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Hierarchical construction of hollow NiCo2S4 nanotube@NiCo2S4 nanosheet arrays on Ni foam as an efficient and durable electrocatalyst for hydrogen evolution reaction.

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Title: Hierarchical construction of hollow NiCo2S4 nanotube@NiCo2S4 nanosheet arrays on Ni foam as an efficient and durable electrocatalyst for hydrogen evolution reaction.
Authors: Bai, Lei1 (AUTHOR), Song, Ailing1 (AUTHOR) ailing.song@ysu.edu.cn, Lei, Xinyue1 (AUTHOR), Zhang, Tianhong1 (AUTHOR), Song, Shenglu1 (AUTHOR), Tian, Hao1,2 (AUTHOR) hao.tian@uts.edu.au, Liu, Hao1,2 (AUTHOR) hao.liu@uts.edu.au, Qin, Xiujuan1 (AUTHOR) qinxj@ysu.edu.cn, Wang, Guoxiu2 (AUTHOR), Shao, Guangjie1,3 (AUTHOR) shaoguangjie@ysu.edu.cn
Source: International Journal of Hydrogen Energy. Nov2022, Vol. 47 Issue 91, p38524-38532. 9p.
Subjects: Hydrogen evolution reactions, Transition metals, Ion exchange (Chemistry), Electronic structure, Nanotubes, Foam
Abstract: Ternary transition metal chalcogenide (TTMC) with multicomponent, different phases and unique electronic structures have been studied in electrocatalytic hydrogen evolution reaction (HER). However, the strong interaction between adsorbed H (H∗) and sulfur leads to the unfavorable hydrogen desorption properties of considerable TTMC. Herein, we constructed the hierarchical hollow NiCo 2 S 4 nanotube@NiCo 2 S 4 nanosheet arrays on Ni foam substrate (NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF) by ion-exchange method. Homogeneous anion diffusion facilitates the formation of regular ultrathin nanosheets on hollow NiCo 2 S 4 nanotube arrays, which presents hierarchical architecture with more surface area and channels to active site exposure, electrolyte diffusion, and gas desorption for HER. As-synthesized optimal NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF electrode demonstrates an excellent HER activity, especially an overpotential of 221 mV, a Tafel slope of 108 mV dec−1, and remarkable stability at current densities of 100 mA cm−2 in 1.0 M NaOH electrolyte. • Hierarchical hollow NT-NiCo 2 S 4 @NS-NiCo 2 S 4 arrays supported on nickel foam were synthesized by ion-exchange method. • Hierarchical structure assembled from TTMC can facilitate active sites accessibility and hydrogen desorption properties. • The optimized NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF-1.0 exhibited an overpotential of 221 mV at 100 mA/cm2 and persistent stability. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 160048027
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Hierarchical construction of hollow NiCo2S4 nanotube@NiCo2S4 nanosheet arrays on Ni foam as an efficient and durable electrocatalyst for hydrogen evolution reaction.
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  Data: <searchLink fieldCode="AR" term="%22Bai%2C+Lei%22">Bai, Lei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Ailing%22">Song, Ailing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ailing.song@ysu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Lei%2C+Xinyue%22">Lei, Xinyue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Tianhong%22">Zhang, Tianhong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Shenglu%22">Song, Shenglu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tian%2C+Hao%22">Tian, Hao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hao.tian@uts.edu.au</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Hao%22">Liu, Hao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hao.liu@uts.edu.au</i><br /><searchLink fieldCode="AR" term="%22Qin%2C+Xiujuan%22">Qin, Xiujuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> qinxj@ysu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Guoxiu%22">Wang, Guoxiu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shao%2C+Guangjie%22">Shao, Guangjie</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> shaoguangjie@ysu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Nov2022, Vol. 47 Issue 91, p38524-38532. 9p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydrogen+evolution+reactions%22">Hydrogen evolution reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+metals%22">Transition metals</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+exchange+%28Chemistry%29%22">Ion exchange (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+structure%22">Electronic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Nanotubes%22">Nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Foam%22">Foam</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Ternary transition metal chalcogenide (TTMC) with multicomponent, different phases and unique electronic structures have been studied in electrocatalytic hydrogen evolution reaction (HER). However, the strong interaction between adsorbed H (H∗) and sulfur leads to the unfavorable hydrogen desorption properties of considerable TTMC. Herein, we constructed the hierarchical hollow NiCo 2 S 4 nanotube@NiCo 2 S 4 nanosheet arrays on Ni foam substrate (NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF) by ion-exchange method. Homogeneous anion diffusion facilitates the formation of regular ultrathin nanosheets on hollow NiCo 2 S 4 nanotube arrays, which presents hierarchical architecture with more surface area and channels to active site exposure, electrolyte diffusion, and gas desorption for HER. As-synthesized optimal NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF electrode demonstrates an excellent HER activity, especially an overpotential of 221 mV, a Tafel slope of 108 mV dec−1, and remarkable stability at current densities of 100 mA cm−2 in 1.0 M NaOH electrolyte. • Hierarchical hollow NT-NiCo 2 S 4 @NS-NiCo 2 S 4 arrays supported on nickel foam were synthesized by ion-exchange method. • Hierarchical structure assembled from TTMC can facilitate active sites accessibility and hydrogen desorption properties. • The optimized NT-NiCo 2 S 4 @NS-NiCo 2 S 4 /NF-1.0 exhibited an overpotential of 221 mV at 100 mA/cm2 and persistent stability. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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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    Identifiers:
      – Type: doi
        Value: 10.1016/j.ijhydene.2022.09.020
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 38524
    Subjects:
      – SubjectFull: Hydrogen evolution reactions
        Type: general
      – SubjectFull: Transition metals
        Type: general
      – SubjectFull: Ion exchange (Chemistry)
        Type: general
      – SubjectFull: Electronic structure
        Type: general
      – SubjectFull: Nanotubes
        Type: general
      – SubjectFull: Foam
        Type: general
    Titles:
      – TitleFull: Hierarchical construction of hollow NiCo2S4 nanotube@NiCo2S4 nanosheet arrays on Ni foam as an efficient and durable electrocatalyst for hydrogen evolution reaction.
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            NameFull: Bai, Lei
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            NameFull: Song, Ailing
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            NameFull: Song, Shenglu
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              Text: Nov2022
              Type: published
              Y: 2022
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