (e.g., LEDs). The BaO-SiO2 system stabilizes 13 crystalline phases with different silicate tetrahedral and connectivity ...
Synthesis of Cr-doped CaTiSiO5 ceramic pigments by spray drying
(Elsevier, 2009)
Cr-doped CaTiSiO5 was synthesized by spray drying and conventional ceramic method in order to assess its potential as ceramic pigment. The evolution of the phase composition with thermal treatment was investigated by X-ray ...
Pressure-induced phase transitions in AgClO4
(American Physical Society, 2011-08-18)
AgClO4 has been studied under compression by x-ray diffraction and density functional theory calculations. Experimental evidence of a structural phase transition from the tetragonal structure of AgClO4 to an orthorhombic ...
Presence of excited electronic state in CaWO4 crystals provoked by a tetrahedral distortion: An experimental and theoretical investigation.
(© American Institute of Physics, 2011-08)
By combining experimental techniques such as x-ray diffraction, Fourier transform Raman, ultraviolet-visible, x-ray absorption near edge structure, extended x-ray absorption fine structure spectroscopy, and theoretical ...
pH-Tunable Hydrogelators for Water Purification: Structural Optimisation and Evaluation
(Wiley, 2012-02)
A focused library of potential hydrogelators each containing two substituted aromatic residues separated by a urea or thiourea linkage have been synthesised and characterized. Six of these novel compounds are highly efficient ...