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姜开利

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期刊论文

A growth mark method for studying growth mechanism of carbon nanotube arrays

姜开利Kai Liu Kaili Jiang * Chen Feng Zhuo Chen Shoushan Fan *

Carbon 43(2005)2850-2856,-0001,():

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摘要/描述

A novel and simple growth mark method was developed to make marks during the growth process of carbon nanotube arrays. These marks can be read out under scanning electron microscope or optical microscope. Based on this method, the growth rates at different temperatures and under different acetylene partial pressures were measured, from which the activation energy and the order of reaction were determined. Based on our experimental results, the growth of carbon nanotube arrays in our experimental condition could not be diffusion-limited. The measured activation energy could possibly be attributed to the heterogeneous decomposition of acetylene over the catalyst particle. Furthermore the marked array with special segmental structure may be found some applications in the future.

版权说明:以下全部内容由姜开利上传于   2010年03月13日 14时14分05秒,版权归本人所有。

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