Promising methane gas sensor synthesized by microwave-assisted Co3O4 nanoparticles

被引：83

作者：

Shaalan, N. M. ^{[1
]}

Rashad, M. ^{[1
,2
]}

Moharram, A. H. ^{[3
]}

Abdel-Rahim, M. A. ^{[1
]}

机构：

[1] Univ Assiut, Dept Phys, Fac Sci, Assiut 71516, Egypt

[2] Univ Tabuk, Dept Phys, Fac Sci, POB 741, Tabuk 71491, Saudi Arabia

[3] King Abdulaziz Univ, Dept Phys, Coll Arts & Sci, Rabigh 21911, Saudi Arabia

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2016年 / 46卷

关键词：

Co3O4; nanoparticles; Methane gas sensing; Semiconductor devices; SENSING PROPERTIES; COBALT OXIDE; MESOPOROUS CO3O4; SNO2; PERFORMANCE; ETHANOL; METAL;

D O I：

10.1016/j.mssp.2016.01.020

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The morphology and gas sensing characteristics of Co3O4 nanoparticles prepared using the microwave irradiation were investigated. XRD and TEM are used to analyze the structural and the morphological properties of the prepared nanoparticles. XRD results confirmed the formation of pure phase of these nanoparticles. The gas sensor based on the synthesis Co3O4 nanoparticles reveals faster response and recovery time at low temperature detection toward methane gas. Specifically, for methane concentration of 1%, the response and the recovery times at 200 degrees C are 100 s and 50 s, respectively. Furthermore, the sensing characteristics of Co3O4 nanoparticles were improved by increasing the operating temperatures and gas concentrations as well. The experimental results clearly demonstrate the potential use of Co3O4 nanoparticles as a sensing material in the fabrication of CH4 sensors. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1 / 5

页数：5

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