Fabrication of chlorine nitrogen co-doped carbon nanomaterials by an injection catalytic vapor deposition method

Abstract The synthesis of both covalently bonded chlorine and nitrogen-doped carbon materials (Cl-N-CNMs) has been little studied. In this paper we report on the investigation Cl-N-CNMs using a feedstock containing mixture dichlorobenzene (DCB), acetylene acetonitrile over Fe-Co/CaCO 3 catalyst an injection CVD method at 800 °C. By varying acetonitrile:DCB concentration ratio (66.7:33.3; 33.3:66.7 20:80), morphology physicochemical properties CNMs was varied. products contained amounts Cl (0.5%–1.2%) N (0.88%–1.47%) total amount increased with content in feed, as determined by XPS. A graphitic environment dominated feeds 33.3 66.7 vol.% DCB, whilst pyrrolic pure 80 DCB. feed promoted formation various shapes namely horn-shaped, spaghetti-like, pencil-like shapes, some open-ends others closed-ends TEM SEM studies. Although no direct correlation reactants used established, trends product were noted highly defected produced from had tubes similar open-ended horn-shaped less defects.