One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol

One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol

In this work, monodispersed core–shell AuPt@Au nanocrystals supported on reduced graphene oxide (AuPt@Au NCs/rGO) were fabricated by a one-step wet-chemical approach using melamine as a structure-director and stabilizing agent. Transmission electron microscopy (TEM), high-angle annular dark-field sc...

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Veröffentlicht in:RSC advances 2015-01, Vol.5 (116), p.96028-96033
Hauptverfasser: Liu, Qi, Xu, Yan-Ru, Wang, Ai-Jun, Feng, Jiu-Ju
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creator Liu, Qi
Xu, Yan-Ru
Wang, Ai-Jun
Feng, Jiu-Ju
description In this work, monodispersed core–shell AuPt@Au nanocrystals supported on reduced graphene oxide (AuPt@Au NCs/rGO) were fabricated by a one-step wet-chemical approach using melamine as a structure-director and stabilizing agent. Transmission electron microscopy (TEM), high-angle annular dark-field scanning TEM (HAADF-STEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were employed to examine their structure and morphology. The as-synthesized nanocomposites displayed better catalytic activity for p -nitrophenol reduction and improved reusability as compared with monometallic Au/rGO, Pt/rGO and commercial Pt/C catalysts.
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title One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol
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