Iron oxide green synthesis from peanut leaf extract and investigation of the use of sodium borohydride as a catalyst support material in the hydrolysis

Energy demand increases with the increasing population. Generally, this energy is provided from fossil fuels. There has been a serious increase in the demand for renewable energies recently due to the limited reserves of fossil fuels and their harm to the environment. Hydrogen energy is the most advantageous among renewable energies because it is obtained as by-product water when used. Hydrogen is transported by many different methods. Sodium borohydride is a good hydrogen carrier. When obtaining hydrogen from the hydrolysis of sodium borohydride, noble metals are generally used. Noble metals are rare in nature and very expensive. For this reason, catalysts or noble metals, which are more abundant in nature and cheaper, are used as support materials. In this study, iron oxide nanoparticles (FeO) were synthesized from the green leaf extract of Siirt pistachio by the green synthesis method and were used as support material for Ru and Co nanoparticles to be used as catalysts in sodium borohydride hydrolysis. The structure and characterization of the synthesized nanoparticle catalysts were carried out with SEM, EDX, XRD and TEM devices. The effects of NaOH concentration, NaBH4 concentration, catalyst amount and temperature parameters on sodium borohydride hydrolysis were examined. Kinetics of sodium borohydride hydrolysis n. The degree was determined by the kinetic model. It has been determined that FeO supported Ru and Co catalysts have high activities in sodium borohydride hydrolysis.