Extremely facile preparation of high-performance Fe2O3 anode for lithium-ion batteries

Li, Zhiyang; Mao, Yuning; Tian, Qinghua; Zhang, Wei; Yang, Li

doi:10.1016/j.jallcom.2018.12.392

Cited by 46 publications

(16 citation statements)

References 54 publications

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“…Figure 6a displays the initial five cycles of cyclic voltammetry curve for the Fe 2 O 3 @h-Co 9 S 8 @C electrode at a scan rate of 0.1 mV s −1 in the potential window of 0.01 to 3.00 V. The obvious reduction peaks around 0.68 V in the first cycle (Figure 6a; Figure S13a, Supporting Information) ascribes to the reduction of Fe 3+ /Fe 2+ and Fe 2+ /Fe 0 along with the formation of metallic Fe and Li 2 O. [30] The reduction peaks around 1.71 and 1.30 V are same as the reduction peaks of Co 9 S 8 @C (shown in Figure S13b, Supporting Information), corresponding to the reduction of Co 9 S 8 /Li x Co 9 S 8 and Li x Co 9 S 8 /Co 0 , respectively. [9d] Correspondingly, there are two couples of oxidation peaks range from 1.5 to 2.5 V, which attributes to the oxidation of Fe 0 /Fe 3+ and Co 0 /Co 9 S 8 .…”

Section: Electrochemical Performance Toward Lithium-ion Batteriesmentioning

confidence: 94%

Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Huang

Jin

et al. 2021

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considered ideal solutions for achieving energy conversion and storage in a sustainable way. [2] Nowadays, the key challenges of using these technologies and devices lie in the developments of more efficient and stable electrode materials. For the electrochemical water splitting, due to the high overpotential and intrinsically sluggish reaction kinetics of the oxygen evolution reaction (OER), low-cost, high efficiency and stable earth-abundant electrocatalysts are required to enhance the energy conversion efficiency. [3] Similarly, the commercial graphite anode materials for LIBs have limited inherent theoretical capacity (≈372 mAh g −1 ), which cannot meet the requirements of high energy density batteries for rapidly growing smartphone, electrical vehicles, and aerospace applications. How to further improve the energy density of LIBs faces great challenges. Therefore, it is urgent to invent competitive multifunctional electrode nanomaterials with suitable components and architectures for highly efficient OER electrocatalysts and highperformance LIBs.Recently, iron-based oxides have been widely studied in the fields of energy storage and conversions owing to their high electrochemical activity, rich redox properties, natural abundance, and simple preparation. [4] However, the electrocatalytic activity of Fe-based oxides is highly dependent on theirThe development of high-efficiency, robust, and available electrode materials for oxygen evolution reaction (OER) and lithium-ion batteries (LIBs) is critical for clean and sustainable energy system but remains challenging. Herein, a unique yolk-shell structure of Fe 2 O 3 nanotube@hollow Co 9 S 8 nanocage@C is rationally prepared. In a prearranged sequence, the fabrication of Fe 2 O 3 nanotubes is followed by coating of zeolitic imidazolate framework (ZIF-67) layer, chemical etching of ZIF-67 by thioacetamide, and eventual annealing treatment. Benefiting from the hollow structures of Fe 2 O 3 nanotubes and Co 9 S 8 nanocages, the conductivity of carbon coating and the synergy effects between different components, the titled sample possesses abundant accessible active sites, favorable electron transfer rate, and exceptional reaction kinetics in the electrocatalysis. As a result, excellent electrocatalytic activity for alkaline OER is achieved, which delivers a low overpotential of 205 mV at the current density of 10 mA cm −2 along with the Tafel slope of 55 mV dec −1 . Moreover, this material exhibits excellent high-rate capability and excellent cycle life when employed as anode material of LIBs. This work provides a novel approach for the design and the construction of multifunctional electrode materials for energy conversion and storage.

