Stability of supported organometallic clusters probed by a mass-sensitive TEM technique

A. Singhal, J. Murray Gibson, M. M.J. Treacy, P. D. Lane, J. R. Shapley

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Using a refined quantitative TEM technique, we measure the relative mass of individual organometallic rhenium clusters on a graphite support. We observe that whereas 6-Re atom species preserve integrity on precipitation from solution, fragmentation and sintering occur in 7- and 8-Re atoms cluster species. These organometallics are candidates as catalytic materials. The technique is based on high-angle dark-field scanning transmission electron microscope (STEM) imaging. The emphasis in this analysis is on using very high angles of scattering to suppress coherence effects from these clusters and on reliably measuring their relative experimental elastic scattering cross sections.

Original languageEnglish (US)
Pages (from-to)6385-6388
Number of pages4
JournalJournal of physical chemistry
Issue number16
StatePublished - Apr 18 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • Physical and Theoretical Chemistry


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