AuPt Nanoparticles/ Multi-Walled Carbon Nanotubes Catalyst as High Active and Stable Oxygen Reduction Catalyst for Al-Air Batteries

Zhihong Luo, Liankun Yin, Terence Xiaoteng Liu*, Zhou Song, Yibing Li, Li Zhou, Kun Luo*, Kai Wu, Jianjie Jiang

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

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    Abstract

    A series of AuPt nanoparticles supported on multi-walled carbon nanotubes (AuxPt/MWNTs) catalysts with ultrafine distribution (d ≈ 3.0 nm) were synthesized for Al-air battery cathode to enhance the oxygen reduction reaction. Among them, Au0.67Pt/MWNTs catalyst with metal loading of 10.2wt.% (Au:4.1wt.%, Pt:6.1wt.%) exhibited a superior ORR catalytic activity and competitive durability to 20wt.% Pt/C catalyst. When applied as Al-air battery, appropriate increasing Au loading encourage better battery performance. Au1.68Pt/MWNTs with 8.95wt.% of Au and as little as 5.3 wt.% Pt content exhibit larger specific capacity (921 mAh g-1) and power density (146.8 mW cm-2) as well as better durability than 20 wt.% Pt/C catalyst when it is assembled as cathode in Al-air battery.
    Original languageEnglish
    Article number150474
    Number of pages9
    JournalApplied Surface Science
    Volume564
    Early online date27 Jun 2021
    DOIs
    Publication statusPublished - 30 Oct 2021

    Keywords

    • AuPt nanoparticle
    • catalytic activity
    • durability
    • oxygen reduction reaction
    • Al-air battery

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