传感技术学报2012，Vol.25Issue(12)：1631-1635,5.DOI:10.3969/j.issn.1004-1699.2012.12.002
基于La0.9Sr0.1Ga0.8Mg0.2O3-δ固体电解质的电流型NO2传感器敏感特性的研究
Research on the Sensing Characteristics of Amperometric NO2 Sensor Based on La0.9Sr0.1Ga0.8Mg0.2O3-δ
摘要
Abstract
Amperometric NO2 Sensor Based on La0.9Sr0.1 ,Ga0.8Mg0.2O3_8(LSGM,Sr、Mg doped LaGaO3)with NiO sensing electrode was prepared by screen-printing technique. The physical characteristics of the sensor were studied by the X-ray diffraction and scanning electron microscope. The sensitivity and stability of the sensor was studied by measuring the Ⅰ-Ⅴ curves and response/recovery time characteristics under different N02 concentrations and temperatures of current. The results show that,at the range of 400 ℃ ～650 ℃,there is a good linear relationship between the variation of the current change △I and NO2 concentration of the sensor. The stability-testing results show that the response current amplitude of the sensor decreased to some extent as time goes by,and the stability of the sensor needs to be further improved.关键词
NO2传感器/LSGM/Ⅰ-Ⅴ特性/响应时间/稳定性Key words
NO2 sensor/LSGM/ Ⅰ-Ⅴ characteristics/ response/recovery time/ stability分类
信息技术与安全科学引用本文复制引用
顾媛媛,陈康,江浩,简家文,王金霞..基于La0.9Sr0.1Ga0.8Mg0.2O3-δ固体电解质的电流型NO2传感器敏感特性的研究[J].传感技术学报,2012,25(12):1631-1635,5.基金项目
国家自然科学基金项目(60971047) （60971047）
中国博士后科学基金会项目(20100470735,2010-2012) （20100470735,2010-2012）
浙江省自然科学基金项目(Y1090035) （Y1090035）
