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    Advances in power generation from ammonia via electrocatalytic oxidation in direct ammonia fuel cells

    Access Status
    Fulltext not available
    Authors
    Shi, H.
    Tang, Jiayi
    Yu, Wenqing
    Tadé, Moses O.
    Shao, Zongping
    Date
    2024
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Shi, H. and Tang, J. and Yu, W. and Tadé, M.O. and Shao, Z. 2024. Advances in power generation from ammonia via electrocatalytic oxidation in direct ammonia fuel cells. Chemical Engineering Journal. 488: 150896.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2024.150896
    ISSN
    1385-8947
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP200103315
    http://purl.org/au-research/grants/arc/DP200103332
    http://purl.org/au-research/grants/arc/DP230100685
    URI
    http://hdl.handle.net/20.500.11937/96648
    Collection
    • Curtin Research Publications
    Abstract

    To achieve the global carbon neutrality goal proposed by the United Nations, seeking alternative affordable energy sources and efficient energy conversion ways has become extensive concerns. The varied applications of hydrogen energy are greatly valued for the past decades, as it releases less greenhouse gas emissions compared to traditional fossil fuels. However, large-scale hydrogen utilization is primarily limited by its storage and long-distance transportation challenges. In recent years, ammonia has been considered as an ideal alternative to hydrogen because as a good carbon-free energy carrier it shows high hydrogen content, high energy density, and easy storage and transportation. In this case, direct ammonia fuel cells (DAFCs) have received considerable attention. Ammonia oxidation reaction (AOR) over the anode exhibits a complex mechanism and slower kinetics under the lower operation temperatures compared to the hydrogen oxidation reaction (HOR) in the fuel cells. Hence, this review provides an in-time summary of the recent understanding of electrochemical AOR mechanisms and the progress in electrocatalysts design for various types of DAFCs operating from room to elevated operation temperatures. Additionally, the performance optimization of DAFCs and the existing challenges for achieving high AOR activity and selectivity in practical fuel cells are thoroughly discussed.

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