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Issue 31, 2018
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Pt catalyzed formation of a Ni@Pt/reduced graphene oxide nanocomposite: preparation and electrochemical sensing application for glucose detection

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Abstract

In this work, a Ni@Pt/rGO nanocomposite was prepared for the first time by a two-step reduction method. Firstly, monodisperse Pt/rGO was prepared by a solvothermal reduction of K2PtCl4 and graphene oxide in ethylene glycol. Then, a Pt-catalyzed reduction of nickel chloride proceeded in aqueous solution at a moderate temperature of 55 °C. The thus-obtained Ni@Pt/rGO nanocomposite was characterized by transmission electron microscopy, energy dispersive X-ray analysis, X-ray diffraction and X-ray photoelectron spectroscopy. For the high surface-to-volume ratio and high catalytic ability of transition metals and graphene, an electrochemical sensor was fabricated by casting the prepared Ni@Pt/rGO composite onto the surface of a glassy carbon electrode, and the sensing properties towards glucose were evaluated. The sensor showed good detection performance with a detection limit of 8 μM and a linear range of up to 10.008 mM.

Graphical abstract: Pt catalyzed formation of a Ni@Pt/reduced graphene oxide nanocomposite: preparation and electrochemical sensing application for glucose detection

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Publication details

The article was received on 05 Jun 2018, accepted on 10 Jul 2018 and first published on 12 Jul 2018


Article type: Paper
DOI: 10.1039/C8AY01275J
Citation: Anal. Methods, 2018,10, 3845-3850
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    Pt catalyzed formation of a Ni@Pt/reduced graphene oxide nanocomposite: preparation and electrochemical sensing application for glucose detection

    L. Ma, X. Wang, Q. Zhang, X. Tong, Y. Zhang and Z. Li, Anal. Methods, 2018, 10, 3845
    DOI: 10.1039/C8AY01275J

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