Comparison of AFM and HRTEM to determine the metal particle morphology and loading of an Au/TiO2 catalyst Academic Article uri icon


  • Atomic force microscopy (AFM) has been used to study the morphology of an ultrafine gold-on-titania catalyst. By using TappingMode AFM (TMAFM) and SuperSharp silicon probes to minimize tip radius artifacts, we determined values for the average Au particle diameter and the gold loading in good agreement with high-resolution transmission electron microscopy (HRTEM) results. These results demonstrate the ability of AFM to characterize real supported metal catalysts with small metal particles (<5 nm) and low metal loadings, achieving resolution comparable to HRTEM, but in the ambient environment.

published proceedings


author list (cited authors)

  • Dokou, E., Stangland, E. E., Andres, R. P., Delgass, W. N., & Barteau, M. A.

citation count

  • 12

complete list of authors

  • Dokou, E||Stangland, EE||Andres, RP||Delgass, WN||Barteau, MA

publication date

  • December 2000