NI Hui, HU Jing, ZOU Cheng, et al. Research on gas sensitive property of tin dioxide nanomaterial[J]. 2018, (12): 17-20. DOI: 10.13873/J.1000-9787(2018)12-0017-04.
二氧化锡纳米材料的气敏特性研究
摘要
为研究不同结构对二氧化锡(SnO
2
)气体性能的影响
通过静电纺丝方法制备出SnO
2
纳米棒和纳米管
并研究SnO
2
纳米材料对NO2
NH3等气体的气敏特性。测试结果表明:SnO
2
纳米管对NO2的响应明显优于SnO
2
纳米棒
可实现室温下线性检测(100~1 000)×10-9范围内NO2气体
且对1 000×10-9NO2气体的最高响应可达95. 8%
重复性好
响应及恢复时间均小于15 s
远低于大多数SnO
2
传感器。
Abstract
In order to study on effect of different structures on property of tin dioxide( SnO
2
) gas
SnO
2
nanorods and nanotubes are prepared by electrospinning
and the gas-sensitive properties to NO2 and NH3 are investigated.The results show that the response of SnO
2
nanotubes is better than that of SnO
2
nanorods to NO2 gases
which can realize linear detection of NO2 gas in the range of 100
1 000 × 10-9 at room temperature and its maximum response can reach up to 95. 8 % to 1 000 × 10-9 NO2 with good repeatability. Moreover
the response time and recovery time are both less than 15 s