Positive pressure assisted-arc discharge synthesis of single-walled carbon nanohorns

被引：13

作者：

Nan, Yanli ^{[1
]}

Li, Bo ^{[1
]}

Zhang, Peng ^{[1
]}

Shen, Sicong ^{[1
]}

Song, Xiaolong ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 180卷

关键词：

Carbon materials; Nanoparticles; Arc discharge; Positive pressure; PLASMA;

D O I：

10.1016/j.matlet.2016.05.100

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Catalyst-free, high-yield (kilogram-scale) and high-purity (>95%) synthesis of dahlia flower and "budlike" single-walled carbon nanohorns (SWCNHs) has been achieved via DC arc discharge under high pressures of Ar gas up to 0.35 MPa. In contrast, the mean size (100 nm) of SWCNH particle was twice as large as the counterpart in the literature via arc discharge. A new growth mechanism is proposed rationally to explain the mass production of SWCNHs under positive pressures, the growth mechanisms of SWCNHs rely mainly on the concentration of carbon clusters, rather than the temperature gradient of arc zone. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：313 / 316

页数：4

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