热爆形变合成SnO_2纳米纤维的形貌与结构  

Morphology and structure of SnO_2 nanofibers prepared by thermal explosive deforming synthesis method

作　　者：李靓[1,2] 李俊寿[1] 郭焕升[1] 王建江[1] 

机构地区：[1]军械工程学院先进材料研究所 [2]65186部队,辽宁铁岭112609

出　　处：《功能材料》2007年第4期546-548,共3页Journal of Functional Materials

基　　金：国家自然科学基金(50572122)

摘　　要：SnO_2是一种重要的宽能级n型半导体金属氧化物,在气体检测、电池电极、光催化剂等方面具有广泛的应用。关于SnO_2纳米纤维的合成方法较少,且存在各种不足。热爆形变合成法(TEDS)是制备SnO_2纳米纤维的一种新方法,工艺简单,反应快速、耗能低,应用前景广阔。介绍了热爆形变合成法制备SnO_2纳米纤维的基本方法,并对合成机理进行了初步探讨。通过XRD、SEM、TEM对SnO_2纳米纤维的形貌与结构进行观测分析,证实SnO_2纳米纤维具有四方金红石结构,形貌弯曲且存在结点,直径约20～100nm。SnO2 is an important n-type metal oxide semiconductor with broad energy levels and widespread apply in gas detection electrode photocatalysts etc. Compare to SnO2 nanopowders and nanofilms. The preparation technology of SnO2 nanofihers are less. Thermal explosive deforming synthesis （TEDS） is a new nanofihers preparation method with advantages of easier process. Faster preparation and lower energy consumption. In this paper. The author introduces the basic method and performs preliminary analysis on the synthesis mechanism of TEDS,XRD,SEM and TEM investigation show that SnO2 nanofibers have a tetragonal ruffle-like structure,belt shape with nodes. The an average diameter is about 20 to 100nm.

关 键 词：二氧化锡 纳米纤维 热爆形变合成法 气敏传感器 

分 类 号：TB383[一般工业技术—材料科学与工程]