- Crystal Structures and Properties
- Chemical Synthesis and Characterization
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Polyoxometalates: Synthesis and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Inorganic Chemistry and Materials
- Advanced Condensed Matter Physics
- Solid-state spectroscopy and crystallography
- Zeolite Catalysis and Synthesis
- Crystal structures of chemical compounds
- Luminescence Properties of Advanced Materials
- Ferroelectric and Piezoelectric Materials
- Thermal and Kinetic Analysis
- Photorefractive and Nonlinear Optics
- Advanced Photocatalysis Techniques
- Microwave Dielectric Ceramics Synthesis
- Catalytic Processes in Materials Science
- Nuclear materials and radiation effects
- Gas Sensing Nanomaterials and Sensors
- Catalysis and Oxidation Reactions
- Inorganic Fluorides and Related Compounds
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Advanced Battery Materials and Technologies
Mohammed V University
2015-2024
Laboratoire de Chimie
2018-2023
Centre des Matériaux
2018-2020
Graz University of Technology
2018-2020
University of Kentucky
2020
Laboratoire de Chimie Physique
1998-2015
In this study, we have successfully prepared tetragonal lanthanum vanadate LaVO
Effect of microstructure on conductivity earth-abundant NASICON phosphate, Na 4 MnFe(PO ) 3 , was investigated. Small particle size is designed showing improved conductivity.
The title compound, Na2Co2Fe(PO4)3, was synthesized by a solid-state reaction. This new stoichiometric phase crystallizes in an alluaudite-like structure. In this structure, all atoms are general positions except for four which located at the special of C2/c space group. One Co atom, one P and Na atom on Wyckoff position 4e (2), while second is inversion centre 4a (-1). other Fe occupy with statistical distribution. open framework results from [(Co,Fe)2O10] units edge-sharing [(Co,Fe)O6]...
The new title compound, disodium dizinc iron(III) tris(phosphate), Na 1.67 Zn Fe 1.33 (PO 4 ) 3 , which belongs to the alluaudite family, has been synthesized by solid-state reactions. In this structure, all atoms are in general positions except for four, located on special of C 2/ c space group. This structure is characterized cation substitutional disorder at two sites, one situated position e (2) and other 8 f . site partially occupied + [0.332 (3)], whereas entirely filled a mixture Zn....
The title compound, AgMg(3)(PO(4))(HPO(4))(2), which has been synthesized by the hydro-thermal method, an alluaudite-like structure is formed edge-sharing MgO(6) octa-hedra (one of symmetry 2), resulting in chains linked together phosphate groups and hydrogen bonds. three-dimensional framework leads to two different channels along c axis, one occupied Ag(+) ions with a square-planar coordination. are disordered over sites 0.89 (3):0.11 (3) ratio. OH groups, point into other type channel,...
The title compound, sodium trimagnesium bis-(hydrogen phosphate) phosphate, was obtained under hydro-thermal conditions. In the crystal, two types of [MgO6] octa-hedra, one with point group symmetry 2, share edges to build chains extending parallel [10-1]. These are linked together by kinds phosphate tetra-hedra, HPO4 and PO4, latter 2. three-dimensional framework delimits different channels along [001]. One channel hosts Na(+) cations (site 2) surrounded eight O atoms, Na-O bond lengths...
The title compound, strontium trimanganese tris-(ortho-phosphate), was synthesized under hydro-thermal conditions. Its structure is isotypic to that of the lead analogue PbMn(II) 2Mn(III)(PO4)3. Two O atoms are in general positions, whereas all others special positions. Sr and one P atom exhibit mm2 symmetry, Mn(II) 2/m Mn(III) other .2. symmetry two located on mirror planes. three-dimensional network crystal made up types chains running parallel [010]. One chain linear composed alternating...
The title compound, SrNi2Fe(PO4)3, synthesized by solid-state reaction, crystallizes in an ordered variant of the α-CrPO4 structure. In asymmetric unit, two O atoms are general positions, whereas all others special positions space group Imma: Sr cation and one P atom occupy Wyckoff position 4e (mm2), Fe is on 4b (2/m), Ni other 8g (2), 8h (m) 8i (m). three-dimensional framework crystal structure built up [PO4] tetra-hedra, [FeO6] octa-hedra [Ni2O10] dimers edge-sharing octa-hedra, linked...
