http://dx.doi.org/10.1016/j.matlet.2012.04.106">
 

Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Large-scale and controllable synthesis of metal-free carbon nanofibers and carbon nanotubes over water-soluble Na2CO3

Language

English

Abstract

Previously, various carbon nanomaterials (CNMs) have been synthesized by different methods. All these methods required the use of catalysts that were based on transition metals or their alloys, and there were scabrous problems related to CNM purification. Using acetylene as reactant and Na 2CO 3 powder as catalyst, carbon nanofibers (CNFs) and carbon nanotubes (CNTs) were selectively synthesized in this study at acetylene decomposition temperature of 450 and 500 °C, respectively. Because Na 2CO 3 is water-soluble, it can be removed from the products through simple washing with water and the nanocarbon materials can be harvested undamaged in high purity. The approach is simple, inexpensive, and environment-friendly; it can be adopted for controlled production of high-purity CNFs or CNTs. © 2012 Elsevier B.V. All rights reserved.

Keywords

Carbon nanomaterials, Carbon nanotubes, Chemical vapor decomposition

Publication Date

2012

Source Publication Title

Materials Letters

Volume

81

Start Page

135

End Page

137

Publisher

Elsevier

ISSN (print)

0167577X

ISSN (electronic)

18734979

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