Pt 负载 PANI/CNTs 复合纳米线的制备及室温 NH3气敏性能研究  

Preparation of Pt Doped PANI/CNTs Composite Nanowires for NH3 Gas Sensor at Room Temperature

作　　者：阚侃[1] 刘颖[2] 石雨[1] 田媛[1] 崔宝玉[1] 

机构地区：[1]黑龙江省科学院大庆分院,黑龙江大庆163319 [2]黑龙江省科学院,哈尔滨150000

出　　处：《黑龙江科学》2015年第15期12-15,共4页Heilongjiang Science

基　　金：黑龙江省科学院青年刨新基金重点项目;黑龙江省院所基本应用技术研究专项

摘　　要：本文制备了 Pt 负载聚苯胺包覆碳纳米管（Pt-PANI/CNTs）复合纳米线，并研究了复合材料的 NH3气敏性能。采用 SEM、FTIR、XRD 和 BET 等研究了材料的形貌和结构。结果表明：所制备的 Pt-PANI/CNTs 复合纳米线表面呈荆棘状结构，Pt 纳米粒子均匀分布在表面。在室温下，Pt-PANI/CNTs-6薄膜传感器对 NH3具有较好的气敏响应。当 NH3气体浓度为100 ppm 时，灵敏度达148.3%，响应时间为2.1s，最低检测线为1 ppm。The composite nanowires of Pt doped polyaniline coated carbon nanotubes （Pt-PANI/CNTs） for NH3 gas sensing application are presented in this paper. The morphologies and properties have been characterized by SEM, FTIR, XRD and BET respectively. The results show that the Pt-PANI/CNTs composite nanowires are bramble-like, and the Pt uniform distribution on the surface. The Pt-PANI/CNTs-6 thin film sensor has good gas sensing response to NH3 at room temperature. The highest sensitivity to 100 ppm NH3, sensitivity is 148.3% and the response time is 2.1 s, and the limit level is 1 ppm.

关 键 词：聚苯胺 碳纳米管 铂 纳米线 氨气 传感器 

分 类 号：O643.3[理学—物理化学] O631.2[理学—化学]