Preparation and Gas Sensitivity Properties of xwt% SiO2-WO3
Source abstract
Abstract
The powders of xwt%SiO2-WO3 were prepared by the chemical precipitation method, and their microstructures were characterized through XRD and TEM. The effects of SiO2 content and sensors' operating temperature on the sensitivity were investigated. The mechanism of gas sensitivity of WO3 to H2S was also discussed. The results show that the sensitivity to H2S rises when SiO2 added. The sensor has high sensitivity and good selectivity to H2S when x=5 and the optimum working temperature is 180℃.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Sensor and Control Systems · Industrial Technology and Control Systems
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