A5022798394- Crystal Structures and Properties
- Chemical Synthesis and Characterization
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Zeolite Catalysis and Synthesis
- Thermal and Kinetic Analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
- Inorganic Chemistry and Materials
- Nanoparticles: synthesis and applications
- Laser-Ablation Synthesis of Nanoparticles
- Phosphorus and nutrient management
- Advanced Battery Materials and Technologies
- Adsorption and biosorption for pollutant removal
- TiO2 Photocatalysis and Solar Cells
- Iron oxide chemistry and applications
- Radiation Detection and Scintillator Technologies
- Crystal structures of chemical compounds
- Polyoxometalates: Synthesis and Applications
- Advanced Condensed Matter Physics
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- bioluminescence and chemiluminescence research
- Copper-based nanomaterials and applications
University of Monastir
2014-2024
Active research in science and technology is improving the development of materials that emit infrared light, with aim better optical thermometric sensors. In this paper we report synthesis a new NIR-emitting phosphate phosphor, Sr6Y(PO4)5:Nd3+ (SYP: Nd3+), at differing concentrations Nd3+ using conventional solid-state reaction route. X-ray diffraction analysis showed prepared phosphors exhibit singular phase monoclinic whitlockite structure (space group I2/a). SEM images show...
A new magnesium phosphate, Na 3 RbMg 7 (PO 4 ) 6 [trisodium rubidium heptamagnesium hexakis(orthophosphate)], has been synthesized as single crystals by the flux method and exhibits a structure type. Its original is built up from MgO x ( = 5 6) polyhedra linked directly to each other through common corners or edges reinforced corner-sharing with PO tetrahedra. The resulting anionic three-dimensional framework leads formation of channels along [010] direction, in which + cations are located,...
The iron molybdate NaMgFe(MoO 4 ) 3 {sodium magnesium iron(III) tris[molybdate(VI)]} has been synthesized by the flux method. This compound is isostructural with α-NaFe 2 (MoO and crystallizes in triclinic space group P -1. Its structure built up from [Mg,Fe] O 10 units of edge-sharing [Mg,Fe]O 6 octahedra which are linked to each other through common corners [MoO ] tetrahedra. resulting anionic three-dimensional framework leads formation channels along [101] direction Na + cations located.
A new iron phosphate, rubidium copper(II) iron(III) bis-(phosphate), RbCuFe(PO4)2, has been synthesized as single crystals by the flux method. This compound is isostructural with KCuFe(PO4)2 [Badri et al. (2011 ▶), J. Solid State Chem. 184, 937-944]. Its structure built up from Cu2O8 units of edge-sharing CuO5 polyhedra, inter-connected FeO6 octa-hedra through common corners to form undulating chains that extend infinitely along [011] and [01-1] directions. The linkage such ensured PO4...
A new iron phosphate, disodium calcium manganese(II) iron(III) tris(phosphate), Na 2 CaMnFe(PO 4 ) 3 , has been synthesized as single crystals by the flux technique. This compound crystallizes in monoclinic space group C 2/ c . The structure belongs to alluaudite structural type and thus, it obeys X (2) (1) M (PO general formula. Both sites are fully occupied sodium, while is exhibits a statistical distribution of manganese.
A new iron phosphate, rubidium zinc iron(III) RbZnFe(PO 4 ) 2 , has been synthesized as single crystals by the flux method. This compound is isostructural to previously reported KCoAl(PO [Chen et al. (1997). Acta Cryst. C 53 ,1754–1756]. Its structure consists of a three-dimensional framework built up from corner-sharing PO and (Zn,Fe)O tetrahedra. mode linkage forms channels parallel [100], [010] [001] directions in which Rb + ions are located.
Na 2.22 Mn 0.87 In 1.68 (PO 4)3 , sodium manganese indium tris(phosphate) (2.22/0.87/1.68), was obtained in the form of single crystals by a flux method and structurally characterized single-crystal X-ray diffraction. The compound belongs to alluaudite structure type (space group C 2/ c ) with general formula X (2) (1) M 2 4 3 . sites are partially occupied [occupancy 0.7676 (17) 1/2] while fully within mixed distribution sodium/manganese(II) manganese(II)/indium, respectively....
As a contribution to the study of alkaline iron (III) monophosphates, we recently investigated A3PO4-M3(PO4)2-FePO4 (A: alkali metal; M: divalent cation) using both flux method and solid state reaction. This investigation led synthesis structural characterization twelve new compounds. Their analysis showed them be constructed by PO4 tetrahedra FeOx polyhedra (x = 6, 5, 4). The Fe are either isolated or forming finite units corner- edge-sharing, infinite chains edge-sharing octahedra....
Abstract Single crystals of the new title compound are grown in a flux Rb 2 Mo O 7 starting with CO 3 , Zn(NO ) Fe(NO (NH 4 HPO and MoO dissolved HNO (353 K, 24 h) followed by heating dried residue (Pt crucible, 1173 1 h).
Abstract Crystals of the title compound are prepared from HNO 3 solutions containing NaNO , Mg(NO ) 2 Fe(NO and (NH 4 6 Mo 7 O 24 with an atomic ratio Na:Mg:Fe:Mo = 5:1:1:7, which evaporated to dryness followed by heating in air (Pt crucible, 673 K for h, 1123 h).