Jump to main content
Jump to site search


Trimetallic palladium–copper–cobalt alloy wavy nanowires improve ethanol electrooxidation in alkaline medium

Author affiliations

Abstract

Recently, engineering high performance Pd-based nanocatalysts for alkaline ethanol fuel cells has attracted wide attention. Here, we report a one-pot synthesis of low-palladium ternary palladium–copper–cobalt (PdCuCo) alloy nanowires (NWs) with a diameter of ∼4.0 nm to improve the mass activity (MA) of ethanol electrooxidation in alkaline medium. The MA (7.45 A mg−1) of the Pd31Cu61Co8 NWs is 8.5-fold and 12.4-fold that of commercial Pd black and Pd/C, respectively. The reaction mechanism of the EOR and the reasons for the activity enhancement on Pd31Cu61Co8 NWs are elucidated based on the results of in situ Fourier transform infrared spectroscopy and structure characterization. Besides the electronic effect and surface defect sites, the coexistence of surface Cu and Co that have high capacities to activate water to produce reactive oxygen species is another key factor. This study shows an example of how to design low-palladium ternary PdCuCo NWs as improved anode electrocatalysts for alkaline direct ethanol fuel cells with high mass activity.

Graphical abstract: Trimetallic palladium–copper–cobalt alloy wavy nanowires improve ethanol electrooxidation in alkaline medium

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Jun 2019, accepted on 15 Aug 2019 and first published on 16 Aug 2019


Article type: Paper
DOI: 10.1039/C9NR05120A
Nanoscale, 2019, Advance Article

  •   Request permissions

    Trimetallic palladium–copper–cobalt alloy wavy nanowires improve ethanol electrooxidation in alkaline medium

    F. Zhao, C. Li, Q. Yuan, F. Yang, B. Luo, Z. Xie, X. Yang, Z. Zhou and X. Wang, Nanoscale, 2019, Advance Article , DOI: 10.1039/C9NR05120A

Search articles by author

Spotlight

Advertisements