Urchin-like α-Fe2O3/MnO2 hierarchical hollow composite microspheres as lithium-ion battery anodes

Wang, Dongxia; Wang, Yong; Li, Qingyuan; Guo, Wenbin; Zhang, Fanchao; Niu, Shanshan

doi:10.1016/j.jpowsour.2018.05.017

Cited by 60 publications

(21 citation statements)

References 58 publications

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“…Meanwhile, the surface of TCFs was basically unchanged when replacing CMTCFs (Figure ). Thus, the ‐C = O radicals on the surface of CMTCFs can effectively adsorb manganese ions and promote the nucleation and growth of MnO 2 on the surface of CMTCFs 33 . It was beneficial to the growth of MnO 2 nanosheets on the surface of CMTCFs.…”

Section: Resultsmentioning

confidence: 97%

“…Thus, the -C = O radicals on the surface of CMTCFs can effectively adsorb manganese ions and promote the nucleation and growth of MnO 2 on the surface of CMTCFs. 33 It was beneficial to the growth of MnO 2 nanosheets on the surface of CMTCFs. However, compared with TCFs, the rate performance of CMTCFs electrode has not been improved due to the acid treatment ( Figure S4).…”

Section: Design and Characterization Of Cmtcfs/mnomentioning

confidence: 99%

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Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes

Chen

Yang

et al. 2020

J. Am. Ceram. Soc.

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Three kinds of novel carboxyl modification tubular carbon nanofibers (CMTCFs) and MnO 2 composites materials (CMTCFs/MnO 2) are prepared by combining hypercrosslinking, liquid phase oxidation and hydrothermal technology. The complex morphology and crystal phase of MnO 2 in CMTCFs/MnO 2 are effectively regulated by adjusting the hydrothermal reaction time. The δ-MnO 2 nanosheet-wrapped CMTCFs (CMTCFs@MNS) are used as anode and compared with the other two CMTCFs/ MnO 2. Electrochemical analysis shows that CMTCFs@MNS electrode exhibits a large reversible capacity of 1497.1 mAh g −1 after 300 cycles at 1000 mA g −1 and a long cycling reversible capacity of 400.8 mAh g −1 can be maintained after 1000 cycles at 10 000 mA g −1. CMTCFs@MNS manifests an average reversible capacity of 256.32 mAh g −1 at 10 000 mA g −1 after twelve changes in current density. In addition, the structural superiority of CMTCFs@MNS electrode is clarified by characterizing the microscopic morphology and crystal phase of the electrode after electrochemical performance test.

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Section: Resultsmentioning

confidence: 97%

Section: Design and Characterization Of Cmtcfs/mnomentioning

confidence: 99%

Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes

Chen

Yang

et al. 2020

J. Am. Ceram. Soc.

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“…[43][44][45] As shown in Figure 5e,t he binding energies of 710.7 and 724.6 eV match well with Fe 2p 3/2 and Fe 2p 1/2 ,r espectively. [46,47] The high-resolution spectrum of O1sc an be deconvoluted into two peaks centered at 529.4 and 530.5 eV,w hich are denoted as O I and O II ,r espectively. [48,49] The O I ions are related to the lattice oxygen atoms in af ully coordinated environment, and the O II ions can be assigned to the oxygen deficiencies of the samples.…”

Section: Resultsmentioning

confidence: 99%

Oxygen‐Vacancy‐Abundant Ferrites on N‐Doped Carbon Nanosheets as High‐Performance Li‐Ion Battery Anodes

Yue

Ren

Wang

et al. 2020

Chemistry A European J

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Transition metal oxides, as one of the most promising anode materials for lithium‐ion batteries, often suffer from poor electronic conductivity and serious structural collapse. In this work, oxygen‐vacancy‐abundant CoFe2O4 and NiFe2O4 deposited on N‐doped carbon nanosheets are designed and fabricated through a calcination procedure and a solvothermal strategy using Zn‐hexamine coordination frameworks as precursors. The as‐prepared NC@CoFe2O4 and NC@NiFe2O4 hybrids display improved cycle performances and rate capacities compared with CoFe2O4, NiFe2O4, and Fe2O3. The enhanced lithium storage performances of NC@CoFe2O4 and NC@NiFe2O4 are attributed to the oxygen vacancies and conductive N‐doped carbon nanosheets, which increase the electronic conductivity and electrochemical reaction kinetics. The synthetic process in this work provides a new perspective for designing other high‐performance transition metal oxide anodes.

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“…[9,13,14] Besides, the relatively large surface area of hierarchical hollow structures endows the materials with numerous Li-ion storage sites and high Li-ion flux across the electrode/electrolyte interface. [15][16][17] For instance, hollow Fe 3 O 4 microspheres assembled from ultrathin nanosheets manifest excellent Li-storage performance due to the unique structural advantages. [18] Another effective strategy to improve the Li-storage performance of anodes is to construct hybrid materials consisting of carbon and other alloytype [19,20] or conversion-type components.…”

Section: Introductionmentioning

confidence: 99%

Hollow Structured Carbon@FeSe Nanocomposite as a Promising Anode Material for Li‐Ion Batteries

et al. 2019

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Carbon@FeSe nanocomposites with homogeneous hollow microspherical and nanotubular structures are prepared using sulfonated polystyrene microspheres and sulfonated poly(divinylbenzene) nanotubes as both the template and carbon source. Benefiting from their hollow core-shell and hierarchical micro/nanostructures, the carbon@FeSe nanocomposites as the anode material of Li-ion batteries exhibit high capacities with a steady discharge plateau of 1.5 V (vs. Li/Li + ), stable cycling performance (700 mAh g À 1 in the 200th cycle at 800 mA g À 1 ), and good rate behavior (620 mAh g À 1 at 16 A g À 1 ). The steady discharge plateau of carbon@FeSe, together with its high capacity, renders it a promising anode material for Li-ion batteries.

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Urchin-like α-Fe2O3/MnO2 hierarchical hollow composite microspheres as lithium-ion battery anodes

Cited by 60 publications

References 58 publications

Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes

Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes

Oxygen‐Vacancy‐Abundant Ferrites on N‐Doped Carbon Nanosheets as High‐Performance Li‐Ion Battery Anodes

Hollow Structured Carbon@FeSe Nanocomposite as a Promising Anode Material for Li‐Ion Batteries

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Urchin-like α-Fe2O3/MnO2 hierarchical hollow composite microspheres as lithium-ion battery anodes

Cited by 60 publications

References 58 publications

Tailoring carboxyl tubular carbon nanofibers/MnO2 composites for high‐performance lithium‐ion battery anodes

Tailoring carboxyl tubular carbon nanofibers/MnO2 composites for high‐performance lithium‐ion battery anodes

Oxygen‐Vacancy‐Abundant Ferrites on N‐Doped Carbon Nanosheets as High‐Performance Li‐Ion Battery Anodes

Hollow Structured Carbon@FeSe Nanocomposite as a Promising Anode Material for Li‐Ion Batteries

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Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes

Tailoring carboxyl tubular carbon nanofibers/MnO₂ composites for high‐performance lithium‐ion battery anodes