2007
DOI: 10.1002/adfm.200601186
|View full text |Cite
|
Sign up to set email alerts
|

α‐Fe2O3 Nanoflakes as an Anode Material for Li‐Ion Batteries

Abstract: Nanoflakes of α‐Fe2O3 were prepared on Cu foil by using a thermal treatment method. The nanoflakes were characterized by X‐ray diffraction, scanning electron microscopy, high‐resolution transmission electron microscopy, and Raman spectroscopy. The reversible Li‐cycling properties of the α‐Fe2O3 nanoflakes have been evaluated by cyclic voltammery, galvanostatic discharge–charge cycling, and impedance spectral measurements on cells with Li metal as the counter and reference electrodes, at ambient temperature. Re… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

31
693
10
4

Year Published

2012
2012
2022
2022

Publication Types

Select...
5
5

Relationship

0
10

Authors

Journals

citations
Cited by 1,055 publications
(746 citation statements)
references
References 39 publications
31
693
10
4
Order By: Relevance
“…Although early work on Fe2O3 anodes resulted in high initial capacities, much of the capacity was lost with extended cycling. More recently, advanced Fe2O3 structures such as nanoflakes [166], nanocapsules [167], nanodiscs [168], hollow nanoparticles [169], nanotubes [170], and reduced-graphene/Fe2O3 nanocomposites [171] have emerged with enhanced Li-ion performance. Liu et al [170], prepared 1D α-Fe2O3 and C-Fe2O3 nanotubes grown directly on conducting substrates by a so-called "sacrificial template-accelerated hydrolysis" (STAH) method, using arrays of ZnO nanowires as hard templates.…”
Section: Iron Oxidesmentioning
confidence: 99%
“…Although early work on Fe2O3 anodes resulted in high initial capacities, much of the capacity was lost with extended cycling. More recently, advanced Fe2O3 structures such as nanoflakes [166], nanocapsules [167], nanodiscs [168], hollow nanoparticles [169], nanotubes [170], and reduced-graphene/Fe2O3 nanocomposites [171] have emerged with enhanced Li-ion performance. Liu et al [170], prepared 1D α-Fe2O3 and C-Fe2O3 nanotubes grown directly on conducting substrates by a so-called "sacrificial template-accelerated hydrolysis" (STAH) method, using arrays of ZnO nanowires as hard templates.…”
Section: Iron Oxidesmentioning
confidence: 99%
“…The complex impedance spectra as a function of the different states of charge/discharge contain information such as variations in the kinetics of lithiation/delithiation across the electrode/electrolyte interface. 44 Impedance spectra of the cells were recorded at room temperature between 100 kHz and 10 mHz with an AC amplitude of 20 mV S À1 . The cells were discharged/charged to different potentials and the electrode impedance was then measured.…”
Section: Electrochemical Lithiationmentioning
confidence: 99%
“…Some of the impedance features are originated from wellknown processes. 17 At high frequencies, a rather constant arc corresponds to the parallel connection between the doublelayer capacitance C dl ≈ 50 μF and surface charge transfer resistance R ct ≈ 25 Ω. An additional series resistance accounts for the solution contribution R s ≈ 12 Ω.…”
Section: ■ Introductionmentioning
confidence: 99%