CoPt/CeO2 catalysts for the growth of narrow diameter semiconducting single-walled carbon nanotubes

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 先进材料研究部 > 姚亚刚团队

	CoPt/CeO2 catalysts for the growth of narrow diameter semiconducting single-walled carbon nanotubes
	Tang, L(唐磊); Li, TT(李涛涛); Li, CW(李朝威); Ling, L(凌琳); Zhang, K(张凯); Yao, YG（姚亚刚）
刊名	NANOSCALE
	2015
卷号	7 期号:46 页码:6
通讯作者	Yao, YG (姚亚刚)
英文摘要	For the application of single-walled carbon nanotubes (SWNTs) in nanoelectronic devices, effective techniques for the growth of semiconducting SWNTs (s-SWNTs) with a specific diameter are still a great challenge. Herein, we report a facile strategy for the selective growth of narrow diameter distributed s-SWNTs using CoPt/CeO2 catalysts. The addition of Pt into a Co catalyst dramatically reduces the diameter distributions and even the chirality distributions of the as-grown SWNTs. Oxygen vacancies that are provided by mesoporous CeO2 are responsible for creating an oxidative environment to in situ etch metallic SWNTs (m-SWNTs). Atomic force microscope (AFM) and Raman spectroscopy characterizations indicate a narrow diameter distribution of 1.32 +/- 0.03 nm and the selective growth of s-SWNTs to 93%, respectively. In addition, electronic transport measurements also confirm that the I-on/I-off ratio is mainly in the order of similar to 10(3). This work provides an effective strategy for the facile fabrication of narrow diameter distributed s-SWNTs, which will be beneficial to fundamental research and the broad application of SWNTs for future nanoelectronics.
收录类别	SCI
语种	英语
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/3451]
专题	苏州纳米技术与纳米仿生研究所_先进材料研究部_姚亚刚团队
推荐引用方式 GB/T 7714	Tang, L,Li, TT,Li, CW,et al. CoPt/CeO2 catalysts for the growth of narrow diameter semiconducting single-walled carbon nanotubes[J]. NANOSCALE,2015,7(46):6.
APA	Tang, L,Li, TT,Li, CW,Ling, L,Zhang, K,&Yao, YG.(2015).CoPt/CeO2 catalysts for the growth of narrow diameter semiconducting single-walled carbon nanotubes.NANOSCALE,7(46),6.
MLA	Tang, L,et al."CoPt/CeO2 catalysts for the growth of narrow diameter semiconducting single-walled carbon nanotubes".NANOSCALE 7.46(2015):6.