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Issue 11, 2020
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Etching high-Fe-content PtPdFe nanoparticles as efficient catalysts towards glycerol electrooxidation

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Abstract

Recently, great effort has been made to improve the activity and stability, as well as increase the utilization efficiency of noble metal-based electrocatalysts. Herein, a dealloyed PtPd-based nanoparticle (PtPd-x/C, x = 0, 2, 4, 6, 8, 10), with a small amount of Fe inside, is obtained by etching a high-Fe-content PtPdFe nanoparticle precursor. The final PtPd-x/C having a large amount of PtPd exposed on the surface can effectively increase the utilization efficiency of the mass-based unit precious-metal to facilitate glycerol electrooxidation. Attractively, the optimal PtPd-6/C not only exhibits higher electrochemically active surface area (113.33 cm2 mgPtPd−1), oxidation peak current (0.86 A mgPtPd−1) and stability (0.48 A mgPtPd−1 after 3000 s and 5.8% current decreases after 400 cycles), but also shows excellent CO tolerance compared to others. This work demonstrates that the design of a multi-component noble metal composite is a feasible way to obtain some efficient electrocatalysts.

Graphical abstract: Etching high-Fe-content PtPdFe nanoparticles as efficient catalysts towards glycerol electrooxidation

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Supplementary files

Article information


Submitted
19 Dec 2019
Accepted
11 Feb 2020
First published
11 Feb 2020

New J. Chem., 2020,44, 4604-4612
Article type
Paper

Etching high-Fe-content PtPdFe nanoparticles as efficient catalysts towards glycerol electrooxidation

J. Zhao, W. Jing, T. Tan, X. Liu, Y. Kang and W. Wang, New J. Chem., 2020, 44, 4604
DOI: 10.1039/C9NJ06259A

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