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Facile synthesis of bead-chain structured MWCNTs@CeO2 with oxygen vacancies-rich for promoting electrochemical energy storage.

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Title: Facile synthesis of bead-chain structured MWCNTs@CeO2 with oxygen vacancies-rich for promoting electrochemical energy storage.
Authors: Cao, Xiao-Man1 (AUTHOR), Chen, Jia-Qi1 (AUTHOR), Zhao, Xin-Rui1 (AUTHOR), Ge, Hao2 (AUTHOR), Liu, Daliang3 (AUTHOR), Wu, Qiong3 (AUTHOR), Sun, Zhi-Jia1 (AUTHOR) sunzhijia@bhu.edu.cn, Zhang, Qingguo1 (AUTHOR) zhangqingguo@bhu.edu.cn
Source: Chemical Engineering Journal. Jan2024, Vol. 479, pN.PAG-N.PAG. 1p.
Subjects: Energy storage, Carbon-based materials, Metallic oxides, Cerium oxides, Oxygen electrodes, Supercapacitor electrodes, Carbon nanotubes
Abstract: [Display omitted] • Bead-chain structured MWCNTs@CeO 2 is prepared by a controllable approach. • MWCNTs can be used without any covalent or non-covalent modification. • Unique structure and rich O-vacancies boost the electrochemical energy storage. The extraordinary properties of metal oxides (MOs) have led to their increasing recognition as a potential material for energy storage systems, along with exceptional performance enhancement. Given the inherently finite electronic conductivity exhibited by most metallic oxides, commonly employed strategies to overcome this limitation involve their integration with conducting carbon materials or the introduction of oxygen vacancies. Herein, bead-chain structured MWCNTs@CeO 2 with abundant oxygen vacancies (BC MWCNTs@Ov-CeO 2) was successfully synthesized by utilizing chain-like MWCNTs to string together bead-like CeO 2 nanoparticles, through a facile solvothermal approach. In particular, MWCNTs are neither covalently nor non-covalently modified, substantially simplifying fabrication procedures. The incorporation of carbon nanotubes and the abundance of oxygen vacancies effectively enhance charge storage dynamics, leading to significant improvements in conductivity and electrochemical properties beyond those previously reported CeO 2 -based composites. BC MWCNTs@Ov-CeO 2 exhibited an impressive specific capacitance of 421.1 F g−1 at 1 A/g, outperforming pure CeO 2 by 286%, demonstrating its superior capacitance performance. According to various theoretical and experimental investigations, it has been firmly established that the presence of conductive networks and oxygen vacancies significantly enhances the electrochemical properties of MOs. This research emphasizes the importance of understanding oxygen vacancies in electrode materials, providing a systematic approach for the development of future energy storage devices. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal is the property of Elsevier B.V. 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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An: 174792958
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  Label: Title
  Group: Ti
  Data: Facile synthesis of bead-chain structured MWCNTs@CeO2 with oxygen vacancies-rich for promoting electrochemical energy storage.
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  Data: <searchLink fieldCode="AR" term="%22Cao%2C+Xiao-Man%22">Cao, Xiao-Man</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Jia-Qi%22">Chen, Jia-Qi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Xin-Rui%22">Zhao, Xin-Rui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ge%2C+Hao%22">Ge, Hao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Daliang%22">Liu, Daliang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Qiong%22">Wu, Qiong</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Zhi-Jia%22">Sun, Zhi-Jia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sunzhijia@bhu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Qingguo%22">Zhang, Qingguo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhangqingguo@bhu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Jan2024, Vol. 479, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon-based+materials%22">Carbon-based materials</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+oxides%22">Metallic oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Cerium+oxides%22">Cerium oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+electrodes%22">Oxygen electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitor+electrodes%22">Supercapacitor electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink>
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  Label: Abstract
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  Data: [Display omitted] • Bead-chain structured MWCNTs@CeO 2 is prepared by a controllable approach. • MWCNTs can be used without any covalent or non-covalent modification. • Unique structure and rich O-vacancies boost the electrochemical energy storage. The extraordinary properties of metal oxides (MOs) have led to their increasing recognition as a potential material for energy storage systems, along with exceptional performance enhancement. Given the inherently finite electronic conductivity exhibited by most metallic oxides, commonly employed strategies to overcome this limitation involve their integration with conducting carbon materials or the introduction of oxygen vacancies. Herein, bead-chain structured MWCNTs@CeO 2 with abundant oxygen vacancies (BC MWCNTs@Ov-CeO 2) was successfully synthesized by utilizing chain-like MWCNTs to string together bead-like CeO 2 nanoparticles, through a facile solvothermal approach. In particular, MWCNTs are neither covalently nor non-covalently modified, substantially simplifying fabrication procedures. The incorporation of carbon nanotubes and the abundance of oxygen vacancies effectively enhance charge storage dynamics, leading to significant improvements in conductivity and electrochemical properties beyond those previously reported CeO 2 -based composites. BC MWCNTs@Ov-CeO 2 exhibited an impressive specific capacitance of 421.1 F g−1 at 1 A/g, outperforming pure CeO 2 by 286%, demonstrating its superior capacitance performance. According to various theoretical and experimental investigations, it has been firmly established that the presence of conductive networks and oxygen vacancies significantly enhances the electrochemical properties of MOs. This research emphasizes the importance of understanding oxygen vacancies in electrode materials, providing a systematic approach for the development of future energy storage devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Journal is the property of Elsevier B.V. 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.cej.2023.147663
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Energy storage
        Type: general
      – SubjectFull: Carbon-based materials
        Type: general
      – SubjectFull: Metallic oxides
        Type: general
      – SubjectFull: Cerium oxides
        Type: general
      – SubjectFull: Oxygen electrodes
        Type: general
      – SubjectFull: Supercapacitor electrodes
        Type: general
      – SubjectFull: Carbon nanotubes
        Type: general
    Titles:
      – TitleFull: Facile synthesis of bead-chain structured MWCNTs@CeO2 with oxygen vacancies-rich for promoting electrochemical energy storage.
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            NameFull: Cao, Xiao-Man
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            NameFull: Chen, Jia-Qi
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            NameFull: Zhao, Xin-Rui
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            NameFull: Ge, Hao
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            NameFull: Liu, Daliang
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            NameFull: Wu, Qiong
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            NameFull: Sun, Zhi-Jia
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            NameFull: Zhang, Qingguo
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            – D: 01
              M: 01
              Text: Jan2024
              Type: published
              Y: 2024
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