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Polypyrrole Modified MoS 2 Nanorod Composites as Durable Pseudocapacitive Anode Materials for Sodium-Ion Batteries.

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Title: Polypyrrole Modified MoS 2 Nanorod Composites as Durable Pseudocapacitive Anode Materials for Sodium-Ion Batteries.
Authors: Jia, Miao1 (AUTHOR) jiamiao@btbu.edu.cn, Qi, Tong2 (AUTHOR) qitongwork@163.com, Yuan, Qiong2 (AUTHOR) 13716673969@163.com, Zhao, Peizhu2 (AUTHOR) zhaopzhjy@163.com, Jia, Mengqiu2 (AUTHOR) jiamiao@btbu.edu.cn
Source: Nanomaterials (2079-4991). Jun2022, Vol. 12 Issue 12, p2006-N.PAG. 12p.
Subjects: Sodium ions, Anodes, Molybdenum disulfide, Metal sulfides, Composite materials, Polypyrrole
Abstract: As a typical two-dimensional layered metal sulfide, MoS2 has a high theoretical capacity and large layer spacing, which is beneficial for ion transport. Herein, a facile polymerization method is employed to synthesize polypyrrole (PPy) nanotubes, followed by a hydrothermal method to obtain flower-rod-shaped MoS2/PPy (FR-MoS2/PPy) composites. The FR-MoS2/PPy achieves outstanding electrochemical performance as a sodium-ion battery anode. After 60 cycles under 100 mA g−1, the FR-MoS2/PPy can maintain a capacity of 431.9 mAh g−1. As for rate performance, when the current densities range from 0.1 to 2 A g−1, the capacities only reduce from 489.7 to 363.2 mAh g−1. The excellent performance comes from a high specific surface area provided by the unique structure and the synergistic effect between the components. Additionally, the introduction of conductive PPy improves the conductivity of the material and the internal hollow structure relieves the volume expansion. In addition, kinetic calculations show that the composite material has a high sodium-ion transmission rate, and the external pseudocapacitance behavior can also significantly improve its electrochemical performance. This method provides a new idea for the development of advanced high-capacity anode materials for sodium-ion batteries. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Polypyrrole Modified MoS 2 Nanorod Composites as Durable Pseudocapacitive Anode Materials for Sodium-Ion Batteries.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Jia%2C+Miao%22">Jia, Miao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jiamiao@btbu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qi%2C+Tong%22">Qi, Tong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> qitongwork@163.com</i><br /><searchLink fieldCode="AR" term="%22Yuan%2C+Qiong%22">Yuan, Qiong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> 13716673969@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Peizhu%22">Zhao, Peizhu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> zhaopzhjy@163.com</i><br /><searchLink fieldCode="AR" term="%22Jia%2C+Mengqiu%22">Jia, Mengqiu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jiamiao@btbu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Jun2022, Vol. 12 Issue 12, p2006-N.PAG. 12p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Sodium+ions%22">Sodium ions</searchLink><br /><searchLink fieldCode="DE" term="%22Anodes%22">Anodes</searchLink><br /><searchLink fieldCode="DE" term="%22Molybdenum+disulfide%22">Molybdenum disulfide</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+sulfides%22">Metal sulfides</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polypyrrole%22">Polypyrrole</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As a typical two-dimensional layered metal sulfide, MoS2 has a high theoretical capacity and large layer spacing, which is beneficial for ion transport. Herein, a facile polymerization method is employed to synthesize polypyrrole (PPy) nanotubes, followed by a hydrothermal method to obtain flower-rod-shaped MoS2/PPy (FR-MoS2/PPy) composites. The FR-MoS2/PPy achieves outstanding electrochemical performance as a sodium-ion battery anode. After 60 cycles under 100 mA g−1, the FR-MoS2/PPy can maintain a capacity of 431.9 mAh g−1. As for rate performance, when the current densities range from 0.1 to 2 A g−1, the capacities only reduce from 489.7 to 363.2 mAh g−1. The excellent performance comes from a high specific surface area provided by the unique structure and the synergistic effect between the components. Additionally, the introduction of conductive PPy improves the conductivity of the material and the internal hollow structure relieves the volume expansion. In addition, kinetic calculations show that the composite material has a high sodium-ion transmission rate, and the external pseudocapacitance behavior can also significantly improve its electrochemical performance. This method provides a new idea for the development of advanced high-capacity anode materials for sodium-ion batteries. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/nano12122006
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 2006
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      – SubjectFull: Sodium ions
        Type: general
      – SubjectFull: Anodes
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      – SubjectFull: Molybdenum disulfide
        Type: general
      – SubjectFull: Metal sulfides
        Type: general
      – SubjectFull: Composite materials
        Type: general
      – SubjectFull: Polypyrrole
        Type: general
    Titles:
      – TitleFull: Polypyrrole Modified MoS 2 Nanorod Composites as Durable Pseudocapacitive Anode Materials for Sodium-Ion Batteries.
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            NameFull: Jia, Miao
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            NameFull: Qi, Tong
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            NameFull: Yuan, Qiong
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            NameFull: Zhao, Peizhu
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              M: 06
              Text: Jun2022
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              Y: 2022
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