Cobalt sulfide nanoparticles anchored in three-dimensional carbon nanosheet networks for lithium and sodium ion batteries with enhanced electrochemical performance

Zhang, Xing; Wang, Hui; Wang, Gang

doi:10.1016/j.jcis.2016.12.071

Cited by 67 publications

(32 citation statements)

References 52 publications

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“…During the corresponding anodic scan, a distinct oxidation peak at 1.76 V could be observed, corresponding to the oxidation of Co to form Co 9 S 8 . Thus, the reaction mechanism of Co 9 S 8 is consistent with the previous report and can be deducted as shown in Equation

true {C o}_{9} S_{8} + 16 {N a}^{+} + 16 e^{-} \to 8 {N a}_{2} S + 9 C o

…”

Section: Resultssupporting

confidence: 89%

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Zhang

Sun³

et al. 2019

ChemElectroChem

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A unique composite (Co 9 S 8 @BNC) consisting of cobalt sulfide (Co 9 S 8 ) embedded in a boron and nitrogen co-doped carbon matrix (BNC) is successfully synthesized as anode material for sodium-ion batteries (SIBs). The BNC matrix was demonstrated to improve the electronic and ion diffusion speed, as well as help buffer the dramatic volumetric expansion during the repeated cycling processes. Benefited from the advantages of BNC matrix, Co 9 S 8 @BNC delivered a high initial reversible capacity of 494 mAh · g À 1 at 100 mA · g À 1 and could remain 388 mAh · g À 1 after 100 cycles. Apart from that, it exhibited an excellent rate performance (258 mAh · g À 1 at the current density of 2 A · g À 1 ) and was demonstrated as pseudocapacitive charge storage. As a consequence, the as-prepared Co 9 S 8 @BNC possesses an exceptional electrochemical performance and could be utilized as a potential anode material candidate for SIBs.[a] T.issues during repeated sodiation processes. The as-made Co 9 S 8 @BNC composite delivered an ultrahigh reversible capacity of 387.8 mAh · g À 1 after 100 cycles, which was better than other materials of Co 9 S 8 combined with another carbon matrix. The present work opens up an efficacious avenue for designing stable B/N co-doped carbon with metal sulfide hybrids for the potentially high-performance SIBs materials combining high energy storage capacity and stability.

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true {C o}_{9} S_{8} + 16 {N a}^{+} + 16 e^{-} \to 8 {N a}_{2} S + 9 C o

…”

Section: Resultssupporting

confidence: 89%

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Zhang

Sun³

et al. 2019

ChemElectroChem

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“…To evaluate the superior electrochemical performance of the hetero‐structural composites, Figure a showed the cyclic voltammetry profiles of Co 9 S 8 /ZnS@NC at a scan rate of 0.2 mV s −1 between 0.01 V and 3.0 V with multiple redox peaks. In the initial scan, the broad peak around 0.50–1.30 V attributed to the conversion of Co 9 S 8 and ZnS, the alloying reaction of Zn (FigureS7a), and the formation of solid electrolyte interface (SEI) film . Afterwards, the redox peaks at around 1.30/2.0 V is corresponded to conversion reaction between Co 9 S 8 and Co/Li 2 S, and the another couple of redox peak at around 0.80/1.58 V can be ascribed to the conversion reaction between ZnS and Zn/Li 2 S, and alloying/dealloying transformation Zn and Li x Zn .…”

Section: Resultsmentioning

confidence: 92%

Bimetal‐organic Framework‐derived Co₉S₈/ZnS@NC Heterostructures for Superior Lithium‐ion Storage

Duan

Wang

et al. 2020

Chemistry An Asian Journal

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Heterostructure engineering of electrode materials, which is expected to accelerate the ion/electron transport rates driven by a built-in internal electric field at the heterointerface, offers unprecedented promise in improving their cycling stability and rate performance. Herein, carbon nanotubes with Co 9 S 8 /ZnS heterostructures embedded in a N-doped carbon framework (Co 9 S 8 /ZnS@NC) have been rationally designed via an in-situ vapor chemical transformation strategy with the aid of thiophene, which not only acted as carbon source for the growth of carbon nanotubes but also as sulfur source for the sulfurization of metal Zn and Co. Density functional theory (DFT) calculation shows an about 3.24 eV electrostatic potential difference between ZnS and Co 9 S 8 , which results in a strong electrostatic field across the interface that makes electrons transfer from Co 9 S 8 to the ZnS side. As expected, a stable cycling performance with reversible capacity of 411.2 mAh g À 1 at 1000 mA g À 1 after 300 cycles, excellent rate capability (324 mAh g À 1 at 2000 A g À 1 ) and a high percentage of pseudocapacitance contribution (87.5% at 2.2 mv/s) for lithium-ion batteries (LIBs) are achieved. This work provides a possible strategy for designing multicomponent heterostructural materials for application in energy storage and conversion fields.[a] Prof.

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“…The obtained Co 9 S 8 /C composites showed a high capacity of 505 mA h g −1 , although the capacity dropped to 404 mA h g −1 after 50 cycles. Zhang et al prepared Co 9 S 8 nanoparticles embedded in 3D carbon nanosheet networks . Quite different from the performance in LIBs, the capacity loss for SIBs was over 50% within 50 cycles.…”

Section: Nonlayered Mxsmentioning

confidence: 99%

Advances and Challenges in Metal Sulfides/Selenides for Next‐Generation Rechargeable Sodium‐Ion Batteries

et al. 2017

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Rechargeable sodium-ion batteries (SIBs), as the most promising alternative to commercial lithium-ion batteries, have received tremendous attention during the last decade. Among all the anode materials for SIBs, metal sulfides/selenides (MXs) have shown inspiring results because of their versatile material species and high theoretical capacity. They suffer from large volume expansion, however, which leads to bad cycling performance. Thus, methods such as carbon modification, nanosize design, electrolyte optimization, and cut-off voltage control are used to obtain enhanced performance. Here, recent progress on MXs is summarized in terms of arranging the crystal structure, synthesis methods, electrochemical performance, mechanisms, and kinetics. Challenges are presented and effective ways to solve the problems are proposed, and a perspective for future material design is also given. It is hoped that light is shed on the development of MXs to help finally find applications for next-generation rechargeable batteries.

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Cobalt sulfide nanoparticles anchored in three-dimensional carbon nanosheet networks for lithium and sodium ion batteries with enhanced electrochemical performance

Cited by 67 publications

References 52 publications

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Bimetal‐organic Framework‐derived Co₉S₈/ZnS@NC Heterostructures for Superior Lithium‐ion Storage

Advances and Challenges in Metal Sulfides/Selenides for Next‐Generation Rechargeable Sodium‐Ion Batteries

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Cobalt sulfide nanoparticles anchored in three-dimensional carbon nanosheet networks for lithium and sodium ion batteries with enhanced electrochemical performance

Cited by 67 publications

References 52 publications

Facile Fabrication of Co9S8 Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Facile Fabrication of Co9S8 Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Bimetal‐organic Framework‐derived Co9S8/ZnS@NC Heterostructures for Superior Lithium‐ion Storage

Advances and Challenges in Metal Sulfides/Selenides for Next‐Generation Rechargeable Sodium‐Ion Batteries

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Product

Resources

About

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Facile Fabrication of Co₉S₈ Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode

Bimetal‐organic Framework‐derived Co₉S₈/ZnS@NC Heterostructures for Superior Lithium‐ion Storage