High stability graphene oxide aerogel supported ultrafine Fe3O4 particles with superior performance as a Li-ion battery anode

Kopuklu, Buse Bulut; Taşdemir, Adnan; Gürsel, Selmiye Alkan; Yürüm, Alp

doi:10.1016/j.carbon.2020.12.049

Cited by 78 publications

(45 citation statements)

References 67 publications

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“…The peaks at 285.79 and 288.98 eV are attributed to C–O and O–C=O. 10 , 21 The peak at 530.10 eV of the O 1s spectrum corresponds to (FeCoNi)–O. The binding energies at 531.92 and 533.82 eV are the bonds between carbon- and oxygen-containing groups on the surface of metal oxides, which are C–O, and −O–C=O ( Figure 4 c).…”

Section: Results and Discussionmentioning

confidence: 99%

“…However, the reconstruction provides new active sites and surfaces, indicating that the surface reactions occur even with higher kinetics, leading to continuous capacity increment in the subsequent cycle. 17 , 21 , 23 After 330 cycles, the reversible specific capacity and CE of (FeCoNi) 3 O 4 @C-700 are ∼653.4 mAh g –1 and 100%, respectively. Under the same conditions, the after-cycling reversible specific capacities of (FeCoNi) 3 O 4 @C-600 and (FeCoNi) 3 O 4 @C-800 are 527.8 and 120.6 mAh g –1 , respectively.…”

Section: Results and Discussionmentioning

confidence: 99%

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MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

Zhao

Wang

et al. 2022

ACS Omega

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Fe 3 O 4 is a promising alternative for next-generation lithium-ion batteries (LIBs). However, its poor cycle stability due to the large volume effect during cycling and poor conductivity hinders its application. Herein, we have successfully designed and prepared a carbon-coated ternary transition-metal-oxide composite (noted as (FeCoNi) 3 O 4 @C), which is derived from FeCoNi-MOF-74 (denoted as FeCoNi-211-24). (FeCoNi) 3 O 4 @C perfectly inherited the long spindle-shaped precursor structure, and (FeCoNi) 3 O 4 particles grew in situ on the precursor surface. The ordered particles and the carbon-coated structure inhibited the agglomeration of particles, improving the material’s cycle stability and conductivity. Therefore, the electrode exhibited excellent electrochemical performance. Specifically, (FeCoNi) 3 O 4 @C-700 presented excellent initial discharge capacity (763.1 mAh g –1 at 0.2 A g –1 ), high initial coulombic efficiency (73.8%), excellent rate capability, and cycle stability (634.6 mAh g –1 at 0.5 A g –1 after 505 cycles). This study provides a novel idea for developing anode materials for LIBs.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

Zhao

Wang

et al. 2022

ACS Omega

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“…[ 17 ] The XPS spectra of Fe 2p (Figure 3e) further show that not only the peaks of Fe 2+ ions appear at ≈710.7 and 723.8 eV, but also the peaks of Fe 3+ ions appear at ≈713.9 and 727.2 eV. [ 18 ] The characteristic peaks appearing at ≈718.7 and 732.3 eV are satellite peaks of Fe 2+ ions. [ 18a ] The density of states calculations was also used to give an insight into Fe elements and Vo on the electronic structure of MnO.…”

Section: Resultsmentioning

confidence: 99%

“…[ 18 ] The characteristic peaks appearing at ≈718.7 and 732.3 eV are satellite peaks of Fe 2+ ions. [ 18a ] The density of states calculations was also used to give an insight into Fe elements and Vo on the electronic structure of MnO. Compared with MnO (Figure 3f), a significant impurity level appears near 0.88 eV in Fe‐MnO model (Figure 3g), which can act as a hopper for the carrier to reduce the activation energy barrier and improve the conductivity of the material.…”

Section: Resultsmentioning

confidence: 99%

Heterogeneous Atoms Substituted Rock Salt Phase Mn₁_‐xFe_xO Solid Solution with Rich Defects for Advanced Lithium‐Ion Batteries

