High-performance carbon nanotube hydrogen sensor
High-performance carbon nanotube hydrogen sensor
复制标题
DOI：
10.1016/j.snb.2010.06.002
复制
发表时间：
2010-08
影响因子：
8.4
通讯作者：
Wei Li;N. Hoa;Dojin Kim
中科院分区：
文献类型：
--
作者：
Wei Li;N. Hoa;Dojin Kim
以单壁碳纳米管（SWCNT）和壳聚糖为复合材料，研制了一种高灵敏度、高选择性的氢气传感器。在复合材料或壳聚糖中的缀合物材料的帮助下，SWCNT对氢的固有限制响应大大改善。此外，围绕单壁碳纳米管的壳聚糖选择性地穿过氢分子，过滤掉其他极性分子，增强了单壁碳纳米管传感器对氢的选择性。通过壳聚糖的氨基和羟基官能团与SWCNT接触来实现改进。
A hydrogen sensor of high sensitivity and selectivity based on the composite of single-walled carbon nanotube (SWCNT) and chitosan was developed. The intrinsically limited response of SWCNT to hydrogen is greatly improved with the assistance of the conjugate material in the composite, or in the chitosan. Furthermore, the chitosan surrounding the SWCNTs selectively passes through the hydrogen molecules, filtering out other polar molecules, enhancing the selectivity of the SWCNT sensor towards hydrogen. The improvements are achieved with the amino and hydroxyl functional groups of chitosan in contact with the SWCNTs.