STUDI PENGARUH LAJU ALIR GAS ASETILEN DAN JENIS KATALIS PADA PROSES PERTUMBUHAN CARBON NANOTUBE (CNT) DENGAN METODE CATALYTIC CHEMICAL VAPOUR DEPOSITION (CCVD)

Abstract

Carbon nanotube is one of the nanotechnology that applicated in a variety of science such as electronics, chemistry and etc. In this research staked with system Catalytic Chemical Vapour Deposition (CCVD) process to syntheses Carbon nanotubes from acetylene gas using Co/Al2O3 and Fe/Al2O3 catalysts with catalyst heavy 0,3 gram,operation temperature 700 oC, flow rate of acetylene gas is 0,5 ; 1,0 ; 1,5 l/minute and flowrate of nitrogen gas is 1,5 l/minute. From analysis result by Scanning Electron Microscopy (SEM), CNT was formed MWNT type with difference diameter, where in order to faster flowrate of acetylene gas resultant diameter of CNT larger. Whereas weight of product carbon nanotube result turn inside out collating with flowrate of acetylene gas. The faster flowrate of acetylene gas, product weight syntheses result smaller. For Fe/Al2O3 catalyst was given CNT diameter larger compared with CNT syntheses used Co/Al2O3 catalysts.