Fe-, Co-, Ni-, and Cu-supported zeolite (FAU) crystals were prepared respectively to synthesize carbon nanotubes (CNTs) using catalytic chemical vapor deposition (CCVD) method. To avoid the massive oxidation of metal elements which can be harmful to the stabilization of the zeolite crystals, Fe-, Co-, Ni-, and Cu-supported zeolite was calcined under N2 to obtain the re quired catalysts. CNT synthesis was performed under different conditions by varying the synthesis parameters, such as the catalysts, reaction temperature, reaction duration period, and carbon precursor feeding rate. The optimal reaction conditions for CNT synthesis was examined by comparing the quality of the CNTs synthesized under a range of conditions.

Keywords: Carbon nanotubes, Chemical vapor deposition, Zeolite, Ion-exchange, Catalyst.