Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Controlled One-pot Synthesis of Nickel Single Atoms Embedded in Carbon Nanotube and Graphene Supports with High Loading

    Access Status
    Open access via publisher
    Authors
    Zhao, Shiyong
    Wang, T.
    Zhou, G.
    Zhang, L.
    Lin, C.
    Veder, Jean-Pierre
    Johannessen, B.
    Saunders, M.
    Yin, L.
    Liu, C.
    De Marco, Roland
    Yang, S.Z.
    Zhang, Q.
    Jiang, San Ping
    Date
    2020
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhao, S. and Wang, T. and Zhou, G. and Zhang, L. and Lin, C. and Veder, J.P. and Johannessen, B. et al. 2020. Controlled One-pot Synthesis of Nickel Single Atoms Embedded in Carbon Nanotube and Graphene Supports with High Loading. ChemNanoMat. 6 (7): pp. 1063-1074.
    Source Title
    ChemNanoMat
    DOI
    10.1002/cnma.202000223
    Additional URLs
    https://onlinelibrary.wiley.com/doi/am-pdf/10.1002/cnma.202000223
    ISSN
    2199-692X
    Faculty
    Faculty of Science and Engineering
    School
    John de Laeter Centre (JdLC)
    WASM: Minerals, Energy and Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP180100568
    http://purl.org/au-research/grants/arc/DP180100731
    URI
    http://hdl.handle.net/20.500.11937/90803
    Collection
    • Curtin Research Publications
    Abstract

    Single-atom catalysts (SACs) have attracted much attentions due to the advantages of high catalysis efficiency and selectivity. However, the controllable and efficient synthesis of SACs remains a significant challenge. Herein, we report a controlled one-pot synthesis of nickel single atoms embedded on nitrogen-doped carbon nanotubes (NiSA−N−CNT) and nitrogen-doped graphene (NiSA−N−G). The formation of NiSA−N−CNT is due to the solid-to-solid rolling up mechanism during the high temperature pyrolysis at 800 °C from the stacked and layered Ni-doped g-C3N4, g-C3N4−Ni structure to a tubular CNT structure. Addition of citric acid introduces an amorphous carbon source on the layered g-C3N4−Ni and after annealing at the same temperature of 800 °C, instead of formation of NiSA−N−CNT, Ni single atoms embedded in planar graphene type supports, NiSA−N−G were obtained. The density functional theory (DFT) calculation indicates the introduction of amorphous carbon source substantially reduces the structure fluctuation or curvature of layered g-C3N4-Ni intermediate products, thus interrupting the solid-to-solid rolling process and leading to the formation of planar graphene type supports for Ni single atoms. The as-synthesized NiSA−N−G with Ni atomic loading of ∼6 wt% catalysts shows a better activity and stability for the CO2 reduction reaction (CO2RR) than NiSA−N−CNT with Ni atomic loading of ∼15 wt% due to the open and exposed Ni single atom active sites in NiSA−N−G. This study demonstrates for the first time the feasibility in the control of the microstructure of carbon supports in the synthesis of SACs.

    Related items

    Showing items related by title, author, creator and subject.

    • A Universal Seeding Strategy to Synthesize Single Atom Catalysts on 2D Materials for Electrocatalytic Applications
      Zhao, S.; Chen, G.; Zhou, G.; Yin, L.C.; Veder, Jean-Pierre ; Johannessen, B.; Saunders, M.; Yang, S.Z.; De Marco, Roland ; Liu, C.; Jiang, San Ping (2020)
      Single-atom catalysts (SACs) are attracting significant attention due to their exceptional catalytic performance and stability. However, the controllable, scalable, and efficient synthesis of SACs remains a significant ...
    • One-Pot Pyrolysis Method to Fabricate Carbon Nanotube Supported Ni Single-Atom Catalysts with Ultrahigh Loading
      Zhao, S.; Cheng, Yi ; Veder, Jean-Pierre ; Johannessen, B.; Saunders, M.; Zhang, L.; Liu, C.; Chisholm, M.F.; De Marco, Roland ; Liu, Jian ; Yang, S.Z.; Jiang, San Ping (2018)
      The practical application of single atom catalysts (SACs) is constrained by the low achievable loading of single metal atoms. Here, nickel SACs stabilized on a nitrogen-doped carbon nanotube structure (NiSA-N-CNT) with ...
    • Iron Single Atoms on Graphene as Nonprecious Metal Catalysts for High-Temperature Polymer Electrolyte Membrane Fuel Cells
      Cheng, Yi ; He, Shuai; Lu, S.; Veder, Jean-Pierre ; Johannessen, B.; Thomsen, L.; Saunders, M.; Becker, Thomas ; De Marco, Roland ; Li, Q.; Yang, S.Z.; Jiang, San Ping (2019)
      Iron single atom catalysts (Fe SACs) are the best-known nonprecious metal (NPM) catalysts for the oxygen reduction reaction (ORR) of polymer electrolyte membrane fuel cells (PEMFCs), but their practical application has ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.