On the purification of CVD grown boron doped single-walled carbon nanotubes

被引：7

作者：

Ruiz-Soria, G. ^{[1
]}

Ayala, P. ^{[1
]}

Puchegger, S. ^{[1
]}

Kataura, H. ^{[2
,3
]}

Yanagi, K. ^{[4
]}

Pichler, T. ^{[1
]}

机构：

[1] Univ Vienna, Fac Phys, A-1090 Vienna, Austria

[2] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba 3058562, Japan

[3] Japan Sci & Technol Agcy, Core Res Evolut Sci & Technol, Kawaguchi, Saitama 3300012, Japan

[4] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2011年 / 248卷 / 11期

基金：

奥地利科学基金会;

关键词：

boron doping; nanotube; purification; Raman spectroscopy; single-walled carbon nanotubes;

D O I：

10.1002/pssb.201100139

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, we report a facile purification method of borondoped single-walled carbon nanotubes (SWCNTs) produced by high vacuum chemical vapor deposition (HV-CVD). The raw material was doped in situ during growth, with a B content below 0.5 at.%, estimated by means of X-ray photoelectron spectroscopy (XPS). Using ultracentrifugation combined with a mild acid solution pH neutralization, we have proved it is feasible to purify this material, which originally contains synthesis byproducts that differ from the typical catalytic remaining in pristine carbon nanotube samples produced with a similar method. The diameter size and distribution - previous and after purification - have been monitored by multifrequency Raman spectroscopy. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2504 / 2507

页数：4

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