An effective trimetalic crystalline catalyst for sodium borohydride hydrolysis

Abstract

In this study, synthesis and application of Co0.92-xFe0.08Rux/TiO2 nano catalysts for the hydrolysis reaction of NaBH4 are reported. Several catalysts were synthesized with cobalt, iron and ruthenium salts by wet impregnation technique. Characterization of the catalysts was done by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and hydrolysis tests. Analysis results show that the precursors are strongly adhered on the surface with nono size alloy formation and catalyst can produce 18,800 mL H-2/min.g(cat) with 0.525 M of NaBH4 solution at 20 degrees C. Kinetic investigation reveals that the catalyst works according to zero-order kinetics and the activation energy is 34.5. Durability tests prove that the activation loss of which catalyst is maximum 37% after ten runs.