▎ 摘　　要

Graphene is a 2D carbon allotrope that has attracted significant attention because its properties have a wide range of applications. Graphene was deposited on the polycrystalline nickel substrate with a dimension of 0.10 mm x 10 mm x 10 mm via thermal chemical vapor deposition (TCVD). The natural carbon source was obtained from a commercial palm oil as a carbon precursor. The D, G, and 2D bands described the vibration of graphitic layer and overtone of the D band at 1352, 1594, and 2716 cm(-1), respectively. The lowest G band full width at half maximum (FWHM) was 38.7 cm(-1) at 900 degrees C deposition temperature. In the x-ray diffraction (XRD) pattern, the FWHM of Ni (200) peak was 0.38 degrees. Raman spectroscopy, UV-vis spectrophotometry, atomic force microscopy, XRD, and field emission scanning electron microscopy characterized the synthesized graphene. Multilayer graphene was successfully synthesized from the palm oil via TCVD.