Chirality-Dependent Reactivity of Individual Single-Walled Carbon Nanotubes

IMR OpenIR

	Chirality-Dependent Reactivity of Individual Single-Walled Carbon Nanotubes
	B. L. Liu; H. Jiang; A. V. Krasheninnikov; A. G. Nasibulin; W. C. Ren; C. Liu; E. I. Kauppinen; H. M. Cheng
	2013
发表期刊	Small
ISSN	1613-6810
卷号	9 期号:8 页码:1379-1386
摘要	Electronic characteristics of a single-walled carbon nanotube (SWCNT) strongly depend on minor variations in its atomic arrangement, specifically chirality. Therefore, precise control over nanotube chirality is highly desired for their application. Theoretically, SWCNTs with different structures have different chemical reactivities, which can be further used for their chirality selection. Here, an approach is developed to examine the relationship between the chirality of SWCNTs and their intrinsic chemical reactivity. By oxidizing individual, high-quality, suspended SWCNTs and using the nanobeam electron diffraction technique, it is shown that the reactivity of SWCNTs to O2 is intricately related to their diameters, metallicity, and chiral angles. In particular, even minor differences in chiral angles lead to big differences in their reactivity, which concords with first-principles calculations. Based on the experimental observations, a chirality-dependent reactivity sequence is constructed for SWCNTs. These findings shed light on effective chiral separation of SWCNTs for their practical application in many fields.
部门归属	[liu, bilu ; jiang, hua ; nasibulin, albert g. ; kauppinen, esko i.] aalto univ, sch sci, nanomat grp, dept appl phys, fi-00076 espoo, finland. [liu, bilu ; ren, wencai ; liu, chang ; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [krasheninnikov, arkady v.] univ helsinki, dept phys, helsinki 00014, finland. [krasheninnikov, arkady v.] aalto univ, dept appl phys, espoo 00076, finland. ; kauppinen, ei (reprint author), aalto univ, sch sci, nanomat grp, dept appl phys, fi-00076 espoo, finland. ; esko.kauppinen@aalto.fi ; cheng@imr.ac.cn
关键词	Carbon Nanotubes Electron Diffraction Chirality Chemical Reactivity First-principles Calculations Total-energy Calculations Wave Basis-set Electronic-structure Raman-spectroscopy Growth Graphene Catalyst Purification Separation Efficiency
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71355
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. L. Liu,H. Jiang,A. V. Krasheninnikov,et al. Chirality-Dependent Reactivity of Individual Single-Walled Carbon Nanotubes[J]. Small,2013,9(8):1379-1386.
APA	B. L. Liu.,H. Jiang.,A. V. Krasheninnikov.,A. G. Nasibulin.,W. C. Ren.,...&H. M. Cheng.(2013).Chirality-Dependent Reactivity of Individual Single-Walled Carbon Nanotubes.Small,9(8),1379-1386.
MLA	B. L. Liu,et al."Chirality-Dependent Reactivity of Individual Single-Walled Carbon Nanotubes".Small 9.8(2013):1379-1386.