Spinel Structure
Enhancement of the electrochemical performance of the spinel structure LiNi0 5 xGaxMn1 5O4 cathode material by Ga doping
... For more detailed analysis of the electrochemical behav- ior, the dQ/dV plots are represented in Fig. 7a–e. The peak at approximately 4.0 V is shown in Fig. 7f, which should be assigned to Mn 3+ /Mn 4+ redox couple [25], ...
10
Synthesis and Characterisation of Nickel Ferrite Nanoparticles Prepared by Spray Pyrolysis Method
... Nickel ferrite nanoparticles of ultrafine size were successfully prepared by spray pyrolysis method. The structural characterization of the samples is done using XRD and FTIR. XRD pattern of all samples show the ...
8
The Effects of Cu and Zn Dopants on Phase Constituents, Magnetic Properties and Microstructure of Nickel Ferrite
... the spinel structure. In order to substitute a cation in the structure with another one their ionic radius must be near each other and their structure should be the ...
7
Mesoporous Spinel LiMn2O4 Nanomaterial as a Cathode for High-Performance Lithium Ion Batteries
... complete spinel LMO structure without any other phases, whereas the SS-LMO prepared by the SSR method consists of main LMO and extra phase of Mn 2 O 3 ...complete spinel structure, ...
10
Lithium divanadate spinel, LiV2O4
... normal spinel structure type. The V atoms (16d) have octahedral coordination [V—O = 1.9709 (7) A ˚ ] and are arranged in a pyrochlore-type sublattice [V V = 2.9147 (4) A ˚ ]. The Li atoms (8a) have ...
6
The Influence of Zn2+ Ions Substitution on the Microstructure and Transport Properties of Mn Zn Nanoferrites
... cubic spinel structure, which indicates that the crystallographic planes of the characteristic peaks of cubic spinel structure that perfectly matched with the theoretical data of Franklinite ...
12
Properties of Zinc Ferrite Nanoparticles Due to PVP Mediation and Annealing at 500°C
... inverse spinel crystal structure with an average particle size of ...inverse spinel structure for the as-prepared and annealed samples, which witnesses a vibra- tional red shift towards a ...
10
Selective Removal of Lead (II) Ion from Wastewater Using Superparamagnetic Monodispersed Iron Oxide (Fe3O4) Nanoparticles as a Effective Adsorbent
... The Scanning electron microscopy (SEM) image (Figure 1) of the sample revealed that the magnetic Fe 3 O 4 nanoparticles synthesized in this study were monodispersed with an average diameter of around 24 nm. Figure 2(a) ...
6
Structure and Electrochemical Properties of Spinel Li4Ti5O12 Nanocomposites as Anode for Lithium-Ion Battery
... with edge length around 20 nm and a few layers of graphitic coating on the surface. The average sizes of both LTO particles agree well with the above XRD calculations. Furthermore, both HRTEM images reveal that the ...
14
Effect of Annealing Temperature on the Structural and Magnetic Properties of NiFe2O4 Nanoferrites
... found to be the most versatile technological material suited for high-frequency applications due to its high resistivity [1] [2]. In the bulk state, this material pos- sesses an inverse spinel structure, in ...
10
Phase Formation and Crystallinity-Dependent Magnetic Parameters of Co1-xFe2+xO4 Nanoparticals
... 1000C o are given in Fig.1. Except for the as prepared sample, the patterns reveal that the diffraction line corresponding to the characteristic peaks of cubic spinel type lattice appeared. Application of the ...
6
LiMn2O4–yBry Nanoparticles Synthesized by a Room Temperature Solid State Coordination Method
... phase spinel structure. The results indicate that the structure of the ternary spinel remains when some of the O 2- in the spinel phase are replaced by Br - ...the spinel ...
6
IC ROW A V EAB S O RP TI ON,CO ND UC TI V I TYA ND PLEX P E M I TTI VI TYOF F R I TL E S SNiCuMnO
... oxalic precursor method shows absorbing nature over a large range of frequency in the X and Ku band region of the electromagnetic spectrum. It has spinel structure and porous morphology, the grain size ...
12
Crystal structure of spinel type Li0 64Fe2 15Ge0 21O4
... ideal spinel structure consists of a closed packing of anions X, with one-eighth of the tetrahedral interstices and one-half of the octahedral interstices occupied by the ...
6
Relationship of structural and electronic properties in transition metal oxides
... ordering behaviour. However, the Ni^"^ is susceptible to oxidation to Ni(III), which is also stable in an octahedral environment. Therefore, the more likely cause of the reduced degree of cation ordering in the Ni ...
317
Zinc Ferrite Nanoparticle Synthesis and Characterization; Effects of Annealing Temperature on the Size of nanoparticles
... Nanosized zinc ferrite particles were synthesized by co-precipitation methods at different annealing temperatures to analyze the effect of annealing temperature on the particle size of the compound. The structure ...
9
Effect of Aluminium Doping on Structural and Magnetic Properties of Ni Zn Ferrite Nanoparticles
... inverse spinel and zinc ferrite a model normal one ...mixed spinel structure, due to the redi- stribution of metal ions over the tetrahedral and octahedral sites, which can be drastically modified ...
10
Synthesis and Characterization of Fe3O4 Magnetic Nanoparticles Coated with Carboxymethyl Chitosan Grafted Sodium Methacrylate
... In the reported research, we have demonstrated a novel approach to synthesis magnetic nanoparticles with ionic structure by using CMCH-g-PAA (Na). The synthesis mechanism of this process was discussed and the ...
9
Polar Spinel-Perovskite Interfaces : an atomistic study of Fe3O4(111)/SrTiO3(111) structure and functionality
... on spinel-perovskite heterostructures that have great potential for the development of multiferroic devices by using Fe 3 O 4 /SrTiO 3 as a model system 11,12 ...
8
Polar Spinel-Perovskite Interfaces : an atomistic study of Fe3O4(111)/SrTiO3(111) structure and functionality
... he puzzling magnetic behaviour in the ZFC curves cannot be explained by the conventional TEM and SAED observations alone, but requires deeper structural analysis. STEM imaging was used to determine the atomic ...
9