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Section: Electrochemical Performance Toward Lithium-ion Batteriesmentioning

confidence: 94%

Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Huang

Jin

et al. 2021

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“…However, the poor conductivity and violent volume expansion of α-Fe 2 O 3 during the discharge/charge progress result in its poor rate and cycling performance as an anode material in Li-ion batteries. To overcome these problems, many researchers have expended considerable efforts to test potential solutions, such as various morphologies [porous quasi-clusters ( Li Z. et al, 2019 ), porous nanotubes ( Wang Z. et al, 2018 ), and one-dimensional mesoporous nanowires ( Li et al, 2020 )] and conductive carbon material coatings [graphene oxide ( Zhang et al, 2019 ), carbon cloth ( Narsimulu et al, 2019 ), N-doped carbon hybrids ( Li et al, 2018 ), and spherical graphite ( Yan et al, 2020 )]. Although the rate and cycling performance of α-Fe 2 O 3 have been improved, they have still not reached satisfactory levels.…”

Section: Introductionmentioning

confidence: 99%

Robust α-Fe2O3@TiO2 Core–Shell Structures With Tunable Buffer Chambers for High-Performance Lithium Storage

et al. 2022

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α-Fe2O3 has high potential energy storage capacity and can serve as a green and low-cost anode material for lithium-ion batteries. However, α-Fe2O3 suffers large volume expansion and pulverization. Based on DFT calculations, TiO2 can effectively maintain the integrity of the crystal structure during the discharge/charge process. Well-defined cubic α-Fe2O3 is coated with a TiO2 layer using the hydrothermal method with the assistance of oxalic acid surface treatment, and then α-Fe2O3@TiO2 with tunable buffer chambers is obtained by altering the hydrochloric acid etching time. With the joint efforts of the buffer chamber and the robust structure of the TiO2 layer, α-Fe2O3@TiO2 alleviates the expansion of α-Fe2O3 during the discharge/charge process. The optimized sample (FT-1h) achieves good cycling performance. The reversible specific capacity remains at 893.7 mA h g-1, and the Coulombic efficiency still reaches up to 98.47% after 150 cycles at a current density of 100 mA g−1. Furthermore, the reversible specific capacity can return to 555.5 mA h g−1 at 100 mA g−1 after cycling at a high current density. Hence, the buffer chamber and the robust TiO2 layer can effectively improve the cycling stability and rate performance of α-Fe2O3.

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“…Iron oxide has two main types, including magnetite Fe3O4 [5,6] and hematite Fe2O3 [7⎼9]. Fe2O3 nanoparticles are considered to be of great interest because of their physical properties [7⎼9] and variety of applications such as photocatalytic degradation of bisphenol A [10], H2S removal at low temperature [11], as anode materials in Li-ion batteries [12], photoelectrochemical water splitting [13], adsorption capability towards acid-dyes [14], photocatalytic degradation towards RhB [15]. Until now, iron oxides with various sizes, shapes and morphologies have been prepared via hydro-and solvothermal [5,6], co-precipitation ultrasonic irradiation [16], conventional solidphase [17], electrospray [13] and green chemistry [18⎼21].…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

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Khalaji

Sangdevini

Mousavi

et al. 2021

Asian J. Nanosci. Mater.

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In this work, a new iron precursor was prepared, calcinated at 500 °C and 600 °C. The final α-Fe2O3 products (named Fe-500 and Fe-600) were characterized using the Fourier transformed infrared spectroscopy (FT-IR), UV-Vis, X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) analysis. The results of the FT-IR analysis demonstrated thet the sharp peaks at wavenumbers 450-650 cm -1 confirmed the stretching vibration of Fe-O. The XRD results revealed that the product prepared at 500 °C was a mixture of 59% rhombohedral and 41% cubic phases of Fe2O3 with only 11% of cubic phase Fe2O3 in the sample processed at 600 °C. TEM images showed a slight increase in particle size by increasing the calcination temperature. The magnetic properties of the products depicted a weak ferromagnetic behavior.

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Extremely facile preparation of high-performance Fe2O3 anode for lithium-ion batteries

Cited by 46 publications

References 54 publications

Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Robust α-Fe2O3@TiO2 Core–Shell Structures With Tunable Buffer Chambers for High-Performance Lithium Storage

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Extremely facile preparation of high-performance Fe2O3 anode for lithium-ion batteries

Cited by 46 publications

References 54 publications

Encapsulating Fe2O3 Nanotubes into Carbon‐Coated Co9S8 Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Encapsulating Fe2O3 Nanotubes into Carbon‐Coated Co9S8 Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Robust α-Fe2O3@TiO2 Core–Shell Structures With Tunable Buffer Chambers for High-Performance Lithium Storage

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Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage

Encapsulating Fe₂O₃ Nanotubes into Carbon‐Coated Co₉S₈ Nanocages Derived from a MOFs‐Directed Strategy for Efficient Oxygen Evolution Reactions and Li‐Ions Storage