Comment:
3 L and 4.5 L CH3OH were adsorbed onto 1 ML K/Pd(100) at 90 K. The substrate was treated by Ar+ ion bombardment (Ep = 1 keV, j =2 microamperes/cm2), annealing (T = 1100 K), oxidation (1E-7 mbar of O2 , T= 800 K), and short annealing (T = 1200 K). Emission angle = 16 degrees.