A5021507693- Crystal Structures and Properties
- Chemical Synthesis and Characterization
- X-ray Diffraction in Crystallography
- Advanced Condensed Matter Physics
- Polyoxometalates: Synthesis and Applications
- Crystallization and Solubility Studies
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Inorganic Chemistry and Materials
- Thermal and Kinetic Analysis
- Microwave Dielectric Ceramics Synthesis
- Luminescence Properties of Advanced Materials
- Extraction and Separation Processes
- Magnetic and transport properties of perovskites and related materials
- Nuclear materials and radiation effects
- Zeolite Catalysis and Synthesis
- Plant and Fungal Species Descriptions
- Magnetic Properties and Synthesis of Ferrites
- Metal-Organic Frameworks: Synthesis and Applications
- Electronic and Structural Properties of Oxides
- Inorganic Fluorides and Related Compounds
- Dielectric properties of ceramics
- Solid-state spectroscopy and crystallography
Mohammed V University
2016-2025
Tongji University
2020-2023
Laboratoire de Chimie
2023
Laboratoire de Physique Théorique de la Matière Condensée
2018-2020
Laboratoire de physique de la matière condensée
2018-2020
Université de Picardie Jules Verne
2019
Abstract Since the report of electrochemical activity LiFePO 4 from Goodenough's group in 1997, it has attracted considerable attention as cathode material choice for lithium‐ion batteries. It shows excellent performance such high‐rate capability, long cyclability, and improved safety. Furthermore, raw materials cost are lower abundant compared with conventional Li‐ion battery oxides compounds. The lithium extraction operates biphase mechanism accompanied by a relatively large volume change...
The present study investigates the effect of manganese incorporation on structural, dielectric, and waste bioconversion LiTaO3 ferroelectric material. Conventional solid-state synthesis techniques were utilized to produce powder samples, which subsequently analyzed using room-temperature X-ray diffraction (XRD) for phase identification. analysis revealed that material forms a continuous solid solution within composition range 0 25 mol% (Mn), exhibiting R3c-Rombohedral symmetry. Thermal...
Cycling positive electrode materials with high voltages and long lifetimes remains a challenge. On the one hand, operating electrodes at is usually accompanied by severe structural distortions irreversible reactions. other significant volume variation upon Na+ insertion/extraction limits cycling life. Here, we report defective material chemical formula of Na3.2□0.8Co0.5Fe0.5V(PO3.9F0.1)3 (□ represents Na vacancy) through fluorine doping activated reversible fast intercalation/deintercalation...
The rational design of novel high-performance cathode materials for sodium-ion batteries is a challenge the development renewable energy sector. Here, new sodium-deficient NASICON phosphate, namely Na3.40 □0.60 Co0.5 Fe0.5 V(PO4 )3 , demonstrating excellent electrochemical performance reported. presence Co allows third Na+ to participate in reaction thus exhibiting high reversible capacity ≈155 mAh g-1 voltage range 2.0-4.0 V versus /Na with single-phase mechanism and small volume shrinkage...
Effect of microstructure on conductivity earth-abundant NASICON phosphate, Na 4 MnFe(PO ) 3 , was investigated. Small particle size is designed showing improved conductivity.
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....
Single crystals of the title compounds, disodium di(cobalt/iron) cobalt tris(orthovanadate), Na 2 (Fe/Co) Co(VO 4 ) 3 , and disilver Ag were grown from a melt consisting stoichiometric mixtures three metallic cation precursors vanadium pentoxide. The difficulty to distinguish between iron by using X-ray diffraction alone forced us explore several models, assuming an oxidation state +II for Co +III Fe partial cationic disorder in Wyckoff site 8 f containing mixture with statistical...
A novel phosphate containing barium, cobalt, and iron was synthesized in single-crystal polycrystalline forms. Single crystal-based X-ray measurements revealed that it crystallizes the monoclinic system with
The magnetic properties of a novel cobalt-based hydrogen vanadate, Co13.5(OH)6(H0.5VO3.5)2(VO4)6, are reported. This new material was synthesized in single-crystal form using conventional hydrothermal method. Its crystal structure determined from X-ray diffraction data and also characterized by scanning electron microscopy. framework has dumortierite-like consisting large hexagonal trigonal channels; the channels contain one-dimensional chains face-sharing CoO6 octahedra linked to rings VO4...