Electrical properties of carbon nanotubes in flowing vapor

作     者：肖鹏 

作者机构：College of Mathematics and Physics Chongqing UniversityChongqing 400030P.R. China 

出 版 物：《Journal of Chongqing University》 (重庆大学学报（英文版）)

年 卷 期：2006年第5卷第3期

页      面：161-164页

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Funded by the Science Foundation from the Scientific Committee of Chongqing ( No.CSTC2005BB4200) 

主　　题：碳纳米管 金属纳米粉末 感应电位 电性能 气流 

摘      要：Electric potentials were generated from carbon nanotubes immersed in flowing vapors. The nanomaterials used in this study were multiwall carbon nanotubes(MWCNTs) and silver nanopowders. These nanomaterials were dispersed and densely packed on a substrate and immersed in flowing vapors generated from solution such as water, ethanol and KCl. The potentials generated from these samples were measured by a voltmeter. Experimental results showed that the electric potentials were produced at the surface of the MWCNT samlpes, and strongly dependent on the pretreatment of MWCNT and properties of the flowing vapors. The mechanism of vapor-flow induced potentials may be ascribed to ions in the flowing vapors. This property of MWCNTs can advantage their application to nanoscale sensors, detectors and power cells.