Mixed potential type methanol gas sensor based on Gd2Zr2O7 solid state electrolyte and ZnSb2O6 sensing electrode

Mixed Potential Type Acetone Sensor with Ultralow Detection Limit for Diabetic Ketosis Breath Analysis

“…Gd 2 Zr 2 O 7 solid electrolyte was obtained from our previous work . A simple sol–gel method was adopted to prepare the CoSb 2 O 6 sensing material similar to our work, and the planar type gas sensor was fabricated utilizing CoSb 2 O 6 sensing material. , Detailed information on synthesis and characterization and sensor construction are provided in the Supporting Information. The potential difference between SE and RE is the detection signal of the sensor, which is recorded every second by a digital multimeter (Fluke 8846A), and the difference between this signal in the target gas and the air is defined as the response (ΔV).…”

“…The absence of one to eight oxygen ions brings a higher concentration of intrinsic defects, which is the source of its high conductivity, making it an ideal choice for solid electrolyte. − As for sensing materials, there are few reports on sensing properties of materials with a trirutile structure, although SnO 2 with a rutile structure is one of the most typical sensing materials, which may be related to the fact that there are few materials possessing this structure. The trirutile-type antimony-based composite metal oxides are interesting to explore due to their active chemical properties caused by the distorted polyhedron structure between metal atoms and Sb. − The potential of ZnSb 2 O 6 for gas detection was demonstrated in our previous work . In addition, like many other cobalt-containing oxides, CoSb 2 O 6 is of great interest and potential for gas sensing purposes. − Herein, we constructed a mixed potential acetone sensor based on the Gd 2 Zr 2 O 7 solid electrolyte combined with CoSb 2 O 6 –SE.…”