The Ni-Fe-P alloy catalysts were deposited on the graphite matrix using electroless plating method,
the catalysts were also characterized and analyzed by scanning electron microscopy, X-ray diffraction, energy dispersive
X-ray. Using the heat treated Ni-Fe-P alloy as catalyst, thiophene as impurity, acetylene as the carbon source,
the carbon micro-coils were successfully prepared by chemical vapor deposition method under the reaction temperature
at 650℃. The study found that the resulting products are almost a regular dimension, morphology of the double helix
carbon fibers, the length of the fiber is millimeter, the helix diameter and the single fiber diameter are 2 to 3 μm,0． 5
to 0. 8 μm.