Liu

Zhang

et al. 2021

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Heterogeneous atoms substitution is an efficient method for promoting Li+ storage of transition metal oxides. Herein, a series of Fe‐substituted MnO solid solutions with different Fe contents are synthesized by a feasible solid‐phase method. The synergistic effects between heterogeneous atoms and rich vacancies are synchronously obtained, which hold distinctive electronic structures and substantial active sites. When optimized Mn0.55Fe0.45O solid solution as anodes for lithium‐ion batteries, pre‐prepared electrodes exhibit reversible lithium storage of 1286.9 mAh g–1 at 1 A g −1 after 400 cycles and even 628.1 mAh g–1 at 2 A g–1 after 1000 cycles. The LiCoO2//Mn0.55Fe0.45O full cells are assembled, achieving the reversible capacity of 130.2 and 111.3 mAh g–1 after 150 cycles at 0.1 and 0.2 A g–1, respectively. Density functional theory calculations also authenticate that the electrochemical activity can be markedly boosted by the heterogeneous atoms substituted Mn1‐xFexO solid solution.

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“…[ 8 ] Among them, Fe 3 O 4 has attracted considerable attention because of its outstanding specific capacity of ≈926 mAh g −1 , safe lithium intercalation potential, low cost, and environmental friendliness. [ 9 ] However, due to the inherently low electronic/ionic conductivity and drastic changes in volume during cycling, leading to irreversible capacity fading, poor cycling stability, and even safety issues, which hinders further the commercial applications of Fe 3 O 4 electrode. [ 10 ] To address these limitations, several promising strategies have been proposed, such as combining carbon materials to improve electronic conductivity and buffer volume expansion, reducing the size of materials or constructing hollow structures to increase the mass transfer rate and alleviate stress caused by volume expansion, and doping heteroatoms to enhance structural stability.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Performance and Mechanism of Surface‐Fluorinated Fe₃O₄ as Stable Anode for Lithium‐Ion Batteries

Fan

Xiao

et al. 2022

Energy Tech

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Iron oxides are considered as potential anode materials for lithium‐ion batteries thanks to their high theoretical capacity, rich resources, and environmental friendliness. However, the rapid capacity decay and sluggish kinetics greatly limit their practical application. Herein, a simple surface fluorination strategy is developed to greatly improve the electrochemical properties of Fe3O4. The fluorinated layer can act as a protective film to stabilize the electrode/electrolyte interface, enhance the wettability of the electrode to shorten the Li+ diffusion pathway, and provide more active centers to facilitate charge storage. Consequently, the fabricated fluorinated Fe3O4 electrode demonstrates high specific capacity (1379 mAh g−1 at 0.5 A g−1 after 300 cycles) and impressive high‐rate performance (876, 802, and 456 mAh g−1 at 5, 10, and 20 A g−1, respectively, after 1000 cycles), which outperforms most of the Fe3O4‐based electrodes recorded so far. This material design strategy may open up a new way for the development of high‐performance anode materials for energy storage based on earth‐rich materials, and advance the understanding of the core role of electrode surfaces/interfaces in battery systems.

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High stability graphene oxide aerogel supported ultrafine Fe3O4 particles with superior performance as a Li-ion battery anode

Cited by 78 publications

References 67 publications

MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

Heterogeneous Atoms Substituted Rock Salt Phase Mn₁_‐xFe_xO Solid Solution with Rich Defects for Advanced Lithium‐Ion Batteries

Electrochemical Performance and Mechanism of Surface‐Fluorinated Fe₃O₄ as Stable Anode for Lithium‐Ion Batteries

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High stability graphene oxide aerogel supported ultrafine Fe3O4 particles with superior performance as a Li-ion battery anode

Cited by 78 publications

References 67 publications

MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

MOF-Derived Long Spindle-like Carbon-Coated Ternary Transition-Metal-Oxide Composite for Lithium Storage

Heterogeneous Atoms Substituted Rock Salt Phase Mn1‐xFexO Solid Solution with Rich Defects for Advanced Lithium‐Ion Batteries

Electrochemical Performance and Mechanism of Surface‐Fluorinated Fe3O4 as Stable Anode for Lithium‐Ion Batteries

Contact Info

Product

Resources

About

Heterogeneous Atoms Substituted Rock Salt Phase Mn₁_‐xFe_xO Solid Solution with Rich Defects for Advanced Lithium‐Ion Batteries

Electrochemical Performance and Mechanism of Surface‐Fluorinated Fe₃O₄ as Stable Anode for Lithium‐Ion Batteries