NiO Sensing Electrode For NOx Detection At High Temperature

摘要：

　　Mixed-potential-type NO2 sensor based on yttria-stabilized zirconia(YSZ) with NiO sensing electrode was prepared by the screen-printing technique and its characteristics were studied by the X-ray diffraction and scanning electron microscope.The electromotive force (EMF) and complex impedance of the sensor were tested under different NO2 concentrations and temperatures.The results show that,at the range of 550-750℃,the EMF values are positive and almost linear to the logarithm of NO2 concentration.But the sensitivity of the sensor and the amplitude of the EMF response to NO2 concentration both obviously decrease with the increase of the work temperature.In addition,the semicircular arcs of the complex impedance spectra shrink regularly with a raise of NO2 concentration at 600 ℃.

关键词： NiO NOx sensor Yttrium Stabilized Zirconia(YSZ)

作者: Tao Feng Jinfeng Xia Hongqiang Nian Dexin Huang Haifang Xu Yulin Li Bing Xu Dangyu Jiang

作者单位: Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China

会议类型: 国际会议

会议名称: 3rd International Conference on Testing and Evalution of Inorganic Materials(第三届无机材料测试与评价学术年会(TEIM2012))

会议地点: 景德镇

会议语种:英文

页码: 76-80

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）