Pd and ZnAl2O4 nanoparticles prepared by microwave-solvothermal method as catalyst precursors

Poly-N-vinyl-2-pyrrolidone (PVP) stabilized Pd nanoparticles and nanophase zinc aluminate spinel (ZnAl2O4) were prepared in different solvents by using microwave-assisted solvothermal method. The obtained materials were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), textural studies (porosity and surface area) and other techniques, and used as precursors of heterogeneous metal colloid catalysts. A Pd/ZnAl2O4 system was found to be promising catalyst of light hydrocarbon combustion.