Confined growth of 2D MoS<sub>2</sub> nanosheets in N-doped pearl necklace-like structured carbon nanofibers with boosted lithium and sodium storage performance

Wu, Huayu; Zhang, Xiue; Wu, Qianhui; Han, Yue; Wu, Xiaoyu; Ji, Penglei; Zhou, Min; Diao, Guowang; Chen, Ming

doi:10.1039/c9cc07291h

Cited by 59 publications

(28 citation statements)

References 36 publications

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“…The impedance spectra have been fitted using the equivalent circuit models (insets in Figure ), and circuit elements of R e , R s , R ct , W 1 , and CPE in equivalent circuit models represent electrolyte resistance, SEI resistance, charge-transfer resistance, Warburg impedance, and a constant phase element, respectively. , The simulation results are given in Table S3. The diffusion coefficient value of Li + ( D ) can be calculated with eqs and , where Z ′, R D , R L , δ, and ω in eq represent the real part of the AC impedance, diffusive resistance, liquid resistance, Warburg factor, and angular frequency. A , n , and C in eq represent the SSA of the electrode (cm –2 ), the number of transferred electrons, and the concentration of Li + (mol cm –3 ).…”

Section: Resultsmentioning

confidence: 99%

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Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

et al. 2021

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Multi-yolk–shell MnO@mesoporous carbon (MnO@m-carbon) nanopomegranates, featuring MnO nanoparticles within cavities of m-carbon with internal space between the MnO nanoparticle and a cavity carbon shell, were subtly constructed. Moreover, the buffer space was well controlled by means of regulating the size of the cavity in m-carbon or the content of MnO. The results of electrochemical measurements demonstrated that MnO(10)@m-carbon(22) nanopomegranates (MnO nanoparticle, 15 nm; cavity size, 22 nm) had the best cycling and rate performance for lithium ion storage. The pomegranate-like MnO@m-carbon nanostructures have shown several advantages for their excellent performance: the nanocavity in m-carbon can restrict the growth and agglomeration of MnO nanoparticles; the well-interconnected mesoporous carbon matrix provides a “highway” for electrons and lithium ion transport; the voids between the MnO nanoparticle and cavity shell can alleviate the volume expansion.

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Section: Resultsmentioning

confidence: 99%

“…53,57 The simulation results are given in Table S3. The diffusion coefficient value of Li + (D) can be calculated with eqs 1 and 2 58,59 σω…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

et al. 2021

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“…Especially for the influence of graphene, 2D materials, with atomic or molecular thickness and large plane lengths-shortening the electron/ion diffusion path, have been paid great attention in energy storage. [128] In this regard, 2D Nb-based materials with large transverse size, controllable clearance, and abundant active sites are ideal energy storage materials. [129] However, they also have some problems, such as restack/aggregation of single layer and poor conductivity.…”

Section: Two-dimensionalmentioning

confidence: 99%

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Lian

Yang

Wang

et al. 2020

Adv Energy and Sustain Res

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In various energy storage devices, the development and research of electrode materials has always been a key factor. Nb‐based materials are one choice of energy storage materials because of the good ion‐diffusion channels and high theoretical capacity. More importantly, their advantages, such as safe potential range, high structural stability, and highly reversible redox reaction with small strain, are conducive to efficient, safe, and stable energy storage development. Based on aforementioned superiority, much of the research is to further optimize performance of Nb‐based materials by unique nano‐morphology design, lattice regulation, and functional additives composition, showing good electrochemical performance in many kinds of devices. This review mainly introduces the classification of Nb‐based materials used for energy storage, their application in different battery systems, and common optimization methods. Accordingly, the deficiencies and prospects of Nb‐based materials are also discussed in detail.

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“…The chemical formula of conversion‐type anode materials can be denoted as MX, where M corresponds to transition metal, and X represents element such as O and S [115,116] . Compared with metal oxides, metal sulfides with weak M−S bonds are believed to improve the kinetics of conversion reaction, and have been widely studied as host materials for sodium ions [47,49,117–119] …”

Section: Materials For Sicsmentioning

confidence: 99%

Sodium‐Ion Capacitors: Recent Development in Electrode Materials

Zhang

et al. 2021

Batteries & Supercaps

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Sodium‐ion hybrid capacitors (SICs), combining the advantages of both sodium‐ion batteries (SIBs) and electrochemical supercapacitors, have captured sustained attention in the field of energy storage devices due to their high energy and power density, long lifespan, and excellent operation stability. However, conventional SICs based on battery‐type anodes and capacitive‐type cathodes suffer from imbalance on capacity and kinetics. In this regard, rational structure design on electrode materials is still necessary for SICs. Over the past two decades, tremendous efforts have been devoted to the exploration of suitable electrode materials to fabricate high‐performance SICs. Herein, after a brief introduction on the charge storage mechanisms of SICs, the recent developments on electrode materials for SICs are summarized, especially focusing on material design strategies as well as the relationship between structure and corresponding electrochemical performances. Furthermore, the challenges and opportunities for the further development of SICs are also proposed.

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Confined growth of 2D MoS₂ nanosheets in N-doped pearl necklace-like structured carbon nanofibers with boosted lithium and sodium storage performance

Abstract: N-Doped amber necklace-like structured MoS2@carbon nanofibers (ANL MoS2@CNFs) were fabricated via the confined growth, constructing a hierarchical structure with 2D nanosheets, yolk–shell structures, 1D nanofibers, and 3D cross-linked networks.

Cited by 59 publications

References 36 publications

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Sodium‐Ion Capacitors: Recent Development in Electrode Materials

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Confined growth of 2D MoS2 nanosheets in N-doped pearl necklace-like structured carbon nanofibers with boosted lithium and sodium storage performance

Abstract: N-Doped amber necklace-like structured MoS2@carbon nanofibers (ANL MoS2@CNFs) were fabricated via the confined growth, constructing a hierarchical structure with 2D nanosheets, yolk–shell structures, 1D nanofibers, and 3D cross-linked networks.

Cited by 59 publications

References 36 publications

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Sodium‐Ion Capacitors: Recent Development in Electrode Materials

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Confined growth of 2D MoS₂ nanosheets in N-doped pearl necklace-like structured carbon nanofibers with boosted lithium and sodium storage performance