The title compound, barium trimanganese tris(orthophosphate), was synthesized hydrothermally. Its structure is isotypic with the lead and strontium analogues AMnII2MnIII(PO4)3 (A = Pb, Sr). Except for two O atoms on general positions, all are located special positions. Ba one P atom exhibit mm2 symmetry, MnII 2/m MnIII other .2. symmetry mirror planes. crystal contains types of chains running parallel to [010]. One chain linear composed alternating MnIIIO6 octahedra PO4 tetrahedra...
The title compound, lead trimanganese tris(orthophosphate), has been synthesized by hydro-thermal methods. In this structure, only two O atoms are in general positions and all others the special of Imma space group. Indeed, Wyckoff namely: Pb1 P1 on 4e (mm2); Mn1 4b (2/m); Mn2 P2 8g (2); O1 8h (m); O2 8i (m). crystal structure can be viewed as a three-dimensional network corner- edge-sharing PO4 tetra-hedra MnO6 octa-hedra, building types chains running along b axis. first is an infinite...
The title compound, Ag2Ni3(HPO4)(PO4)2, has been synthesized by the hydrothermal method. Its structure is formed two types of chains running along b axis. first chain results from a linear and continuous succession NiO6 octahedra linked to PO4 tetrahedra common vertex. second built up adjacent edge-sharing (dimers) whose ends are edge. Those together phosphate groups form polyhedral sheets parallel (001) plane. three-dimensional framework delimits hexagonal tunnels a-axis direction, at...
A novel pyrophosphate Na7Ni3Fe(P2O7)4 was synthesized in two distinct forms, single-crystal and powder. Single-crystal X-ray diffraction used to determine the crystal structure, powder scanning electron microscopy were examine purity morphology of elaborated This phosphate crystallizes P1¯ space group triclinic system with a = 6.3677 (2) Å, b 9.3316 (4) c 10.8478 α 65.191 (1)°, β 80.533 (1)° γ 73.042 (1)°. The framework is assembled from linkage centro-symmetrical clusters Ni2(Ni/Fe)2P4O28....
The new silver-, cobalt- and iron-based phosphate, silver cobalt iron tris(ortho-phosphate), Ag1.655Co1.64Fe1.36(PO4)3, was synthesized by solid-state reactions. Its structure is isotypic to that of Na2Co2Fe(PO4)3, belongs the alluaudite family, with a partial cationic disorder, AgI atoms being located on an inversion centre twofold rotation axis sites (Wyckoff positions 4a 4e), occupancies 0.885 (2) 0.7688 (19), respectively. One two P in asymmetric unit completely fills one 4e site while...
The title compound, sodium (sodium,manganese) triiron(II,III) tris[vana-date(V)], (Na0.70)(Na0.70,Mn0.30)(Fe(3+),Fe(2+))2Fe(2+)(VO4)3, was prepared by solid-state reactions. It crystallizes in an alluaudite-like structure, characterized a partial cationic disorder. In the four of 12 sites asymmetric unit are located on special positions, three twofold rotation axis (Wyckoff position 4e) and one inversion centre (4b). Two entirely filled Fe(2+) V(5+), whereas third site has occupancy 70%...
The title compound, SrCo 2 Fe(PO 4 ) 3 , has been synthesized by a solid-state reaction. It crystallizes with the α-CrPO type structure. In this structure, all atoms are on special positions of Imma space group, except for two O which located general positions. three-dimensional network in crystal structure is made up types layers stacked normal to (100). first layer built from edge-sharing CoO 6 octahedra, leading formation Co 10 dimers that connected PO tetrahedra common edge and corners....
Single crystals of sodium copper(II) indium bis[phosphate(V)], NaCuIn(PO 4 ) 2 , were grown from the melt under atmospheric conditions. The title phosphate crystallizes in space group P 1 / n and is isotypic with KCuFe(PO . In crystal, two [CuO 5 ] trigonal bipyramids share an edge to form a dimer [Cu O 8 that connected PO tetrahedra. obtained 12 units are interconnected through vertices sheets sandwiched between undulating layers resulting junction tetrahedra [InO 6 octahedra. types...