Nanoparticles-assembled Co3O4 nanorods p-type nanomaterials: One-pot synthesis and toluene-sensing properties

被引：91

作者：

Wang, Lili ^{[1
]}

Deng, Jianan ^{[1
]}

Lou, Zheng ^{[1
]}

Zhang, Tong ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 201卷

关键词：

P-type; Co3O4; 1D nanostructure; Toluene sensing; GAS SENSOR; NANOSTRUCTURES SYNTHESIS; PERFORMANCE; NANOFIBERS; FABRICATION; CO;

D O I：

10.1016/j.snb.2014.04.074

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

One dimensional (1D) Co3O4 nanorods have been synthesized by a simple one-pot solvothermal method. Field emission scanning electron microscopic and transmission electron microscopic results revealed that the Co3O4 samples were rod-like structure with a diameter of 50 nm, where the subunits were irregularshaped nanoparticles. The response to 10 ppm toluene of the rod-like Co3O4-based sensor was 6.0 at 200 C, which was about 6 times higher than that of the commercial Co3O4 powder. Interestingly, the rodlike Co3O4-based sensor exhibited not only a high response but also faster response and recovery speeds to toluene gases. The good sensing performance suggests that this unique rod-like Co304 nanostructure could be a promising candidate as a sensing material for gas sensor. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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