In this work, the gas sensitive property and mechanism of MWCNTs were discussed and the gas sensitive mechanism of MWCNTs doped SnO2 gas sensors and MWCNTs decorated Pt electrodes were studied.

• 本论文探讨了多壁碳纳米管自身的气敏特性及气敏机理，并研究了利用多壁碳纳米管掺杂二氧化锡气体传感器及多壁碳纳米管修饰铂电极的气敏特性。