AuPt Nanoparticles/ Multi-Walled carbon nanotubes catalyst as high active and stable oxygen reduction catalyst for Al-Air batteries

• DOI: 10.1016/j.apsusc.2021.150474
• Publication Date: 2021-06-27T04:55:43Z
• Authors: Zhihong Luo; Liankun Yin; Li Xiang; Terence Xiaoteng Liu; Zhou Song; Yibing Li; Li Zhou; Kun Luo; Kai Wu; Jianjie Jiang
• Keywords: Carbon fibers

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 metal loading 10.2 wt% (Au:4.1 wt%, Pt:6.1 wt%) exhibited a superior ORR catalytic activity and competitive durability 20 Pt/C catalyst. When applied as battery, appropriate increasing Au encourage better performance. Au1.68Pt/MWNTs 8.95 little 5.3 Pt content exhibit larger specific capacity (921 mAh g−1) power density (146.8 mW cm−2) well than when it is assembled in battery.