%0 Online Multimedia %A Lin, Wei %A Moon, Kyoung-Sik %A Zhang, Shanju %A Ding, Yong %A Shang, Jintang %A Chen, Mingxiang %A Wong, Ching-ping %D 2010 %T Microwave Makes Carbon Nanotubes Less Defective %U https://acs.figshare.com/articles/media/Microwave_Makes_Carbon_Nanotubes_Less_Defective/2782711 %R 10.1021/nn901621c.s002 %2 https://acs.figshare.com/ndownloader/files/4477123 %K CNTs annealed %K Carbon Nanotubes %K 3 min %K defect density %K microwave response %K defect reduction %K carbon nanotubes %K DefectiveAn ultrafast microwave annealing process %K thermogravimetric analyses %K GPa %K show increases %X An ultrafast microwave annealing process has been developed to reduce the defect density in vertically aligned carbon nanotubes (CNTs). Raman and thermogravimetric analyses have shown a distinct defect reduction in the CNTs annealed in microwave for 3 min. Fibers spun from the as-annealed CNTs, in comparison with those from the pristine CNTs, show increases of ∼35% and ∼65%, respectively, in tensile strength (∼0.8 GPa) and modulus (∼90 GPa) during tensile testing; an ∼20% improvement in electrical conductivity (∼80000 S m−1) was also reported. The mechanism of the microwave response of CNTs was discussed. %I ACS Publications