Radial deformation of single-walled carbon nanotubes on quartz   substrates and the resultant anomalous diameter-dependent reaction   selectivity

doi:10.1007/s12274-015-0811-1

CORC > 北京大学 > 化学与分子工程学院

	Radial deformation of single-walled carbon nanotubes on quartz substrates and the resultant anomalous diameter-dependent reaction selectivity
	Yang, Juan ; Liu, Yu ; Zhang, Daqi ; Wang, Xiao ; Li, Ruoming ; Li, Yan
刊名	NANO RESEARCH
	2015
关键词	single-walled carbon nanotubes reaction selectivity interaction quartz substrate radial deformation THERMAL-EXPANSION ELECTRON LOCALIZATION RAMAN-SPECTROSCOPY CHARGE-TRANSFER FUNCTIONALIZATION STRAIN TRANSITION CRYSTAL GROWTH ENERGY
DOI	10.1007/s12274-015-0811-1
英文摘要	Owing to the unique conjugated structure, the chemical-reaction selectivity of single-walled carbon nanotubes (SWNTs) has attracted great attention. By utilizing the radial deformation of SWNTs caused by the strong interactions with the quartz lattice, we achieve an anomalous diameter-dependent reaction selectivity of quartz lattice-oriented SWNTs in treatment with iodine vapor; this is distinctly different from the widely reported and well accepted higher reaction activity in small-diameter tubes compared to large-diameter tubes. The radial deformation of SWNTs on quartz substrate is verified by detailed Raman spectroscopy and mappings in both G-band and radial breathing mode. Due to the strong interaction between SWNTs and the quartz lattice, large-diameter tubes present a larger degree of radial deformation and more delocalized partial electrons are distributed at certain sidewall sites with high local curvature. It is thus easier for the carbon-carbon bonds at these high-curvature sites on large-diameter tubes to break down during reaction. This anomalous reaction activity offers a novel approach for selective removal of small-bandgap large-diameter tubes.; Ministry of Science and Technology of China [2011CB933003]; National Natural Science Foundation of China [21125103, 91333105, 11179011]; Beijing Higher Education Young Elite Teacher Project [YETP0007]; SCI(E); ARTICLE; yanli@pku.edu.cn; 9; 3054-3065; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416753]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yang, Juan,Liu, Yu,Zhang, Daqi,et al. Radial deformation of single-walled carbon nanotubes on quartz substrates and the resultant anomalous diameter-dependent reaction selectivity[J]. NANO RESEARCH,2015.
APA	Yang, Juan,Liu, Yu,Zhang, Daqi,Wang, Xiao,Li, Ruoming,&Li, Yan.(2015).Radial deformation of single-walled carbon nanotubes on quartz substrates and the resultant anomalous diameter-dependent reaction selectivity.NANO RESEARCH.
MLA	Yang, Juan,et al."Radial deformation of single-walled carbon nanotubes on quartz substrates and the resultant anomalous diameter-dependent reaction selectivity".NANO RESEARCH (2015).