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  • Rational design of sustainable transition metal-based bifunctional electrocatalysts for oxygen reduction and evolution reactions

    Author(s)
    Tian, Yuhui
    Xu, Li
    Qiu, Jingxia
    Liu, Xianhu
    Zhang, Shanqing
    Griffith University Author(s)
    Tian, Yuhui
    Qiu, Jingxia
    Zhang, Shanqing
    Xu, Lily
    Year published
    2020
    Metadata
    Show full item record
    Abstract
    Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two critical processes for metal-air batteries (MABs) that afford large energy capacity and high power density. However, both reactions suffer from sluggish kinetics. The availability of efficient electrocatalysts that could conquer activation energy barriers and accelerate reaction rates is crucial to tackling this issue. The noble metal-based electrocatalysts (e.g., Pt/C and Ru/IrO2) cannot meet the requirement for large-scale applications due to their scarce abundance, high cost, and insufficient stability. Transition metal-based materials can be a ...
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    Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two critical processes for metal-air batteries (MABs) that afford large energy capacity and high power density. However, both reactions suffer from sluggish kinetics. The availability of efficient electrocatalysts that could conquer activation energy barriers and accelerate reaction rates is crucial to tackling this issue. The noble metal-based electrocatalysts (e.g., Pt/C and Ru/IrO2) cannot meet the requirement for large-scale applications due to their scarce abundance, high cost, and insufficient stability. Transition metal-based materials can be a sustainable and promising candidate to replace the noble metal-based electrocatalysts for this purpose. This review intends to review the most recent, high performance, and sustainable strategies on tuning the catalytic activity of the transition metal-based materials toward ORR and OER. We also propose perspectives on remaining challenges and future research directions of transition metal-based bifunctional electrocatalysts toward practical applications. These fundamental design principles and strategies are crucial to guide and accelerate the design of the ideal catalysts and make possible the practical applications of MABs.
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    Journal Title
    Sustainable Materials and Technologies
    Volume
    25
    DOI
    https://doi.org/10.1016/j.susmat.2020.e00204
    Subject
    Environmental Sciences
    Science & Technology
    Green & Sustainable Science & Technology
    Energy & Fuels
    Materials Science, Multidisciplinary
    Publication URI
    http://hdl.handle.net/10072/400419
    Collection
    • Journal articles

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