Abstract

We report of few wall carbon nanotubes (FWNT) growth by methane/acetylene decomposition over bimetallic Fe-Mo catalyst with MgO support. Our transmission electron microscopy investigation (TEM) shows high purity and narrow diameter distribution of grown nanotubes. The phase analysis of CNT product was performed by X-ray and Mossbauer techniques.

Highlights

  • Carbon nanotubes [carbon nanotube (CNT)] due to their incredible properties have attracted scientific and practical interest for almost 20 years [1]

  • We describe the developed technological approach for a simple and efficient few-wall carbon nanotube (FWNT) synthesis

  • The as-synthesized product was studied by transmission electron microscopy [TEM] (Figure 2)

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Summary

Introduction

Carbon nanotubes [CNTs] due to their incredible properties have attracted scientific and practical interest for almost 20 years [1]. High electrical and thermal conductance, striking mechanical strength, and an especially unique chirality-dependence electronic structure make CNTs one of the most promising alternatives to replace some of today’s materials used in microelectronics manufacturing. Due to an enormous field enhancement factor and high conductivity, CNTs are perfect sources for electron emission [2]. Tremendous numbers of attempts have been made to use carbon nanotube arrays as the field-emission cathodes [FECs] [3]. Single-wall carbon nanotubes [SWNT] provide a large field enhancement factor, low threshold voltage, and high emission currents, but the substantial degradation of emission currents is a serious bottleneck for the. Metal alloys such as Co-Ni [7], Fe-Co [8,9], Fe-Mo [6,10], and Co-

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