This catalyst was synthesized using a simplified three-step procedure based on our previous work . In 80ml of anhydrous ethanol, dissolve cobalt (II) nitrate hexahydrate and chitosan at a molar ratio of 1:1. After agitating and aging the combination for four hours at 70 °C and 300 rpm to produce a rosered suspension, the mixture was placed in an overnight drying oven at 100 °C to eliminate any remaining solvent. It was pounded in a mortar into a powder once it completely dried.