Nanoflake δ-MnO2 deposited on carbon nanotubes-graphene-Ni foam scaffolds as self-standing three-dimensional porous anodes for high-rate-performance lithium-ion batteries

Zhai, Xue; Mao, Zhu; Zhao, Guangyu; Rooney, David; Zhang, Naiqing; Sun, Kening

doi:10.1016/j.jpowsour.2018.09.057

Cited by 34 publications

(13 citation statements)

References 46 publications

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“…It was consistent with the CV curves of Figure 5A. 37,38 The irreversible capacity could be mainly attributed to the formation of SEI film and the irreversible insertion of Li-ion during the first discharge. The charge capacity was 517.8 mAh g −1 , and the coulombic efficiency was 62.6%.…”

Section: Electrochemical Properties Of Nanofiberssupporting

confidence: 86%

“…It was similar to the previous studies. 37,38 The irreversible capacity could be mainly attributed to the formation of SEI film and the irreversible insertion of Li-ion during the first discharge. The cycling performances of MTCFs and TCFs under current density of 100 mA g −1 were shown in Figure 5 C. As can be seen from the curves, the reversible capacity of MTCFs was 517.8 mAh g −1 in the initial cycle.…”

Section: Electrochemical Properties Of Nanofibersmentioning

confidence: 99%

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Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

Wang

Chen

et al. 2019

Int J Energy Res

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Summary Novel magnetic tubular carbon nanofibers (MTCFs) are prepared through the combination technique of hypercrosslinking, control extraction, and carbonization. The diameter of MTCFs is mainly concentrated between 90 and 120 nm, and the average tube diameter is about 30 nm. A trace amount of Fe3O4 exists inside the MTCFs with a particle size of 3 nm, which is formed by in situ conversion of the catalyst (FeCl3) for the hypercrosslinking reaction. The MTCFs with high surface area (448.74 m2 g−1) and porous wall are used as anode material for lithium‐ion batteries. The electrochemical properties of MTCFs are compared, and tubular carbon nanofibers (TCFs) prepared by the complete extraction. Electrochemical analysis shows that the introduction of Fe3O4 nanoparticles makes MTCFs have higher reversible capacity and better rate performance. MTCFs exhibit high reversible specific capacity of 1011.7 mAh g−1 after 150 cycles at current density of 100 mA g−1. Even at high current density of 3000 mA g−1, a remarkable reversible capacity of 270.0 mAh g−1 is still delivered. Thus, the novel MTCFs show potential application value in anode material for high‐performance lithium‐ion battery.

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Section: Electrochemical Properties Of Nanofiberssupporting

confidence: 86%

Section: Electrochemical Properties Of Nanofibersmentioning

confidence: 99%

Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

Wang

Chen

et al. 2019

Int J Energy Res

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“…), oxides (NiCo 2 O 4 , MnO 2 , V 2 O 5 , Bi 2 O 3 , etc. ), TMDs (MoS 2 , ReS 2, etc. ), which can be directly grown on the 1D support via the hydrothermal/solvothermal approach.…”

Section: D‐2d Synergized Nanostructurementioning

confidence: 99%

“…Furthermore, a core/shell structured N‐CNT/MoS 2 composite displayed a much higher rate behavior and cycling stability than those of MoS 2 alone in LIBs and SIBs . A hierarchical CNTs/δ‐MnO 2 composite was synthesized by two‐step CVD growth and a facile hydrothermal process, which exhibited extraordinarily high reversible capacity and outstanding cycling performance . In several cases, the shell is proposed to serve as a protecting layer to alleviate the distortion of oxides/sulfides nanofiber as well, which is often caused by the harsh and frequent phase variation during cycling.…”

Section: Applicationsmentioning

confidence: 99%

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

Wang

2019

InfoMat

236

142

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To address the worldwide energy challenges, advanced energy storage and conversion systems with high comprehensive performances, as the promising technologies, are inevitably required on a timely basis. The performance of these energy systems is intimately dependent on the properties of their electrodes. In addition to the electrode materials selection and their compositional optimization, materials fabrication with the designed nanostructure also provides significant benefits for their performances. In the past decade, considerable efforts have been made to promote the search for multidimensional nanostructures containing both onedimensional (1D) and two-dimensional (2D) nanostructures in synergy, namely, 1D-2D synergized nanostructures. By developing the freestanding electrodes with such unique nanoarchitectures, the structural features and electroactivities of each component can be manifested, where the synergistic properties among them can be simultaneously obtained for further enhanced properties, such as the increased number of active sites, fast electronic/ionic transport, and so forth. This review overviews the state-of-the-art on the 1D-2D synergized nanostructures, which can be broadly divided into three groups, namely, core/shell, cactus-like, and sandwich-like nanostructures. For each category, we introduce them from the aspects of structural features, fabrication methodologies to their successful applications in different types of energy storage/conversion devices, including rechargeable batteries, supercapacitors, water splitting, and so forth. Finally, the main challenges faced by and perspectives on the 1D-2D synergized nanostructures are discussed. K E Y W O R D S1D-2D synergized nanostructure, cactus-like nanostructure, core/shell nanostructure, energy storage/conversion, sandwich-like nanostructure

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“…The introduction of one‐dimensional materials can simultaneously stabilize the electrode structure and provide fast transmission channels for ions and electrons 28 . For example, δ‐MnO 2 ‐CNTs‐G‐NF is used as self‐standing anode material and exhibits a specific capacity of 490 mAh g −1 after 700 cycles at 4.0 A g −1 29 . Hierarchical MnO 2 @Fe 3 O 4 /CNT film has been designed and shows excellent electrochemical performance.…”

Section: Introductionmentioning

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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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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Nanoflake δ-MnO2 deposited on carbon nanotubes-graphene-Ni foam scaffolds as self-standing three-dimensional porous anodes for high-rate-performance lithium-ion batteries

Cited by 34 publications

References 46 publications

Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

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

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Nanoflake δ-MnO2 deposited on carbon nanotubes-graphene-Ni foam scaffolds as self-standing three-dimensional porous anodes for high-rate-performance lithium-ion batteries

Cited by 34 publications

References 46 publications

Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

Magnetic tubular carbon nanofibers as anode electrodes for high‐performance lithium‐ion batteries

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

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

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