Synthesis and enhanced gas sensing properties of flower-like ZnO nanorods decorated with discrete CuO nanoparticles

被引：18

作者：

Zhang, Bowen

Fu, Wuyou ^{[1
]}

Li, Huayang

Fu, Xinglin

Wang, Ying

Bala, Hari ^{[1
]}

Wang, Xiaodong

Sun, Guang

Cao, Jianliang

Zhang, Zhanying

机构：

[1] Henan Polytech Univ, Key Lab Environm Friendly Inorgan Mat Univ Henan, Cultivating Base, Jiaozuo 454000, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 176卷

基金：

中国国家自然科学基金;

关键词：

Flower-like morphology; CuO/ZnO; Hierarchical structure; Composite materials; Sensors; FERROMAGNETISM; SOLUBILITY; NANOWIRES;

D O I：

10.1016/j.matlet.2016.03.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Flower-like CuO/ZnO hierarchical structures were prepared via a flexible two-step synthesis method, in which nanorods-assembled flower-like ZnO microstructures with the diameter about 430-1680 nm and the length about 3.6-8.8 mu m were prepared in advance through a chemical solution method, and then a frost-like layer of CuO nanoparticles (NPs) decorated on the surface of ZnO nanorods (NRs) via an ionic layer adsorption and reaction method. Compared with pure ZnO NRs, the flower-like CuO-decorated ZnO NRs show an obvious improvement in gas sensing performance. The gas sensing mechanism of the CuO-decorated ZnO NRs was discussed in relation to the catalytic effect of CuO and the introduction of the p-n junction between CuO and ZnO. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：13 / 16

页数：4

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