Production of carbon nano-tubes via CCVD method and their corrosion protection performance in epoxy based coatings

14th International Symposium on Advanced Materials

Raza, M.A.^1 ; Ghauri, F.A.^1 ; Awan, M.S.^2 ; Farooq, A.^1 ; Ahmad, R.^1

Department of Metallurgy and Materials Engineering, CEET, University of the Punjab, Lahore, Pakistan^1

Ibn-e-Sina Institute of Technology, Islamabad

H-11/4, Pakistan^2

关键词: Carbon nano-materials;    Carbon Nano-Particles;    Catalytic chemical vapor deposition;    Corrosion behavior;    Corrosion protection performance;    Cyclic polarization;    Open circuit potential;    Stainless steel 316L;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/146/1/012021/pdf
DOI  :  10.1088/1757-899X/146/1/012021

来源: IOP

【 摘 要 】

Good yield of carbon products was obtained by catalytic chemical vapor deposition (CCVD) technique using 100-500mg of ferrocene catalyst at temperature of 900 °C and acetylene flow rate of 150-200cc/min. The effects of amount of ferrocene, temperature and hydrocarbons precursors on the yield of carbon nanomaterial's was calculated and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) andenergy- dispersive X-ray spectroscopy (EDS). Good yield of carbon nanomaterials primarily consisted of carbon nanotubes (CNTs) and carbon nanoparticles was obtained. CNTs obtained after purification were dispersed in epoxy resin to produce composite coatings which were coated on stainless steel 316L. The coated stainless steel samples' corrosion behavior was studied using open circuit potential (OCP), cyclic polarization and electrochemical impedance spectroscopy (EIS) techniques. Results showed that epoxy coating containing 4 wt. % of CNTs offered improved corrosion resistance to stainless steel.