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

    Perovskite oxide/carbon nanotube hybrid bifunctional electrocatalysts for overall water splitting

    Access Status
    Fulltext not available
    Authors
    Wu, X.
    Yu, J.
    Yang, G.
    Liu, H.
    Zhou, W.
    Shao, Zongping
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wu, X. and Yu, J. and Yang, G. and Liu, H. and Zhou, W. and Shao, Z. 2018. Perovskite oxide/carbon nanotube hybrid bifunctional electrocatalysts for overall water splitting. Electrochimica Acta. 286: pp. 47-54.
    Source Title
    Electrochimica Acta
    DOI
    10.1016/j.electacta.2018.08.010
    ISSN
    0013-4686
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/72696
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 Elsevier Ltd Perovskite oxides recently have emerged as efficient electrocatalysts for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in an alkaline solution. However, most perovskites have poor electrical conductivity at room temperature. Here, to simultaneously enhance the activity and stability towards both OER and HER, we in situ-introduce carbon nanotubes (CNTs) on the perovskite (SrTi0.1Fe0.85Ni0.05O3–d) surface via a simple chemical vapor deposition (CVD) method. First, we evaluate the influence of the CVD temperature on the growth of the CNTs. The optimized electrocatalyst obtained at a temperature of 700 °C (denoted as STFN/CNT-700) exhibits higher OER and HER activities than the bare perovskite, which is reflected by the current density, onset potential, overpotential and Tafel slope, and thus we construct a homemade electrolyzer for overall water splitting using STFN/CNT-700 as both an anode and cathode in alkaline electrolyte. Lastly, the increased performances are mainly attributed to the improved charge transfer process, increased surface area, and synergistic effect between the perovskite phase and the CNTs phase. This work may be inspiring to adjust the performance of metal oxides and prepare highly efficient and low-cost composite electrocatalysts.

    Related items

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

    • A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media
      Wang, C.; Cheng, Y.; Ianni, E.; Jiang, San Ping; Lin, B. (2017)
      Owing to the slow kinetics of oxygen evolution reaction (OER), developing highly active and stable OER catalysts is of great importance to realize the industrial operation for water electrolysis, reversible fuel cells and ...
    • Multi-active sites derived from a single/double perovskite hybrid for highly efficient water oxidation
      Sun, H.; He, J.; Hu, Z.; Chen, C.; Zhou, W.; Shao, Zongping (2019)
      The oxygen evolution reaction (OER) plays a crucial role in the application of water splitting, which is a highly competitive option for a sustainable energy future. Thus, it is vital to design highly active and durable ...
    • A Complete Review of Cobalt-based Electrocatalysts Applying to Metal-Air Batteries and Intermediate-Low Temperature Solid Oxide Fuel Cells
      Zhou, W.; Wang, X.; Zhu, Y.; Dai, J.; Zhu, Y.; Shao, Zongping (2018)
      © 2018, Materials Review Magazine. All right reserved. The over-exploitation and over-utilization of fossil fuel resources such as petroleum and coal has aggravated energy and environment problem in the 21st century, and ...
    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.