FANG Jia-hua, TAN Qiu-lin, LIU Wen-yi, et al. Gas sensitivity simulation study on hydroxyl-modified carbon nanotubes gas sensor[J]. 2015, 34(8): 57-60.
FANG Jia-hua, TAN Qiu-lin, LIU Wen-yi, et al. Gas sensitivity simulation study on hydroxyl-modified carbon nanotubes gas sensor[J]. 2015, 34(8): 57-60. DOI: 10.13873/J.1000-9787(2015)08-0057-04.
The response sensitivity of sensor will be improved by using hydroxy-modified carbon nanotube. The two gas molecules adsorption on the intrinsic single-walled carbon nanotubes( SWCNT) and hydroxy-modified single-walled carbon nanotubes( SWCNT-OH) are studied using density functional theory. Analysis on their density of states
and try to change position and direction of gas molecules adsorption on carbon nanotubes
from adsorption energy
transfer-charge
adsorption distance
provide comparison and theoretical analysis for gas response sensitivity of intrinsic SWCNT and SWCNT—OH and the optimal adsorption position of these two gas molecules on carbon nanotubes.