3D MoS2 foam integrated with carbon paper as binder-free anode for high performance sodium-ion batteries

Zheng, Fangying; Wei, Zeyu; Xia, Huicong; Tu, Yunchuan; Meng, Xiangyu; Zhu, Kaixin; Zhao, Jiao; Zhu, Yimin; Zhang, Jianan; Yang, Yan; Deng, Dehui

doi:10.1016/j.jechem.2021.05.021

Cited by 53 publications

(30 citation statements)

References 42 publications

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“…Molybdenum disulfide (MoS 2 ) nanosheets, as a two-dimensional transition-metal dichalcogenide material, possess good biocompatibility and a high special surface area. − Specially, they contain negatively charged Mo–S dipoles, which can interact with −CH 2 dipoles in PVDF through electrostatic interactions, making them a remarkable candidate for inducing β phase formation . In detail, MoS 2 nanosheets can serve as platforms to lock −CH 2 in PVDF via an electrostatic interaction and force −CH 2 to align perpendicularly to the basal plane of MoS 2 and bialy to one side of the PVDF chain, thereby forming a full-reverse planar zigzag configuration of the β phase.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Gao

Peng

et al. 2021

ACS Appl. Nano Mater.

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Piezoelectric polyvinylidene fluoride (PVDF) provided an opportunity for non-invasive in situ electrical stimulation of cell behavior, yet its electroactive β phase was difficult to obtain due to its instability in the molten state. Herein, polyaniline (PANI) protrusions were in situ oxidation-polymerized on molybdenum disulfide (MoS2) nanosheets (PANI-MoS2). Then, PANI-MoS2 was introduced into laser additive-manufactured PVDF scaffolds. On the one hand, PANI protrusions produced steric hindrance between adjacent MoS2 nanosheets and inhibited the stacking and aggregating of MoS2. On the other hand, PANI-MoS2 could serve as a platform to achieve interfacial polarization locking. Specifically, Mo–S dipoles in MoS2 and π electron clouds over the N atom in PANI locked −CH2 dipoles in PVDF through electrostatic and hydrogen bond interactions, respectively, which forced −CH2 to align perpendicularly to the basal plane of MoS2 and bialy to one side of the PVDF main chain, thereby forming a full-reverse planar zigzag configuration of the polarized β phase and maintaining its stable existence. The results demonstrated that the β phase of the scaffolds was significantly increased from 43 to 90%, which resulted in an enhanced electrical output performance. The improved electrical output greatly promoted osteoblast-like cell proliferation and differentiation. Furthermore, owing to the pulling-out effect of MoS2 and improved interfacial stress transfer between MoS2 and the polymer matrix, the mechanical properties of scaffolds were also enhanced. These findings suggested that the piezoelectric scaffolds had great potential in bone tissue engineering.

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Section: Introductionmentioning

confidence: 99%

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Gao

Peng

et al. 2021

ACS Appl. Nano Mater.

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“…After 10 cycles, D Na increases significantly due to the better charge-transfer kinetics and conductivity. The binder-free VCNT/MoS 2 hybrid composite electrode exhibits better D Na than the previous reports on MoS 2 -based anodes for SIBs. ,, …”

Section: Resultsmentioning

confidence: 99%

“…The binder-free VCNT/ MoS 2 hybrid composite electrode exhibits better D Na than the previous reports on MoS 2 -based anodes for SIBs. 16,48,49 Post-Mortem Analysis of the Cycled Electrodes. A post-mortem ex situ TEM analysis was conducted to reveal the stability of the electrode material after 2 and 10 charge/ discharge cycles.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Moving toward Smart Hybrid Vertical Carbon/MoS₂ Binder-Free Electrodes for High-Performing Sodium-Ion Batteries

Shaji

Santhosh

Zavašnik

et al. 2023

ACS Sustainable Chem. Eng.

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Finding potential electrodes with smart construction and design is one of the major tasks in the development of advanced sodium-ion batteries (SIBs) and in bridging the gap by bringing them to realization. In this work, we report on the design of such a binder-free composite anode realized by combining vertical carbon nanotube/molybdenum sulfide (VCNT/MoS 2 ) hybrid nanostructures. The well-aligned vertical nanostructures in the binder-free VCNT/MoS 2 hybrid composite electrode enhance the electrolyte penetration into the electrode and shorten the ion diffusion channels. Moreover, the VCNT provides better ion/ electron conductivity for the electrode. Due to these favorable characteristics, binder-free VCNT/MoS 2 hybrid composite electrodes exhibit superior electrochemical properties when employed as an anode for SIBs, especially superior rate capability with a specific discharge capacity of 403 mA h g −1 at a high current density of 3200 mA g −1 . The findings are expected to lead us in the direction of designing smart electrodes with hybrid nanostructured active materials, completely free of any binder for high-performing electrochemical energy storage applications.

