【摘要】 半导体纳米粒子应用于气敏材料是一新兴的研究领域，综述了ＳｎＯ２ 半导体超细化处理的研究进展。对各种制备方法作了详细描述，控制材料粒径的大小及粒度的分布、保证纳米团簇的稳定存在是纳米ＳｎＯ２ 制备的关键；分析了纳米ＳｎＯ２ 半导体材料的气敏特性，由于材料的比表面积增大、活性位增多，而具有着优异的气敏性能；并对其应用前景做出了进一步的展望。更多还原

【Abstract】 Study of nanoscale semiconductor as sensing materials is a new approach. The preparation of nano SnO 2 is summarized,it’s the focal point to control the size and dispersion of SnO 2 nanoparticles and keep particles stable.The gas sensing property of the materials is analyzed, the excellent gas sensing property is due to the high surface area and more active site.Their application in gas sensing material has been discussed.更多还原