Diameter-specific growth of single-walled carbon nanotubes using tungsten supported nickel catalysts. (July 2017)

• Record Type: Journal Article
• Authors: Li, Meihui; Yang, Feng; Ding, Li; Liu, Xiyan; Zhang, Zeyao; Zhang, Daqi; Zhao, Xiulan; Yang, Juan; Li, Yan
• Is Part Of: Carbon. Volume 118(2017)
• Page Start: 485
• Page End: 492
• Publication Date: 2017-07
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2017.03.083
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: We developed a W/WOx -supported Ni catalyst for the diameter-controlled growth of single-walled carbon nanotubes (SWNTs) by chemical vapor deposition (CVD) valid for different substrates and broad growth conditions. The Ni nanoparticles anchored on W/WOx are well dispersed and show superior stability to high temperature. Under broad CVD windows of temperature and carbon feedstock supply conditions, SWNTs with narrow diameter distribution of ∼1.3 ± 0.1 nm can be steadily synthesized. This strategy also works well in the growth of surface lattice oriented SWNT arrays. The aligned SWNTs grown on ST-cut quartz show similar diameters to those obtained on silicon wafers. Graphical abstract: