微乳液法纳米SnO_2材料的合成、结构与气敏性能  

Preparation, Microstructure and Gas Sensing Properties of Nanosized SnO_2 Materials Made by Microemulsions

作　　者：潘庆谊[1] 徐甲强[2] 刘宏民 安春仙[2] 贾娜 

机构地区：[1]上海大学化学化工学院,上海200072 [2]郑州轻工业学院化学工程系,郑州450002

出　　处：《无机材料学报》1999年第1期83-89,共7页Journal of Inorganic Materials

基　　金：河南省自然科学基金!954030500

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SnO_2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SnO_2材料平均晶粒度的影响．实验结果表明：由AES或K_(12)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SnO_2，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．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.

关 键 词：氧化锡 纳米材料 气体传感器 表面活性剂 

分 类 号：TN379.04[电子电信—物理电子学] TF123.25[冶金工程—粉末冶金]