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Title: Sonochemical fabrication of Cu{sub 2}O@C/graphene nanohybrid with a hierarchical architecture

A three-dimensional Cu{sub 2}O@C/graphene nanohybrid hierarchical sphere-like architecture has been successfully synthesized by a sonochemical method. The as-prepared nanocomposite has been characterized using various techniques including powder X-ray diffraction, scanning electron microscopy, field emission transmission electron microscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and Fourier transmission infrared spectrometry. Secondary big hierarchical Cu{sub 2}O@C spheres (diameter of ∼200 nm) consist of primary small Cu{sub 2}O@C spheres (diameter of 5–10 nm), which are uniformly distributed on the graphene surface. In the primary small Cu{sub 2}O@C sphere, amorphous carbon is formed by the oxidation–reduction reaction between 1-aminopyrene and copper(II) acetate in the sonochemical process. Our facile sonochemical method may apply to the preparation of other metal oxide/graphene hierarchical nanohybrids. - Highlights: • The Cu{sub 2}O@C/graphene nanohybrid hierarchical architecture was obtained. • Secondary big hierarchical Cu{sub 2}O@C spheres (diameter of ∼200 nm) consist of primary small Cu{sub 2}O@C spheres (diameter of 5–10 nm). • 1-Aminopyrene serves as a “binding agent” operating through the π–π interactions.
Authors:
 [1] ;  [2] ; ; ; ;  [1] ;  [1]
  1. School of Chemical Engineering, University of Ulsan, Ulsan 680-749 (Korea, Republic of)
  2. (China)
Publication Date:
OSTI Identifier:
22451118
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 220; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACETATES; ARCHITECTURE; COPPER; COPPER OXIDES; FABRICATION; FIELD EMISSION; GRAPHENE; INTERACTIONS; OXIDATION; POWDERS; SCANNING ELECTRON MICROSCOPY; SPHERES; SURFACES; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY