NiO敏感电极NH_3传感器制备及其响应性能  

Fabrication of NH_3 sensor with NiO sensitive electrode and its response performance

作　　者：章东兴[1,2] 邹杰[2] ZHANG Dong-xing;ZOU Jie(College of Basic Science,Ningbo Dahongying University,Ningbo 31517S,China;College of Information Science and Engineering,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大红鹰学院基础学院,浙江宁波315175 [2]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《传感器与微系统》2018年第8期33-36,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金青年科学基金资助项目(61702367);浙江省宁波市科技局自然科学基金资助项目(2017A610099);宁波大红鹰学院校科研基金资助项目(1320141017)

摘　　要：以Ni O为敏感电极材料,钇稳定氧化锆(YSZ)陶瓷片为电解质材料,采用丝网印刷技术制备了片式混合电势型NH3传感器,对传感器在不同NH3浓度和不同工作温度下响应性能进行了研究。结果显示:在工作温度为550℃时,传感器对NH3的响应值最大,达到-57 m V。制备的传感器在550℃时,对(50~600)×10-6NH3具有良好的响应性能,响应信号与NH3浓度的对数呈现出良好的线性关系。在550℃高温时,传感器表现较好的重复性,但其交叉敏感性有待提高。为阐述传感器的敏感机理,进行了交流阻抗测试研究。Mixed potential-type planar NH3 sensor using yttria-stabilized zirconia （YSZ） as electrolyte material and NiO as sensitive electrode material is fabricated by means of screen-printing technology. The response characteristics of sensor is evaluated under different concentrations of NH3 and working temperatures. The results indicate that the response value reaches the largest at temperature of 550 °C, which reaches -57 mV. The sensor shows good response to （50 -600） xl0-6 NH3 and the response signal has good linear relationship with logarithm of NH3 concentration. At 550 °C, the sensor shows good repeatability. However, the cross-sensitivity of sensor needs to be improved. In addition, AC impedance test research is carried out to explain the sensitive mechanism of the

关 键 词：NIO 混合电势 Nit3 传感器 

分 类 号：TP211.2[自动化与计算机技术—检测技术与自动化装置]