Ordoñez-Casanova Elsa G, Román-Aguirre Manuel, Aguilar-Elguezabal Alfredo, Espinosa-Magaña Francisco
Laboratorio Nacional de Nanotecnología, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31109 Chihuahua, Chih., Mexico.
Materials (Basel). 2013 Jun 20;6(6):2534-2542. doi: 10.3390/ma6062534.
Carbon nanotubes with single and few walls are highly appreciated for their technological applications, regardless of the limited availability due to their high production cost. In this paper we present an alternative process that can lead to lowering the manufacturing cost of CNTs of only few walls by means of the use of the spray pyrolysis technique. For this purpose, ferrocene is utilized as a catalyst and aliphatic alcohols (methanol, ethanol, propanol or butanol) as the carbon source. The characterization of CNTs was performed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The study of the synthesized carbon nanotubes (CNTs) show important differences in the number of layers that constitute the nanotubes, the diameter length, the quantity and the quality as a function of the number of carbons employed in the alcohol. The main interest of this study is to give the basis of an efficient synthesis process to produce CNTs of few walls for applications where small diameter is required.
单壁和少壁碳纳米管因其技术应用而备受青睐，尽管由于其高生产成本导致可用性有限。在本文中，我们提出了一种替代工艺，该工艺可通过使用喷雾热解技术降低仅具有少数壁的碳纳米管的制造成本。为此，二茂铁用作催化剂，脂肪醇（甲醇、乙醇、丙醇或丁醇）用作碳源。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）对碳纳米管进行表征。对合成的碳纳米管（CNT）的研究表明，构成纳米管的层数、直径长度、数量和质量随醇中使用的碳数而存在重要差异。本研究的主要目的是为生产小直径所需应用的少壁碳纳米管提供高效合成工艺的基础。
