Synthesis of Amorphous Carbon From Bio-Products by Drying Method

Amorphous carbon (a-C) has extensively been studied in the last two decades due to many superior properties. Amorphous carbon was successfully prepared by carbonization of organic compounds exposed up to 200 degrees C. Organic compounds that used in this research were coconut sap, lontar palm sap and their derivatives. The X-ray diffraction pattern shows that carbonization of organic compounds produce amorphous carbon phase at 2 theta =20 degrees. The infrared absorption in the region from 500 to 4000 cm(-1) were resolved into several peaks, which were assigned to C-H, C=C, C-O, C=O and O-H. Four point probe method was also used to measure the conductivity and band gap of each material, resulting in 1.73 - 29.6 S/m and 0.08 - 0.49 eV respectively.