A Novel Highly Sensitive NO₂ Sensor Based on Perovskite Na_0.5+xBi_0.5TiO_3-δ Electrolyte.

ABSTRACT: NO_x is one of dangerous air pollutants, and the demands for reliable sensors to detect NO_x are extremely urgent recently. Conventional fluorite-phase YSZ used for NO_x sensor requires higher operating temperature to obtain desirable oxygen ion conductivity. In this work, perovskite-phase Na_0.5Bi_0.5TiO₃ (NBT) oxygen conductor was chosen as the solid electrolyte to fabricate a novel highly sensitive NO₂ sensor with CuO as the sensing electrode and Pt as reference electrode. Na dopped Na_0.5Bi_0.5TiO₃ greatly improved the sensing performance of this sensor. The optimal sensor based on Na_0.51Bi_0.50TiO_3-δ exhibited good response-recovery characteristics to

SUBMITTER: Xiao Y 

PROVIDER: S-EPMC5504058 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature