Production of activated carbon from almond shelland its use as catalyst support material

In this thesis, activated carbon was synthesized from an almond shell by chemical activation method using microwave-assisted ZnCl2 activator. The effect of different parameters such as microwave gas medium, microwave power, microwave time, activation temperature, activation time and impregnation rate in activated carbon synthesis were investigated. The iodine number of the synthesized active carbons was determined and their characterization was performed with SEM, FTIR, BET surface area. BET surface area values of activated carbon without and with microwave support were determined as 50 m2 / g and 1057 m2 / g, respectively. The obtained activated carbon was used as support material for Co-Cu-B and Co-Mn-B catalysts used in hydrolysis of sodium borohydride. Characterization of synthesized catalysts was carried out by SEM, BET, EDX and XRD devices. The effects of parameters such as NaOH concentration, NaBH4 concentration, catalyst amount and ambient temperature were investigated in hydrolysis experiments of sodium borohydride. Hydrolysis kinetics was determined by using activated carbon-supported Co-Cu-B and Co-Mn-B catalysts in sodium borohydride hydrolysis. The kinetic degree of activated carbon-supported Co-Cu-B and Co-Mn-B catalysts was determined as 0.47 and 0.6, respectively. In the presence of activated carbon-supported Co-Cu-B and Co-Mn-B catalysts, the activation energy of sodium borohydride hydrolysis was found to be 49.96 kJ / mol and 31.4 kJ / mol, respectively.