ABSTRACT
Phosphorous-doped carbon nanotubes (PCNTs) was prepared via two-step methodology employing
chemical vapor deposition, by using available starting materials and catalyst. First, CNTs was produced
from acetylene gas at 750 C and then, PCNTs have been prepared with total yield of 44% by recooking of
the prepared CNT with Ph3P at 600 C. The product was characterized with FESEM, TEM and EDS analyses,
which confirmed its nanotube shape and the presence of phosphorous atom. The high thermal stability of
the product was obtained from TGA analysis, showing only 16.5% weight loss up to 890 C. The Raman
spectrum of the product showed the ID/IG ration equal to 0.84. Moreover, the catalytic potency of the
product has been examined in ORR electrochemical reaction using CV and LSV diagrams. The results
confirmed appropriate catalytic activity and high stability of the product for this process.