Effect of synthesis temperature on the growth iron-filled carbon nanotubes as evidenced by structural, micro-raman, and thermogravimetric analyses

Abstract

Tubular structure and well dense of aligned carbon nanotubes (CNTs) were formulated using two-stage catalytic chemical vapor deposition apparatus. In this experiment, aligned CNT was synthesized in the range of 700900C temperatures with increment rate of 50C per sample. The aligned CNT properties were investigated via field emission scanning electron microscope, micro-Raman spectrometer and thermogravimetric analyzer. The experimental results showed that aligned CNT properties were highly dependent on synthesis temperature changes. The optimum temperature of higher crystallinity was observed at 800C synthesis temperature. However, the highest yield of nanotubes (99.99) was obtained at 900C synthesis temperature. Aligned CNT orientation was in a parallel form and packed together in orderly manner. The behaviors of aligned CNT will be discussed in detail in this paper. Copyright © 2012 M. S. Shamsudin et al.