Growth Mechanism of Single-Walled Carbon Nanotubes on Iron-Copper Catalyst and Chirality Studies by Electron Diffraction

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	Growth Mechanism of Single-Walled Carbon Nanotubes on Iron-Copper Catalyst and Chirality Studies by Electron Diffraction
	M. S. He; B. L. Liu; A. I. Chernov; E. D. Obraztsova; I. Kauppi; H. Jiang; I. Anoshkin; F. Cavalca; T. W. Hansen; J. B. Wagner; A. G. Nasibulin; E. I. Kauppinen; J. Linnekoski; M. Niemela; J. Lehtonen
	2012
发表期刊	Chemistry of Materials
ISSN	0897-4756
卷号	24 期号:10 页码:1796-1801
摘要	Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using nanobeam electron diffraction. The results reveal that the growth yields nearly 90% semiconducting tubes, 45% of which are of the (6,5) type. The growth mechanisms as well as the roles of different components in the catalyst were studied in situ using environmental transmission electron microscopy and infrared spectroscopy. On the basis of the understanding of carbon nanotube growth mechanisms, an MgO-supported FeCu catalyst was prepared by impregnation, showing similar catalytic performance as the atomic layer deposition-prepared catalyst, yielding single-walled carbon nanotubes with a similar narrow chirality distribution.
部门归属	[he, maoshuai; kauppi, inkeri; linnekoski, juha; niemela, marita; lehtonen, juha] aalto univ, sch chem technol, dept biotechnol & chem technol, fi-00076 aalto, finland. [liu, bilu; jiang, hua; anoshkin, ilya; nasibulin, albert. g.; kauppinen, esko i.] aalto univ, nanomat grp, dept appl phys, fi-00076 aalto, finland. [liu, bilu; jiang, hua; anoshkin, ilya; nasibulin, albert. g.; kauppinen, esko i.] aalto univ, ctr new mat, sch sci, fi-00076 aalto, finland. [liu, bilu] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [chernov, alexander i.; obraztsova, elena d.] ras, am prokhorov gen phys inst, moscow 119991, russia. [cavalca, filippo; hansen, thomas w.; wagner, jakob b.] tech univ denmark, ctr electron nanoscopy, dk-2800 lyngby, denmark.;he, ms (reprint author), aalto univ, sch chem technol, dept biotechnol & chem technol, pob 16100, fi-00076 aalto, finland.;maoshuai.he@aalto.fi; esko.kauppinen@aalto.fi
关键词	Single-walled Carbon Nanotube Semiconducting Swnts Electron Diffraction Iron-copper Catalyst Preferential Growth Selective Synthesis Fe-cu Nanoparticles Spectroscopy Substrate Diameter Support Mgo
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59997
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. S. He,B. L. Liu,A. I. Chernov,et al. Growth Mechanism of Single-Walled Carbon Nanotubes on Iron-Copper Catalyst and Chirality Studies by Electron Diffraction[J]. Chemistry of Materials,2012,24(10):1796-1801.
APA	M. S. He.,B. L. Liu.,A. I. Chernov.,E. D. Obraztsova.,I. Kauppi.,...&J. Lehtonen.(2012).Growth Mechanism of Single-Walled Carbon Nanotubes on Iron-Copper Catalyst and Chirality Studies by Electron Diffraction.Chemistry of Materials,24(10),1796-1801.
MLA	M. S. He,et al."Growth Mechanism of Single-Walled Carbon Nanotubes on Iron-Copper Catalyst and Chirality Studies by Electron Diffraction".Chemistry of Materials 24.10(2012):1796-1801.