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From mixed to three-layer core/shell PtCu nanoparticles: Ligand-induced surface segregation to enhance electrocatalytic activity

Abstract

Core-shell segregated bimetallic nanoparticles (NPs) exhibit increased enhanced catalytic performance compared to that of mixed bimetallic NPs. Here, we report a simple, yet efficient, one-pot synthetic strategy to synthesize uniform three-layer core/shell PtCu NPs by adding benzyl ether (BE) in the synthesis process of mixed PtCu NPs. In comparison with the commercial Pt/C and also mixed PtCu NPs, the three-layer core/shell PtCu NPs exhibit superior activity in catalyzing oxygen reduction reaction (ORR), formic acid oxidation reaction (FAOR), methanol oxidation reaction (MOR), and ethanol oxidation reaction (EOR), mainly due to the ligand (BE)-induced surface segregation of Pt on the surface of the NP.

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Publication details

The article was received on 03 May 2017, accepted on 08 Jun 2017 and first published on 09 Jun 2017


Article type: Communication
DOI: 10.1039/C7NR03123H
Citation: Nanoscale, 2017, Accepted Manuscript
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    From mixed to three-layer core/shell PtCu nanoparticles: Ligand-induced surface segregation to enhance electrocatalytic activity

    C. Dai, Y. Yang, Z. Zhao, A. C. Fisher, Z. Liu and D. Cheng, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR03123H

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