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Issue 28, 2017
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A novel cathode architecture using Cu nanoneedle arrays as the cathode support for AAEMFC application

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Abstract

A novel cathode architecture using vertically aligned Cu nanoneedle arrays (NNAs) as an ordered support for alkaline anion-exchange membrane fuel cell (AAEMFC) application is developed. Cu NNAs are directly grown on a GDL via three steps of electrochemical reaction. After depositing a Pd layer on the surface of Cu by a pulse electrodeposition method to form Pd/CuNNAs, the cathode catalyst layer is formed. The AAEMFC prepared without alkaline ionomer in the cathode catalyst layer shows an enhanced performance with ultra-low Pd loading down to 47 μg cm−2, which is much higher than that of a conventional cathode electrode with the Pt loading of 100 μg cm−2. This is the first report where three-dimensional Cu NNAs are applied as the cathode support in an AAEMFC, which is able to deliver a higher power density without an alkaline ionomer than conventional MEAs.

Graphical abstract: A novel cathode architecture using Cu nanoneedle arrays as the cathode support for AAEMFC application

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Publication details

The article was received on 20 Mar 2017, accepted on 14 Jun 2017 and first published on 15 Jun 2017


Article type: Paper
DOI: 10.1039/C7TA02437A
Citation: J. Mater. Chem. A, 2017,5, 14794-14800
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    A novel cathode architecture using Cu nanoneedle arrays as the cathode support for AAEMFC application

    J. Jia, H. Yu, X. Gao, J. Chi, B. Qin, W. Song, Z. Shao and B. Yi, J. Mater. Chem. A, 2017, 5, 14794
    DOI: 10.1039/C7TA02437A

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