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

Journal of Nanoanalysis

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 19 بهمن 1396

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.22034/jna.2018.545295.1044

نویسندگان

Majid Masoumi^{* 1}؛ Alimorad Rashidi²؛ Saeed Sadeghpour¹؛ Mohammad Mehdi Choolaei¹

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

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

چکیده

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 .

کلیدواژه‌ها

Graphene؛ CVD method؛ nano catalyst؛ MCM-41