Facile synthesis of Cu/CuxO nanoarchitectures with adjustable phase composition for effective NOx gas sensor at room temperature

被引：20

作者：

Yang, Lixue ^{[1
]}

Li, Li ^{[1
]}

Yang, Ying ^{[1
]}

Zhang, Guo ^{[1
]}

Gong, Lihong ^{[1
]}

Jing, Liqiang ^{[1
]}

Fu, Honggang ^{[1
]}

Shi, Keying ^{[1
]}

机构：

[1] Harbin Normal Univ, Dept Chem, Harbin 150025, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Metals; Oxides; Surface properties; CU2O; CUO; NANOSTRUCTURES; SNO2; PERFORMANCE; MORPHOLOGY; FILMS; ELECTRODEPOSITION; NANOPARTICLES; EVOLUTION;

D O I：

10.1016/j.materresbull.2013.05.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Cu/CuxO nanoarchitectures with 30-70 nm hollow nanospheres are successfully synthesized by a facile wet chemical method. The synthesized products have been studied by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and thermo gravimetric-differential scanning calorimetry (TG-DSC) analysis. The Cu/CuxO sensors based on the nanoarchitectures are used to detect the NOx at room temperature. The results demonstrate that the obtained Cu/CuxO nanoarchitectures reduced by 3 mmol NaBH4 exhibits excellent gas-sensing properties: low detection limit of 0.97 ppm, relatively high sensitivity, short response time, broad linear range and high selectivity. The reasons for gas-sensing activity enhancement on Cu/CuxO nanoarchitectures are discussed. The Cu/CuxO nanocrystalline with the hierarchical pores structure and tunable compositions have significant for application of gas sensor. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：3657 / 3665

页数：9

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