摘要
从纳米微粒、纳米薄膜、纳米纤维的角度综述了SnO2纳米材料制备技术的研究进展,报道了一种制备纳米纤维的新方法--热爆合成法,讨论了用该方法制备纳米纤维的基本条件,并对用该方法制备出的SnO2纳米纤维进行了SEM和XRD分析.结果表明,SnO2纤维的直径约20～100 nm,其X射线衍射谱与标准的SnO2衍射谱完全一致.用热爆合成法制备的SnO2纳米纤维,经过研磨还可以制成长度不同的纳米棒.这种材料尺寸均匀、无团聚、稳定性高、比表面积较大,与气体的接触面较大,有利于提高对气体的灵敏度,有望发展成较为理想的气敏、湿敏、压敏基体材料.
Recent advances in research on technique of preparing nano-SnO2 were summarized in terms of nano-particles, nano-film and nano-fibers. A new method that produces SnO2 nano-fibers was reported, which was named the thermal explosive synthesis （TES）. The basic conditions of producing the nano-fiber material were discussed. SnO2 nano-fibers produced by TES were analyzed by XRD and SEM. As a result, the diameter of the fiber is about 20～100nm, it＇s diffractogram is the same as that of SnO2. Nano-rods of different length can be obtained by grinding these SnO2 Nano-fibres, they have not only homogenous size, but high specific surface area, and no glomeration. So they will become a bulk materials for gas sensor, humidity sensor and piezoresistive pick-up.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2005年第4期306-310,共5页
Powder Metallurgy Technology
作者简介
李俊寿，男，副教授，主要从事燃烧合成新材料的研究。E—mail：lijs258@sina．com
