Fe_(2)O_(3)/SnO_(2)纳米复合材料的构筑及低温气敏性能  

Construction and low temperature gas sensing properties of Fe_(2)O_(3)/SnO_(2)nanocomposites

作　　者：王祥宇 WANG Xiang-yu(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报(自然科学版)》2025年第3期43-47,共5页Journal of Qiqihar University(Natural Science Edition)

摘　　要：采用水热法将合成的SnO_(2)纳米材料和Fe_(2)O_(3)纳米材料进行复合,制得Fe_(2)O_(3)/SnO_(2)纳米复合材料。使用SEM,TEM,XRD等表征方法对样品进行分析,对Fe_(2)O_(3)/SnO_(2)复合材料的微观形貌进行观察,得到表面颗粒堆积的类球形结构材料。Fe_(2)O_(3)/SnO_(2)复合材料制备方法简单易行,且在低温14℃条件下对NO_(2)有较高的灵敏度,为9.6,响应时间为1 s,为低温条件下提高SnO_(2)气体传感器的气敏性能提供了一种可行性方案。The SnO_(2)nanomaterials and Fe_(2)O_(3)nanomaterials were synthesized and then composited by hydrothermal method to Fe_(2)O_(3)/SnO_(2)nanocomposite materials.The prepared samples were analyzed and characterized by SEM,TEM,XRD and so on.The micro morphology of Fe_(2)O_(3)/SnO_(2)composite materials was observed,and a spherical structure with surface particle stacking was obtained.The preparation method of Fe_(2)O_(3)/SnO_(2)materials is simple and easy,and it has a high sensitivity of 9.6 to NO_(2)at a low temperature of 14℃,with a time of 1 s.This provides a feasible solution to improve the gas sensitivity of tin dioxide gas sensors at low temperatures.

关 键 词：SnO_(2) Fe_(2)O_(3) 低温 气敏性能 

分 类 号：O614[理学—无机化学]