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“…Nonetheless, MoS 2 always suffers from capacity decays during cycling and low electronic conductivity owing to the huge volume change and inevitable aggregation plus the deformation of 2D layers. 13 In response to the features above, one appropriate and reasonable structural design is to prepare ultrathin and exfoliated MoS 2 with expanded interlayer distance, thereby reducing structural volume change caused by Na + intercalation and combination with high energy density materials like carbonitride nanofilms. 14−17 In terms of two-dimensional (2D) materials, 18−21 MXene as a new emerging material has attracted great interest.…”

Section: Introductionmentioning

confidence: 99%

“…Many investigations have been made in developing MoS 2 based electrode materials due to its typical analogue to graphite layered materials, providing a high sodium storage capacity (theoretical capacities of 670 mA h g –1 ) for SIBs. − S–Mo–S three-atom layer bonded by weak van der Waals force in exfoliated MoS 2 possesses an interlayer distance that could reach 0.62 nm which is much larger than the radius of the Na + (1.02 Å). Nonetheless, MoS 2 always suffers from capacity decays during cycling and low electronic conductivity owing to the huge volume change and inevitable aggregation plus the deformation of 2D layers . In response to the features above, one appropriate and reasonable structural design is to prepare ultrathin and exfoliated MoS 2 with expanded interlayer distance, thereby reducing structural volume change caused by Na + intercalation and combination with high energy density materials like carbonitride nanofilms. − …”

Section: Introductionmentioning

confidence: 99%

Interlayer-Expanded MoS₂ Nanoflowers Vertically Aligned on MXene@Dual-Phased TiO₂ as High-Performance Anode for Sodium-Ion Batteries

Zhang

Song

et al. 2022

ACS Appl. Mater. Interfaces

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As a promising energy-storage and conversion anode material for high-power sodium-ion batteries operated at room temperature, the practical application of layered molybdenum disulfide (MoS2) is hindered by volumetric expansion during cycling. To address this issue, a rational design of MoS2 with enlarged lattice spacing aligned vertically on hierarchically porous Ti3C2T x MXene nanosheets with partially oxidized rutile and anatase dual-phased TiO2 (MoS2@MXene@D-TiO2) composites via one-step hydrothermal method without following anneal process is reported. This unique “plane-to-surface” structure accomplishes hindering MoS2 from aggregating and restacking, enabling sufficient electrode/electrolyte interaction simultaneously. Meanwhile, the heterogeneous structure among dual-phased TiO2, MoS2, and MXene could constitute a built-in electric field, promoting high Na+ transportation. As a result, the as-constructed 3D MoS2@MXene@D-TiO2 heterostructure delivers admirable high-rate reversible capacity (359.6 mAh g–1 up to 5 A g–1) at room temperature, excellent cycling stability (about 200 mAh g–1) at a low temperature of −30 °C, and superior electrochemical performance in Na+ full batteries by coupling with a Na3V2(PO4)3 cathode. This ingenious design is clean and facile to inspire the potential of advanced low-dimensional heterogeneous structure electrode materials in the application of high-performance sodium-ion batteries.

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3D MoS2 foam integrated with carbon paper as binder-free anode for high performance sodium-ion batteries

Cited by 53 publications

References 42 publications

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Moving toward Smart Hybrid Vertical Carbon/MoS₂ Binder-Free Electrodes for High-Performing Sodium-Ion Batteries

Interlayer-Expanded MoS₂ Nanoflowers Vertically Aligned on MXene@Dual-Phased TiO₂ as High-Performance Anode for Sodium-Ion Batteries

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3D MoS2 foam integrated with carbon paper as binder-free anode for high performance sodium-ion batteries

Cited by 53 publications

References 42 publications

Polyaniline Protrusions on MoS2 Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Polyaniline Protrusions on MoS2 Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Moving toward Smart Hybrid Vertical Carbon/MoS2 Binder-Free Electrodes for High-Performing Sodium-Ion Batteries

Interlayer-Expanded MoS2 Nanoflowers Vertically Aligned on MXene@Dual-Phased TiO2 as High-Performance Anode for Sodium-Ion Batteries

Contact Info

Product

Resources

About

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Polyaniline Protrusions on MoS₂ Nanosheets for PVDF Scaffolds with Improved Electrical Stimulation

Moving toward Smart Hybrid Vertical Carbon/MoS₂ Binder-Free Electrodes for High-Performing Sodium-Ion Batteries

Interlayer-Expanded MoS₂ Nanoflowers Vertically Aligned on MXene@Dual-Phased TiO₂ as High-Performance Anode for Sodium-Ion Batteries