The Growth of Multilayer Graphene over MCM-41 by CVD Method in Atmospheric Pressure: metal–Free Nanocatalyst

Document Type: Original Research Paper

Authors

1 Petroleum Refining Division, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box 14665-1998, Tehran, Iran.

2 Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box 14665-1998, Tehran, Iran.

Abstract

Graphene films were fabricated over synthesized MCM-41 nanocatalyst by chemical vapor deposition method, and the reaction was carried in atmospheric pressure at 750˚C . Acetylene gas used as carbon precursor and the synthesis reaction took place at hydrogen atmosphere . Mesoporous MCM-41 was synthesized at room temperature using wet chemical method . The synthesized metal free catalyst was characterized by XRD and N2 adsorption isotherms. The catalytically synthesized graphene layers were characterized by Raman spectroscopy, scanning electron microscopy ( SEM ), and transmission electron microscopy ( TEM ) . The results indicated the favorable effect of MCM-41 with high BET surface area ( 908.76 m2/g ) as an active metal free nanocatalyst for fabricating graphene layers with high level of purity and homogeneity . Because of simplicity, easy purification, and high yield of graphene synthesis offered by this method , it is possible to use it in larger scales .

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