【摘要】 本文研究了由阴离子表面活性剂组成的微乳液在纳米SnO₂气敏材料合成中的应用，研究了阴离子表面活性剂类型及肋表面活性剂对纳米SnO₂材料平均晶粒度的影响．实验结果表明：由AES或K₁₂和丁醇组成的微乳液可得到平均颗粒尺寸＜20nm，平均晶粒度只有6nm左右的均分散SnO₂，用这种材料制成的气敏元件无需掺杂即具有较高的气体灵敏度．更多还原

【Abstract】 The application of microemulsion made of anion surfactants in preparing SnO2 naosized materials was studied, and the influence of different anion surfactants and assistant surfactants onthe mean grain size of nanosized SnO2 was also researched by XRD and TEM. It can be knownfrom the experimental results, monodispersed SnO2 nanosized materials with the mean grain sizeo f about 6urn and average partical size smaller than 20um can be obtained from the microemulsion composed of AES or K12 anion surfactant and butanol assistant surfactant, and it has highsensitivity without catalysts and additives.更多还原