Abstract:

Carbon nanotubes (CNTs) have attracted much interest of scientists for their extraordinary structure and properties. Recently much more efforts were devoted to synthesizing CNTs and understanding their insulating, semimetallic, or metallic behavior. In the present work, the perovskite oxides were used as catalyst precursor. We obtained bulk growth of high quality CNTs by catalytic decomposition of CH₄ or CO using either fixed bed or fluidized bed reactor.