A general strategy for enabling Fe3O4 with enhanced lithium storage performance: Synergy between yolk-shell nanostructures and doping-free carbon

Na, Zhaolin; Yao, Ruifang; Yan, Qing; Wang, Xinran; Sun, Xudong; Wang, Xuxu

doi:10.1016/j.electacta.2020.137464

Cited by 22 publications

(3 citation statements)

References 34 publications

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“…The electrochemical performance of the Fe 3 O 4 @void@Ndoped C-5 was compared to the results from reports that have previously been published in the literature. The specific capacity and cycling performance of the Fe 3 O 4 @void@N-doped C-5 at 200 mA g −1 reached the level of other similar Fe 3 O 4 -based anode materials [52,53].…”

Section: Resultsmentioning

confidence: 68%

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Wang

et al. 2022

Molecules

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Iron oxides are potential electrode materials for lithium-ion batteries because of their high theoretical capacities, low cost, rich resources, and their non-polluting properties. However, iron oxides demonstrate large volume expansion during the lithium intercalation process, resulting in the electrode material being crushed, which always results in poor cycle performance. In this paper, to solve the above problem, iron oxide/carbon nanocomposites with a hollow core–shell structure were designed. Firstly, an Fe2O3@polydopamine nanocomposite was prepared using an Fe2O3 nanocube and dopamine hydrochloride as precursors. Secondly, an Fe3O4@N-doped C composite was obtained by means of further carbonization treatment. Finally, Fe3O4@void@N-Doped C-x composites with core–shell structures with different void sizes were obtained by means of Fe3O4 etching. The effect of the etching time on the void size was studied. The electrochemical properties of the composites when used as lithium-ion battery materials were studied in more detail. The results showed that the sample that was obtained via etching for 5 h using 2 mol L−1 HCl solution at 30 °C demonstrated better electrochemical performance. The discharge capacity of the Fe3O4@void@N-Doped C-5 was able to reach up to 1222 mA g h−1 under 200 mA g−1 after 100 cycles.

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Section: Resultsmentioning

confidence: 68%

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Wang

et al. 2022

Molecules

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“…40 This demonstrates that the C–C bond occupies a dominant position in the carbon layer while C–O and CO bonds originate from the surface oxidation of exposed samples. 43…”

Section: Resultsmentioning

confidence: 99%

“…40 This demonstrates that the C-C bond occupies a dominant position in the carbon layer while C-O and CvO bonds originate from the surface oxidation of exposed samples. 43 To demonstrate the pore-rich multilayer structure, N 2 -sorption isotherms were used to measure the specific surface area, pore volume and pore size distribution of as-prepared powders. Fig.…”

Section: Papermentioning

confidence: 99%

Core–shell-structured Mn₂SnO₄@Void@C as a stable anode material for lithium-ion batteries with long cycle life

Tong

Liu

et al. 2023

Dalton Trans.

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Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Yang

Jiang

et al. 2021

ChemElectroChem

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Fe 2 O 3 /NiMoO 4 heterostructured microspheres were prepared by a two-step hydrothermal method followed by calcination. The Fe 2 O 3 component in the composite is evolved from FeMoO 4 , which inherits the advantage of high capacity of FeMoO 4 . The heterogeneous structure of the microspheres can enlarge the contact area between the active material and electrolyte so as to reduce the charge transfer resistance. When applied to the anode of lithium-ion battery, the material shows distinguished lithium storage performance and mechanical robustness, benefiting from the high capacity of Fe 2 O 3 and good stability of NiMoO 4 . Moreover, the voids on the surface of the material effectively buffer the volume effect during the repeated cycling. The specific capacity of the composite can reach 1063 mA h g À 1 and 584 mA h g À 1 after 460 and 420 cycles at 300 mA g À 1 and 2 A g À 1 , respectively. The improvement of the electrochemical performance is attributed to the unique structural characteristics and synergistic effect of its heterogeneous phases.

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A general strategy for enabling Fe3O4 with enhanced lithium storage performance: Synergy between yolk-shell nanostructures and doping-free carbon

Cited by 22 publications

References 34 publications

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Core–shell-structured Mn₂SnO₄@Void@C as a stable anode material for lithium-ion batteries with long cycle life

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

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A general strategy for enabling Fe3O4 with enhanced lithium storage performance: Synergy between yolk-shell nanostructures and doping-free carbon

Cited by 22 publications

References 34 publications

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Preparation of Hollow Core–Shell Fe3O4/Nitrogen-Doped Carbon Nanocomposites for Lithium-Ion Batteries

Core–shell-structured Mn2SnO4@Void@C as a stable anode material for lithium-ion batteries with long cycle life

Fe2O3/NiMoO4 Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

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Product

Resources

About

Core–shell-structured Mn₂SnO₄@Void@C as a stable anode material for lithium-ion batteries with long cycle life

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage