Introduction on Heterogeneous Catalysis.- Model a catalyst.- Activity Patterns.- Adsorption-desorption.- Basic concepts.- Surface area and volume.- Catalysts preparation.- Variables influencing the final properties of the catalyst.- Structural analyses - x- ray diffraction.- Spectroscopy in the Infrared Region.- X-ray photoelectron spectroscopy (ESCA - XPS/ISS).- Electronic Microscopy: General and Specific Notions.- Nanostructured catalysts.- Kinetics and mechanisms.- Evaluation of Industrial Catalysts.