SnO2纳米颗粒的制备及对甲醛气敏性能的研究
Study on Preparation of SnO2 Nanoparticles and Their Gas Sensitivity to Formaldehyde
邹欣明 1栾坤喜 1邢雨婷 1康嘉琪 1谢宗昇 1孟丹1
作者信息
- 1. 沈阳化工大学 化学工程学院,辽宁 沈阳 110142
- 折叠
摘要
采用溶胶-凝胶法制备了SnO2 纳米颗粒,并用X射线衍射仪(XRD)和扫描电镜(SEM)对制备的材料进行结构及形貌表征,测试了纳米颗粒对甲醛的敏感特性,讨论了锡盐与柠檬酸用量对SnO2 纳米颗粒尺寸和气敏性能的影响.结果表明:当锡盐与柠檬酸的用量配比(摩尔比)为1∶2.5 时,可以制备分散度良好并且具有最佳气敏性能的纳米颗粒结构,展现了SnO2 纳米颗粒在甲醛气体检测方面的良好应用前景.
Abstract
SnO2 nanoparticles were prepared by sol-gel method and characterized by XRD and SEM.The sensitivity of nanoparticles to formaldehyde was tested,and the effects of the mole ratio of tin salt to citric acid on the size and gas sensitivity of SnO2 nanoparticles were discussed.The results showed that when the mole ratio of tin salt to citric acid was 1∶2.5,the nanoparticle structure had good dispersion.Moreover,the formaldehyde sensing properties were investigated.The results showed that SnO2 nanoparticles had the characteristics of rapid response and high sensitivity to formaldehyde,showing good application prospect of SnO2 in formaldehyde gas detection.
关键词
SnO2/纳米颗粒/气敏特性/甲醛Key words
SnO2/Nanoparticles/Gas-sensitive characteristics/Formaldehyde引用本文复制引用
出版年
2024
NETL
NSTL
万方数据