P2.9.4 The amperometric oxygen sensor based on La0.9Sr0.1Ga0.8Mg0.2O2.85

Kang Chen, Jiawen Jian, Yuanyuan Gu & Hao Jiang
La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM9182) was used to make the amperometric oxygen sensor with a density diffusion barrier. The material of the density diffusion barrier and solid electrolyte are all LSGM9182.The sensor was tested in the atmosphere of O2 and N2 at 873K, 923K and 973K, respectively. From the tested data, it could find out that this sensor presents the favourable limiting current platforms, and the limiting current exhibited a linear dependence on oxygen concentration. Also the response...