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

被引：10

作者：

Ren, Yu ^{[1
,3
]}

Ma, Zhen ^{[2
]}

Bruce, Peter G. ^{[3
]}

机构：

[1] Natl Inst Clean & Low Carbon Energy, Beijing 102209, Peoples R China

[2] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China

[3] Univ St Andrews, EaStCHEM, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

来源：

CRYSTENGCOMM | 2012年 / 14卷 / 08期

基金：

英国工程与自然科学研究理事会; 中国国家自然科学基金;

关键词：

SEMICONDUCTING OXIDES; THIN-FILMS; NANOTUBES; NANOBELTS; TEMPLATE; NANORODS; ARRAYS; ROUTE; ELECTRODEPOSITION; NANOSTRUCTURES;

D O I：

10.1039/c2ce25045d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 O-2 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), N-2 adsorption-desorption, and UV-Vis spectroscopy. The nanowires have a diameter of 50-100 nm and a length of 5-10 mu m, 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.

引用

页码：2617 / 2620

页数：4

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