Issue 8, 2012
From the journal:

CrystEngComm

Transformation of mesoporous Cu/Cu2O into porous Cu2O nanowires in ethanol†

Yu Ren,*ac   Zhen Ma*b  and  Peter G. Brucec  

* Corresponding authors

a National Institute of Clean-and-low-carbon Energy, Beijing, China
E-mail: renyu3@gmail.com
Fax: +(00)86 (0)1057339649-9664
Tel: +(00)86 (0)1057339664

b Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P.R. China
E-mail: zhenma@fudan.edu.cn

c EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife KY16 9ST, U.K.
Fax: +(00)44 (0)1334 463808
Tel: +(00)44 (0)1334 463825

Abstract

Here we report the transformation of ordered mesoporous Cu/Cu2O into porous Cu2O nanowires in ethanol. This transformation may be initiated by the oxidation of metallic Cu in the intergrowth Cu/Cu2O mesostructure by O2 dissolved in ethanol, and the formed Cu2O nanoparticles then self-assemble into 1D nanowires. The Cu2O nanowires were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption, and UV-Vis spectroscopy. The nanowires have a diameter of 50–100 nm and a length of 5–10 μm, and they are made up of ca. 4.0 nm Cu2O nanoparticles. The band gap of the Cu2O nanowires is 2.80 eV, with a strong blue shift from the bulk phase of 2.2 eV. Finally, the catalytic performance of porous Cu2O nanowires and bulk Cu2O in the conversion of N2O was compared.

Graphical abstract: Transformation of mesoporous Cu/Cu2O into porous Cu2O nanowires in ethanol

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Article information

DOI
https://doi.org/10.1039/C2CE25045D
Article type
Communication
Submitted
10 Jan 2012
Accepted
08 Feb 2012
First published
09 Feb 2012

CrystEngComm, 2012,14, 2617-2620

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Transformation of mesoporous Cu/Cu2O into porous Cu2O nanowires in ethanol

Y. Ren, Z. Ma and P. G. Bruce, CrystEngComm, 2012, 14, 2617 DOI: 10.1039/C2CE25045D

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