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用化学沉淀法、十二烷基硫酸钠(简称SDS)微乳液介质法分别合成了SnO2微粉， 并将其制备成旁热式气敏元件，进行气敏性能测定.结果表明，用SDS微乳液合成的SnO２ 纳米微粉，可以提高SnO２气敏元件对某种气体的灵敏度和选择性，对SnO２气体传感器 的开发具有一定的价值.
The SnO2 micropowder was synthesized by chemical precipitation method and sodium dodecyl sulfate (SDS) microemulsion medium method, respectively, and prepared as a by-product gas sensor to measure the gas sensitivity.The results showed that using SDS microemulsion The synthesized SnO2 nano-micron powder can improve the sensitivity and selectivity of the SnO2 gas sensor to a certain gas and has certain value for the development of the SnO2 gas sensor.