Electrochemical synthesis and characterization of hierarchically branched ZnO nanostructures on ensembles of gold nanowires

被引：13
|
作者：
Ongaro, Michael [1 ]
Gambirasi, Arianna [1 ,2 ]
Favaro, Monica [2 ]
Ugo, Paolo [1 ]
机构：
[1] Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Venice, Italy
[2] CNR, Inst Surface & Inorgan Chem, I-35127 Padua, Italy
来源：
ELECTROCHIMICA ACTA | 2012年 / 78卷
关键词：
Zinc oxide; Hierarchical nanostructure; Nanoelectrode; Photooxidation; Electron back scatter diffraction; GROWTH; ELECTRODEPOSITION; ARRAYS; DIFFRACTION; NUCLEATION; DEPOSITION; OXIDE;
D O I：
10.1016/j.electacta.2012.06.077
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
This study presents an electrosynthetic methodology to obtain hierarchically structured ZnO electrodes with improved surface area, by exploiting gold nanowires ensembles (3D-NEEs) as the growing substrate. By this way, semiconductor electrodes organized in the shape of fir-like branches are obtained. Branched nanofibres are characterized by electron microscopy and electron backscatter diffraction (EBSD), the latter technique allowing the determination of the crystalline habit of individual nanostructures. The hierarchical branched nanowires show enhanced performances with respect to water photooxidation in comparison with already known nanostructured materials such as 1D-ZnO nanowires. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：539 / 546
页数：8
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