View in EDS

Enhanced dehydrogenation kinetics of LiBH4 catalyzed by Ti/V/Li3BO3 hetero-ensembles derived from Ti2VC2 MXene.

Saved in:
Bibliographic Details
Title: Enhanced dehydrogenation kinetics of LiBH4 catalyzed by Ti/V/Li3BO3 hetero-ensembles derived from Ti2VC2 MXene.
Authors: Chen, Jinting1,2 (AUTHOR), Wang, Lei1,2 (AUTHOR), Yao, Ming1,2 (AUTHOR), Pan, Yue1,2 (AUTHOR), Zhang, Zeyu1,2 (AUTHOR), Li, Yawei1,2 (AUTHOR), Huang, Haixiang1,2 (AUTHOR), Liu, Bogu1,2 (AUTHOR), Yuan, Jianguang2 (AUTHOR), Zhang, Bao2 (AUTHOR), Wu, Ying1,2 (AUTHOR) wuying@ncepu.edu.cn
Source: Journal of Alloys & Compounds. Apr2026, Vol. 1062, pN.PAG-N.PAG. 1p.
Subjects: Dehydrogenation kinetics, Lithium borohydride, Activation energy, Heterogeneous catalysis, Hydrogen storage, Heterogeneous catalysts, Dehydrogenation
Abstract: To address the sluggish dehydrogenation kinetics and high operating temperatures of LiBH 4 , Ti 2 VC 2 MXene was incorporated with LiBH 4 to modify its dehydrogenation performance. With 40 wt% Ti 2 VC 2 MXene additive, the onset dehydrogenation temperature of LiBH 4 is reduced to 98.31 °C, while the peak hydrogen release occurs at 332.86 °C. Isothermal dehydrogenation measurements demonstrate that the composite rapidly desorbs 9.50 wt% H 2 within 40 min at 325 °C, 10.67 times faster than that of LiBH 4. Furthermore, the addition of 40 wt% Ti 2 VC 2 MXene effectively lowers the activation energies for the dehydrogenation to 104.76 and 112.99 kJ mol⁻1, respectively. Mechanism studies reveal that the enhanced dehydrogenation performance originates from the in-situ formation of catalytic active species, including Ti0, V0 and Li 3 BO 3 , promoting the cleavage of ionic and covalent bonds in LiBH 4. Simultaneously, the multiphase Ti/V/Li 3 BO 3 hetero-ensembles create abundant interfacial boundaries, serving as efficient pathways for hydrogen diffusion and accelerating the dehydrogenation kinetics. [Display omitted] • Addition of Ti 2 VC 2 lowers onset and peak desorption temperatures of LiBH 4 by 166.99 and 84.44 °C, respectively. • The LiBH 4 -40Ti 2 VC 2 releases 9.50 wt% H 2 at 325 °C within 40 min, about 10.67 times higher than that of LiBH 4. • The in-situ formed Ti/V/Li 3 BO 3 hetero-ensembles construct abundant interfaces, boosting the hydrogen release rate. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds 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.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 192766233
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Enhanced dehydrogenation kinetics of LiBH4 catalyzed by Ti/V/Li3BO3 hetero-ensembles derived from Ti2VC2 MXene.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Jinting%22">Chen, Jinting</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Lei%22">Wang, Lei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yao%2C+Ming%22">Yao, Ming</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Yue%22">Pan, Yue</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zeyu%22">Zhang, Zeyu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yawei%22">Li, Yawei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Haixiang%22">Huang, Haixiang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Bogu%22">Liu, Bogu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yuan%2C+Jianguang%22">Yuan, Jianguang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Bao%22">Zhang, Bao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Ying%22">Wu, Ying</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wuying@ncepu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Apr2026, Vol. 1062, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Dehydrogenation+kinetics%22">Dehydrogenation kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium+borohydride%22">Lithium borohydride</searchLink><br /><searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink><br /><searchLink fieldCode="DE" term="%22Heterogeneous+catalysis%22">Heterogeneous catalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+storage%22">Hydrogen storage</searchLink><br /><searchLink fieldCode="DE" term="%22Heterogeneous+catalysts%22">Heterogeneous catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Dehydrogenation%22">Dehydrogenation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To address the sluggish dehydrogenation kinetics and high operating temperatures of LiBH 4 , Ti 2 VC 2 MXene was incorporated with LiBH 4 to modify its dehydrogenation performance. With 40 wt% Ti 2 VC 2 MXene additive, the onset dehydrogenation temperature of LiBH 4 is reduced to 98.31 °C, while the peak hydrogen release occurs at 332.86 °C. Isothermal dehydrogenation measurements demonstrate that the composite rapidly desorbs 9.50 wt% H 2 within 40 min at 325 °C, 10.67 times faster than that of LiBH 4. Furthermore, the addition of 40 wt% Ti 2 VC 2 MXene effectively lowers the activation energies for the dehydrogenation to 104.76 and 112.99 kJ mol⁻1, respectively. Mechanism studies reveal that the enhanced dehydrogenation performance originates from the in-situ formation of catalytic active species, including Ti0, V0 and Li 3 BO 3 , promoting the cleavage of ionic and covalent bonds in LiBH 4. Simultaneously, the multiphase Ti/V/Li 3 BO 3 hetero-ensembles create abundant interfacial boundaries, serving as efficient pathways for hydrogen diffusion and accelerating the dehydrogenation kinetics. [Display omitted] • Addition of Ti 2 VC 2 lowers onset and peak desorption temperatures of LiBH 4 by 166.99 and 84.44 °C, respectively. • The LiBH 4 -40Ti 2 VC 2 releases 9.50 wt% H 2 at 325 °C within 40 min, about 10.67 times higher than that of LiBH 4. • The in-situ formed Ti/V/Li 3 BO 3 hetero-ensembles construct abundant interfaces, boosting the hydrogen release rate. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192766233
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2026.187624
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Dehydrogenation kinetics
        Type: general
      – SubjectFull: Lithium borohydride
        Type: general
      – SubjectFull: Activation energy
        Type: general
      – SubjectFull: Heterogeneous catalysis
        Type: general
      – SubjectFull: Hydrogen storage
        Type: general
      – SubjectFull: Heterogeneous catalysts
        Type: general
      – SubjectFull: Dehydrogenation
        Type: general
    Titles:
      – TitleFull: Enhanced dehydrogenation kinetics of LiBH4 catalyzed by Ti/V/Li3BO3 hetero-ensembles derived from Ti2VC2 MXene.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Chen, Jinting
      – PersonEntity:
          Name:
            NameFull: Wang, Lei
      – PersonEntity:
          Name:
            NameFull: Yao, Ming
      – PersonEntity:
          Name:
            NameFull: Pan, Yue
      – PersonEntity:
          Name:
            NameFull: Zhang, Zeyu
      – PersonEntity:
          Name:
            NameFull: Li, Yawei
      – PersonEntity:
          Name:
            NameFull: Huang, Haixiang
      – PersonEntity:
          Name:
            NameFull: Liu, Bogu
      – PersonEntity:
          Name:
            NameFull: Yuan, Jianguang
      – PersonEntity:
          Name:
            NameFull: Zhang, Bao
      – PersonEntity:
          Name:
            NameFull: Wu, Ying
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 10
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 09258388
          Numbering:
            – Type: volume
              Value: 1062
          Titles:
            – TitleFull: Journal of Alloys & Compounds
              Type: main
ResultId 1