Quantitative determination of hydrogen absorption by Pd cluster-assembled films using a quartz crystal microbalance

► Pd cluster assembled films with different thicknesses are made and characterized. ► Quartz crystal microbalance is used to quantification the hydrogen amount absorbed. ► Hydrogen absorption/adsorption by Pd film is explained. ► Absorption expressed in H/Pd mass ratio is given for all Pd films. ► This complements H2 absorption on metal cluster films using optical techniques.