Slurry impregnation method was employed to prepare a catalyst slurry with nano-nickel powder,nano-SiO2,and phenolic resin.This catalyst layer was introduced onto the surface of a 2-D carbon fiber cloth to generate carbon nanofibers (CNFs) in situ by chemical vapor deposition (CVD).When he catalyst slurry contained 1.3wt% ferrocene,lace-like CNFs were obtained on the surface of the 2-D carbon fiber cloth.SEM,TEM and Raman Spectroscopy were used to investigate the morphology of the CNFs,and the microstructural differences before and after the introduction of impurities were analyzed and compared.In addition,the growth mechanism of lace CNFs was analyzed based on diffusion and solid-liquid-gas (V-L-S) growth models.The results showed that Fe was the key factor affecting the formation of lace.
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