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

    SrCo0.9Ti0.1O3−δ As a New Electrocatalyst for the Oxygen Evolution Reaction in Alkaline Electrolyte with Stable Performance

    Access Status
    Fulltext not available
    Authors
    Su, C.
    Wang, W.
    Chen, Y.
    Yang, G.
    Xu, X.
    Tadé, M.
    Shao, Zongping
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Su, C. and Wang, W. and Chen, Y. and Yang, G. and Xu, X. and Tadé, M. and Shao, Z. 2015. SrCo0.9Ti0.1O3−δ As a New Electrocatalyst for the Oxygen Evolution Reaction in Alkaline Electrolyte with Stable Performance. ACS Applied Materials and Interfaces. 7 (32): pp. 17663-17670.
    Source Title
    ACS Applied Materials and Interfaces
    DOI
    10.1021/acsami.5b02810
    ISSN
    1944-8244
    School
    Department of Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP150104365
    URI
    http://hdl.handle.net/20.500.11937/30318
    Collection
    • Curtin Research Publications
    Abstract

    The development of efficient, inexpensive, and stable electrocatalysts for the oxygen evolution reaction (OER) is critical for many electrochemical energy conversion technologies. The prohibitive price and insufficient stability of the state-of-the-art IrO2 electrocatalyst for the OER inhibits its use in practical devices. Here, SrM0.9Ti0.1O3−δ (M = Co, Fe) perovskites with different B-site transition metal elements were investigated as potentially cheaper OER electrocatalysts. They were prepared through a typical sol–gel route, and their catalytic activities for the OER in alkaline medium were comparatively studied using rotating disk electrodes. Both materials show high initial intrinsic activities in alkaline electrolyte for the OER, comparable to the benchmark perovskite-type electrocatalyst Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF), but SrCo0.9Ti0.1O3−δ (SCT) possessed more operational stability than SrFe0.9Ti0.1O3−δ (SFT), even better than BSCF and IrO2 catalysts. Based on the X-ray photoelectron spectra analysis of the oxidation states of the surface Co/Fe in both SFT and SCT before and after the OER tests, an explanation for their different operational stabilities was proposed by adopting a reported activity descriptor correlated to the eg occupancy of the 3d electron of the surface transition metal cations in the perovskite oxides. The above results indicate that SCT is a promising alternative electrocatalyst for the OER and can be used in electrochemical devices for water oxidation.

    Related items

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

    • 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 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 ...
    • 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.