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Enhancing the Interaction Between Pd Thin Films and Hydrogen via Atomic Stepped Interface Structures.

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Title: Enhancing the Interaction Between Pd Thin Films and Hydrogen via Atomic Stepped Interface Structures.
Authors: Liang, Yanxia1 (AUTHOR), Hou, Linghui1,2 (AUTHOR), Ma, Xinhua1 (AUTHOR), Liu, Dahai1,2 (AUTHOR), Zhao, Hui1 (AUTHOR), Shi, Tong2 (AUTHOR), Fan, Yong2 (AUTHOR) yfan1@hrbeu.edu.cn, Xiao, Wuyun1 (AUTHOR) xiaowuyun@sklnbcpc.cn
Source: Materials (1996-1944). Feb2026, Vol. 19 Issue 3, p596. 17p.
Subjects: Hydrogen absorption & adsorption, Surface structure, Magnetron sputtering, Nanostructured materials, Nanocrystals, Sputter deposition, Thin films, Surface diffusion
Abstract: Highly active interfaces are crucial to the hydrogen adsorption performance of nanomaterials. However, it remains challenging to conveniently and efficiently regulate atomic stacking characteristics. Here, we present a straightforward yet effective strategy for generating a high density of stepped atoms at the surface of thin films by controlling the migration behavior of sputtered atoms during deposition. Tuning sputtering power and substrate temperature yields wide-scale stepped interface structures, thus generating irregular conical columnar nanocrystals. Benefiting from the active and stable stepped atoms at the zigzag interface, the samples exhibit an excellent threshold pressure at 200 °C and a hydrogen adsorption of 110.06 cm3/g at 6 MPa, which is 2.2 times higher than that of conventional Pd thin films. Based on the control of nucleation and crystal growth during magnetron sputtering deposition, this method provides appropriate energy for surface atomic migration on columnar crystals, achieving high-density stepped interface structures. It can be readily extended to other substrates and noble metal systems, thus offering a novel strategy and guidance for the design of efficient and cost-effective hydrogen-interactive materials. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) 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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DbLabel: Engineering Source
An: 191586823
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PubTypeId: academicJournal
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  Data: Enhancing the Interaction Between Pd Thin Films and Hydrogen via Atomic Stepped Interface Structures.
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  Data: <searchLink fieldCode="AR" term="%22Liang%2C+Yanxia%22">Liang, Yanxia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hou%2C+Linghui%22">Hou, Linghui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Xinhua%22">Ma, Xinhua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Dahai%22">Liu, Dahai</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Hui%22">Zhao, Hui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Tong%22">Shi, Tong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fan%2C+Yong%22">Fan, Yong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> yfan1@hrbeu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xiao%2C+Wuyun%22">Xiao, Wuyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xiaowuyun@sklnbcpc.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Feb2026, Vol. 19 Issue 3, p596. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Hydrogen+absorption+%26+adsorption%22">Hydrogen absorption & adsorption</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+structure%22">Surface structure</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetron+sputtering%22">Magnetron sputtering</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Sputter+deposition%22">Sputter deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+diffusion%22">Surface diffusion</searchLink>
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  Data: Highly active interfaces are crucial to the hydrogen adsorption performance of nanomaterials. However, it remains challenging to conveniently and efficiently regulate atomic stacking characteristics. Here, we present a straightforward yet effective strategy for generating a high density of stepped atoms at the surface of thin films by controlling the migration behavior of sputtered atoms during deposition. Tuning sputtering power and substrate temperature yields wide-scale stepped interface structures, thus generating irregular conical columnar nanocrystals. Benefiting from the active and stable stepped atoms at the zigzag interface, the samples exhibit an excellent threshold pressure at 200 °C and a hydrogen adsorption of 110.06 cm3/g at 6 MPa, which is 2.2 times higher than that of conventional Pd thin films. Based on the control of nucleation and crystal growth during magnetron sputtering deposition, this method provides appropriate energy for surface atomic migration on columnar crystals, achieving high-density stepped interface structures. It can be readily extended to other substrates and noble metal systems, thus offering a novel strategy and guidance for the design of efficient and cost-effective hydrogen-interactive materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) 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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    Identifiers:
      – Type: doi
        Value: 10.3390/ma19030596
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 596
    Subjects:
      – SubjectFull: Hydrogen absorption & adsorption
        Type: general
      – SubjectFull: Surface structure
        Type: general
      – SubjectFull: Magnetron sputtering
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Sputter deposition
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Surface diffusion
        Type: general
    Titles:
      – TitleFull: Enhancing the Interaction Between Pd Thin Films and Hydrogen via Atomic Stepped Interface Structures.
        Type: main
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          Name:
            NameFull: Liang, Yanxia
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            NameFull: Hou, Linghui
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            NameFull: Ma, Xinhua
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            NameFull: Liu, Dahai
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19961944
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              Value: 19
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              Value: 3
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            – TitleFull: Materials (1996-1944)
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