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Highly stable nanostructured membrane electrode assembly based on Pt/Nb2O5 nanobelts with reduced platinum loading for proton exchange membrane fuel cells

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Abstract

Proton exchange membrane fuel cells are promising candidates for the next-generation power sources; however, poor durability and high cost impede their widespread application. To address this dilemma, a nanostructured membrane electrode assembly (MEA) based on Pt/Nb2O5 nanobelts (NBs) was constructed through hydrothermal synthesis and the physical vapour deposition method. Pt/Nb2O5 NBs were directly aligned with Nafion membrane without ionomer as a binder. The prepared catalyst layer is ultrathin and has ultralow Pt loading. A single cell performance of 5.80 kW gPt−1 (cathode) and 12.03 kW gPt−1 (anode) was achieved by the Pt/Nb2O5 NBs-based MEA (66.0 μgPt cm−2). The accelerated durability test indicates that the Pt/Nb2O5 NBs-based MEA is far more stable than conventional Pt/C-based MEA.

Graphical abstract: Highly stable nanostructured membrane electrode assembly based on Pt/Nb2O5 nanobelts with reduced platinum loading for proton exchange membrane fuel cells

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Publication details

The article was received on 01 Mar 2017, accepted on 23 Apr 2017 and first published on 26 Apr 2017


Article type: Paper
DOI: 10.1039/C7NR01491K
Citation: Nanoscale, 2017, Advance Article
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    Highly stable nanostructured membrane electrode assembly based on Pt/Nb2O5 nanobelts with reduced platinum loading for proton exchange membrane fuel cells

    Y. Zeng, X. Guo, Z. Wang, J. Geng, H. Zhang, W. Song, H. Yu, Z. Shao and B. Yi, Nanoscale, 2017, Advance Article , DOI: 10.1039/C7NR01491K

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