کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
39879 | 45838 | 2014 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A one-step method for preparation of Cu@Cu2O nanoparticles on reduced graphene oxide and their catalytic activities in N-arylation of N-heterocycles A one-step method for preparation of Cu@Cu2O nanoparticles on reduced graphene oxide and their catalytic activities in N-arylation of N-heterocycles](/preview/png/39879.png)
• Core–shell Cu@Cu2O nanoparticles on reduced graphene oxide (Cu@Cu2O NPs–RGO).
• Ligand free N-arylation of N-heterocycles under aerobic condition.
• N-arylation of N-heterocycles in short reaction time.
• EDS, FT-IR, Raman, SEM, TEM, XRD, and XPS characterization of Cu@Cu2O NPs–RGO.
Core–shell Cu@Cu2O nanoparticles on reduced graphene oxide (Cu@Cu2O NPs–RGO) nanocomposite were prepared at room temperature by in situ reduction of graphene oxide (GO) and copper sulfate using l-ascorbic acid as reducing agent and then the air oxidation of copper nanoparticles’ surface. The Cu@Cu2O NPs–RGO nanocomposite was characterized by infrared spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Finally, Cu@Cu2O NPs–RGO nanocomposite was used as an efficient and reusable heterogeneous catalyst in N-arylation of N-heterocycles.
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Journal: Applied Catalysis A: General - Volume 481, 5 July 2014, Pages 79–88