ZnO hierarchical nanostructures grown at room temperature and their C2H5OH sensor applications

被引：60

作者：

Kim, Kang-Min ^{[1
]}

Kim, Hae-Ryong ^{[1
]}

Choi, Kwon-Il ^{[1
]}

Kim, Hyo-Joong ^{[1
]}

Lee, Jong-Heun ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 155卷 / 02期

关键词：

ZnO; Gas sensors; Hierarchical nanostructures; C2H5OH sensors; ZINC-OXIDE FILMS; GAS SENSORS; SENSING PROPERTIES; SNO2; NANOWIRE; NANORODS; NANOFLOWERS; OXYGEN;

D O I：

10.1016/j.snb.2011.01.040

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Highly crystalline ZnO hierarchical nanostructures were prepared at room temperature through the alkaline hydrolysis of zinc salt by the forced mixing of two immiscible solutions: Zn-nitrate aqueous solution and oleic-acid-dissolved n-hexane solution, The oleic acid acted as a surfactant in the room-temperature formation of well-defined ZnO hierarchical nanostructures, which subsequently demonstrated a sensitive and selective detection of C2H5OH. The responses of these hierarchical nanostructures to 10-100 ppm C2H5OH ranged from 15.7 to 177.7, which were 7-9 times higher than those of the agglomerated nanoparticles. (C) 2011 Elsevier BM. All rights reserved.

引用

页码：745 / 751

页数：7

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