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Hierarchical Concave Layered Triangular PtCu Alloy Nanostructures: Rational Integration of Dendritic Nanostructures for Efficient Formic Acid Electrooxidation

Abstract

The rational construction of multi-dimensional layered noble metal nanostructures is a great challenge since noble metals are not layer-structured materials. Herein, we reports a one-pot hydrothermal synthetic method for PtCu hierarchical concave layered triangular (HCLT) nanostructures using DL-carnitine, KI, poly(vinylpyrrolidone), CuCl2, and H2PtCl6. The PtCu HCLT nanostructure is comprised of multilayered triangular dendrites. Its layer number is tunable by changing DL-carnitine concentrations, and the concavity/convexity of the PtCu triangle nanostructures is tunable by changing the H2PtCl6/CuCl2 ratio or KI concentrations. Hierarchical trigonal bipyramid nanoframes are also obtained under certain conditions. Because of its advantageous nanostructures and bimetallic synergetic effect, the obtained PtCu HCLT nanostructure exhibits enhanced electrocatalytic activity and prolonged stability to formic acid oxidation compared to commercial Pt black, Pd/C and some other nanostructures.

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Publication details

The article was received on 10 Feb 2018, accepted on 10 Apr 2018 and first published on 11 Apr 2018


Article type: Paper
DOI: 10.1039/C8NR00385H
Citation: Nanoscale, 2018, Accepted Manuscript
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    Hierarchical Concave Layered Triangular PtCu Alloy Nanostructures: Rational Integration of Dendritic Nanostructures for Efficient Formic Acid Electrooxidation

    F. Wu, J. Lai, L. zhang, W. NIU, B. Lou, R. Luque and G. Xu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR00385H

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