催化化学气相沉积法制备螺旋形多壁碳纳米管

Helical multiwalled carbon nanotubes (h-MWCNTs) synthesized by catalytic chemical vapor deposition

摘要: 以乙炔为碳源、FeMo/MgO催化剂为模板，采用催化化学沉积法制备了螺旋状多壁碳纳米管 (hs-MWCNTs)。其中FeMo/MgO模板，由作为发泡和助燃剂的柠檬酸燃烧而制成。FeMo/MgO催化剂的XRD谱图揭示其具有微晶的通性。应用SEM、TEM和Raman光谱剖析了合成的炭材料。SEM和TEM观察表明获得了hs-MWCNTs；Raman光谱的D峰和G峰确认了所获碳纳米管(CNTs)的结晶状态。结果表明：此法乃是合成直径10nm～20nm螺旋形多壁碳纳米管的最容易和简便方法。
- 碳纳米管 /
- 化学气相沉积 /
- 螺旋状多壁碳纳米管 /
- FeMoMgO催化剂
Abstract: Helical multiwalled carbon nanotubes (h-MWCNTs) were synthesized by a catalytic chemical vapor deposition method using acetylene as a carbon source and FeMo/MgO catalyst as a template, which was prepared by a combustion method using citric acid as a foaming and combustion additive. The XRD pattern revealed that the catalyst was crystalline. Furthermore, the synthesized carbon materials were characterized by SEM, TEM, and Raman spectroscopy, where SEM and TEM images showed the formation of thin h-MWCNTs and the Raman spectrum confirmed the crystalline characteristics of the CNTs. This is an easy and simple method to synthesize h-MWCNTs with diameter of 20-30nm.
- CNTs /
- Chemical vapor deposition /
- h-MWCNTs /
- FeMoMgO catalyst

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