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

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2014.08.017· OSTI ID:22451118

Xu, Jiasheng ^[1]; Dang, Dinh Khoi; Chung, Jin Suk; Hur, Seung Hyun; Choi, Won Mook ^[1]

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1. School of Chemical Engineering, University of Ulsan, Ulsan 680-749 (Korea, Republic of)

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.

• OSTI ID: 22451118
• Journal Information: Journal of Solid State Chemistry, Vol. 220; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

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