Onion-like carbon nanoparticles generated by multiple laser irradiations on laser-ablated particles

被引：15

作者：

Inoue, Ayumi ^{[1
]}

Seto, Takafumi ^{[1
]}

Otani, Yoshio ^{[1
]}

机构：

[1] Kanazawa Univ, Dept Chem & Mat Engn, Kanazawa, Ishikawa 9201192, Japan

来源：

CARBON | 2012年 / 50卷 / 03期

关键词：

POLYHEDRAL PARTICLES; TRANSFORMATION; POWER;

D O I：

10.1016/j.carbon.2011.10.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A one-step process to synthesize onion-like carbon nanoparticles at room temperature under atmospheric pressure was developed. Periodic pulsed laser irradiation of carbon nanoparticles confined in the cavity of a carbon target rod induces drastic changes to their structure, changing them from amorphous to ordered concentric graphitic shells. The size distribution of gas-borne nanoparticles measured by a scanning mobility particle sizer showed the mean mobility diameter decreased from 83 nm to 18 nm as a result of restructuring of carbon agglomerates. Polyhedral and unagglomerated nanoparticles with shell structures composed of multiple graphene sheets were observed by a transmission electron microscopy. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1116 / 1122

页数：7

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