The effects of sintering temperature of MnCr2O4 nanocomposite on the NO2 sensing property for YSZ-based potentiometric sensor

被引：77

作者：

Diao, Quan ^{[1
]}

Yin, Chengguo ^{[1
]}

Guan, Yingzhou ^{[1
]}

Liang, Xishuang ^{[1
]}

Wang, Shuo ^{[1
]}

Liu, Yingwei ^{[1
]}

Hu, Yunfeng ^{[2
]}

Chen, Hong ^{[2
]}

Lu, Geyu ^{[1
]}

机构：

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

[2] Jilin Univ, Dept Control Sci & Technol, Changchun 130012, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 177卷

关键词：

NO2; sensor; YSZ; MnCr2O4; Mixed potential; STABILIZED-ZIRCONIA; GAS SENSORS; REFERENCE-ELECTRODE; EXHAUST-GASES; OXIDE; BEHAVIOR; PERFORMANCES; SENSITIVITY; SELECTIVITY; IMPROVEMENT;

D O I：

10.1016/j.snb.2012.11.040

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, MnCr2O4 with spinel structure has been prepared by using polymeric precursor method. The thermal stability, grain size and surface morphology of MnCr2O4 calcined at different temperatures were studied using thermogravimetric analysis and differential scanning calorimeter analysis (TG-DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM). Then the YSZ-based sensors using MnCr2O4 sintered at different temperatures (800, 900, 1000, 1100 and 1250 degrees C) as electrode were fabricated and their NO2 sensing properties were investigated. Results demonstrate that MnCr2O4 sample calcined at 1000 degrees C exhibits higher response to 100 ppm NO2, which is about 73 mV. It is believed that the calcined temperature affect the material's sensing properties. In addition, the sensing characteristics such as selectivity, repeatability were investigated. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：397 / 403

页数：7

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