Surface atomic resolution microscopy of sulfated-zirconia and Fe/Mn promoted sulfated zirconia

M. Benaissa, J. G. Santiesteban, G. Diaz, M. Jose-Yacaman

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


By using high-resolution transmission electron microscopy (HRTEM), it was possible to elucidate edge-on views of the surface atomic structure of sulfated zirconia and Fe/Mn promoted sulfated-zirconia catalysts. The results indicate that the presence of sulfate groups and Fe/Mn species not only stabilizes the tetragonal zirconia phase, but also induces the formation of well-faceted small zirconia crystallites. The shape of the sulfated zirconia crystallites exhibits two types of surfaces: long smooth and relatively few short rough planes, with the long smooth (110) plane being clearly predominant. HRTEM images of this plane revealed the presence of an adsorbed sulfate layer. On the other hand, the presence of Fe and Mn species were apparent on the (001) and (110) surfaces of zirconia particles.

Original languageEnglish (US)
Pages (from-to)267-272
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 3 1996Dec 5 1996

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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