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A Novel Cathode Architecture Using Cu Nanoneedle Arrays as Cathode Support for AAEMFC Application

Abstract

A novel cathode architecture using vertically aligned Cu nanoneedle arrays (NNAs) as ordered support for alkaline anion-exchange membrane fuel cells (AAEMFCs) 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 pulse electrodeposition method to form Pd/CuNNAs, the cathode catalyst layer is formed. Without alkaline ionomer in the cathode catalyst layer and the AAEMFC with the prepared cathode catalyst layer shows an enhanced performance with ultra-low Pd loading down to 47 μg cm−2, which is much higher than the conventional cathode electrode with the Pt loading of 100 μg cm−2. This is the first report that three-dimensional Cu NNAs is applied as the cathode support in AAEMFC, which is able to deliver higher power density without alkaline ionomer than the conventional MEA.

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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, Accepted Manuscript
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    A Novel Cathode Architecture Using Cu Nanoneedle Arrays as Cathode Support for AAEMFC Application

    J. Jia, H. Yu, X. Gao, C. Jun, B. Qin, W. Song, Z. Shao and B. Yi, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA02437A

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