Rationally designed carbon-coated Fe3O4 coaxial nanotubes with hierarchical porosity as high-rate anodes for lithium ion batteries

Sulfurization of FeOOH nanorods on a carbon cloth and their conversion into Fe2O3/Fe3O4–S core−shell nanorods for lithium storage

“…After 100 charge-discharge cycles, a reversible capacity of 538 mA h g -1 can be retained, which is higher and comparable to some other iron-oxide based electrodes. 2,9,11,18,22 It demonstrated that the FFS composite material can bear high current density, meanwhile it could also deliver high reversible capacity with coulombic efficiency maintained at 100 %. Fig.…”

Dopant-induced shape evolution of polyhedral magnetite nanocrystals and their morphology/component-dependent high-rate electrochemical performance for lithium-ion batteries

“…It can be seen clearly from the inset diagram that the initial discharge process is characterized by one strong reduction peak at $0.85 V, which can be ascribed to the reductive reaction Mn 0.6 Fe 2.4 O 4 + Li + / Mn 0 + Fe 0 + Li 2 O and, possibly, along with the irreversible reactions of electrolyte to form a solid electrolyte interface (SEI) layer. 26,27 For the charge process, in contrast, two diffusive oxidation peaks may be found at $1.62 V and 1.81 V, corresponding to the oxidation reactions of Mn 0 , Fe 0 to Mn 2+ , Fe 2+ and Fe 3+ , respectively during the anodic process. 28,29 As to the 2nd cycle, the initial discharge peak appear to gradually split into three consequent peaks: two small peaks of them appearing at $0.84 and 1.25 V, and the third strong peak occurring at $1.01 V, suggesting a nonuniform electrochemical reaction occurring on Interestingly, the discharge peaks show a continuous intensity increase and slight voltage drop during the following 500 cycles, and a high discharge voltage of 0.87 V can be retained aer 500 cycles.…”

Tailoring Iron Oxide Nanostructures for High-Capacity Lithium Storage

“…[136] Cellulose nanofibers and other 1D nanostructures can also be employed as the scaffold material or sacrificial templates to prepare 1D Fe3O4 based nanofibers/nanowires/nanotubes. [132][133][134][135][136] Huang et al…”

“…[134] Lu's group reported the synthesis of carbon coated Fe3O4 nanotubes by using α-MoO3 nanorods as the hard template. [135] An et al synthesized porous Fe3O4-amorphous vanadium oxide-graphene (Fe3O4-VOx-graphene) ternary nanowires ( Figure 7f) by reducing graphene decorated iron vanadate (FeVO4·1.1H2O) nanowires in 5%/95% H2/Ar. [136] Fe3O4-based 2D nanostructures Fe3O4-graphene nanocomposite is the most extensively studied Fe3O4-based 2D nanostructures.…”