{
    "protocol": "The palm oil waste is grounded and screened to obtain uniform particle size, afterward dried in a Force Air Convention Oven (Venticell Oven) at 105°C for 24 hours to ensure moisture escaped from the palm oil waste.1. Cut a silicon wafer disc to 1 cm x 1 cm using a diamond cutter. 2. Clean each silicon wafer and dry in a Forced Air Convention Oven for 1 hour. 3. Prepare a ZnCl2 solution with a molarity of approximately 0.4 M. 4. Airbrush the 0.4 M ZnCl2 solution onto the cleaned silicon wafer from a distance of 15 cm. 5. Dry the silicon wafer coated with ZnCl2 in a Drying Oven at 105°C for 1 hour to produce the ZnCl2 - Silicon Wafer, ready for use as a graphene growth template.A tubular quartz tube with a length of 124 cm, an internal diameter of 6.9 cm, and an outer diameter of 7.5 cm is placed in a Heating Furnace. The biochar produced and ZnSw is placed in an alumina boat with a length of 10.0 cm, a height of 1.8 cm, and a width of 4.0 cm, along with two different alumina boats (i) with dimensions 5.0 cm x 2.0 cm x 2.0 cm and (ii) with dimensions 5.0 cm x 0.5 cm x 1.0 cm positioned to cover the biochar and ZnSw. The furnace temperature is raised to 900°C at a heating rate of 10°C/min, maintaining a residence time of 35 min. Nitrogen gas is used as an inert gas to purge air from the pyrolizer at 500 mL/min until the pyrolizer cools down. In a continuation of the experiment, biochar and ZnSw are placed in another alumina boat of dimensions 9.0 cm x 1.5 cm x 1.0 cm, with a similar-sized alumina boat placed on top. The same heating parameters are applied in this second configuration."
}