The powder of xwt%SiO2-WO3 was prepared by chemical precipitation.The microstructure was characterized through XRD and TEM.The effects of SiO2 content and sensors operating temperature on the sensitivity were investig...The powder of xwt%SiO2-WO3 was prepared by chemical precipitation.The microstructure was characterized through XRD and TEM.The effects of SiO2 content and sensors operating temperature on the sensitivity were investigated.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℃.展开更多
文摘The powder of xwt%SiO2-WO3 was prepared by chemical precipitation.The microstructure was characterized through XRD and TEM.The effects of SiO2 content and sensors operating temperature on the sensitivity were investigated.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℃.
