液化石油气燃烧火焰制备一维碳纳米材料

本文利用民用液化石油气为碳源，在经过预处理的低碳钢和含Ni合金钢等基板上成功地制备出“空心”碳纳米管(CNTs)和“实心”碳纳米纤维(CNFs)等一维碳纳米材料。实验发现基板预处理对一维碳纳米材料的制备起着决定性的作用，如：机械研磨预处理时很难制备出一维碳纳米材料，而采用涂覆和电镀处理则很容易获得一维碳纳米材料。利用场发射枪高分辨扫描电镜(SEM)、透射电镜(TEM)和激光拉曼光谱(RS)等技术对碳纳米材料的结构进行了表征。从本实验可以预见，制备一维碳纳米材料将变得更简单，更经济。

Synthesis of one-dimension carbon nanomaterials from liquefied petroleum gas (LPG) flame

One-dimension carbon nanomaterials (ODCNMs) including carbon nanotubes (CNTs) and carbon nanofibers (CNFs) were successfully synthesized from regular liquefied petroleum gas (LPG) flame on the low carbon mild steel and Ni-contained alloys substrates. It was found that pretreatment of the surfaces of the substrates played a key role for synthesizing ODCNMs, i.e., it is difficult to get the ODCNMs when using polished substrates, however, the ODCNMs could grow vigorously upon the Ni(NO_3)_2 coated and nanocrystalline plated substrates. The combustion nanomaterials were characterized by field emission high resolution scanning electron microscope (SEM), transmission electron microscope (TEM) and laser Raman spectrometer(RS). It is expected that the LPG flame could provide a much simpler and more economic approach for mass-production of one-dimension carbon nanomaterials.