Fe1.5Ti0.5O3 nanoparticles as an anode material for lithium-ion batteries

Facile synthesis of porous Fe2TiO5microparticulates serving as anode material with enhanced electrochemical performances

“…1.8 V and 1.7 V, which disappear in the second cycle, can be attributed to the insertion of Li + into Fe 2 TiO 5 resulting in the crystal structure destruction, and the lithium storage in TiO 2 to form Li x TiO 2 (TiO 2 + xLi + + xe À / Li x TiO 2 ). 10,16,41 The following peak at ca. 1.2 V corresponds to the lithium intercalation into Fe 2 O 3 (Fe 2 O 3 + 2Li + + 2e À / Li(Fe 2 O 3 )), 10,42,43 while the peak centered at about 0.6 V could be ascribed to the further reduction of Fe 3+ into Fe 0 (Li(Fe 2 O 3 ) + 4Li + + 4e À / 2Fe 0 + 3Li 2 O), and the formation of amorphous Li 2 O and solid-electrolyte interface (SEI) layer.…”

Effects of Fe2O3 on crystallisation and properties of R2O–CaO–MgO–Al2O3–SiO2–Fe2O3 glass ceramics

“…The EDS semi-quantitative results (Table 2) suggest that Ti 4+ had entered the crystal lattice of Fe 2 O 3 and formed Fe 1.5 Ti 0.5 O 3 , due to the similar ionic radii of Ti 4+ (0.068 nm) and Fe 3+ (0.064 nm). Thus some Fe 3+ can be substituted by Ti 4+ in the lattice to form a substitutional solid solution [12]. The subordinate crystalline phase is K(NaCa)Mg 5 Si 8 O 22 F 2 , which has a weak diffraction pattern.…”

Microstructure and Chemical Transformation of Natural Ilmenite during Isothermal Roasting Process in Air Atmosphere

“…Ilmenite A0 and A1 were obtained by a sample crusher for 0 s and 240 s; the average grain diameters are 64.5 and 19.8 µm, respectively. Pseudorutile powder was synthesized by a hydrothermal method via tetra-n-butyl titanate (Ti(OBu) 4 ) and ferric nitrate (Fe(NO 3 ) 3 •9H 2 O) [27]. The synthetic product consists of pseudorutile and a small amount of titanium dioxide, as indicated in Figure 1.…”