A one-step method for preparation of Cu@Cu2O nanoparticles on reduced graphene oxide and their catalytic activities in N-arylation of N-heterocycles

作者：Movahed Siyavash Kazemi; Dabiri Minoo; Bazgir Ayoob^*

来源：Applied Catalysis A: General , 2014, 481: 79-88.

DOI：10.1016/j.apcata.2014.04.023

• Graphene
• Copper
• N-Arylation
• Nanoparticle
• L-Ascorbic acid

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.

• 出版日期2014-7-5