Multi-wall carbon nanotubes have been successfully synthesized under arc-discharge plasma jet conditions from CLR which were produced as by-products in the process of coal liquefaction without any pretreatment or adding any other additional catalysts.

• 另外,煤的物理、化学性质以及催化剂、水、工作气氛对碳纳米管生成和产量均有影响,其中,煤自身具有粘结性是获得纳米碳管的必要条件。