Bright field and hollow cone dark field electron microscopy of palladium catalysts

L. A. Freeman, A. Howie, Michael Treacy

Research output: Contribution to journalArticle

24 Scopus citations


The usefulness of hollow cone dark field imaging for the study of Pd catalyst particles on γ‐alumina substrates is investigated. By varying the depth of the specimen in the objective lens field, different Bragg reflections can be conveniently selected. Typically, about 70% of the particles appear in either the 111 or 200 Bragg reflections. Rather more particles can be visible in bright field because of other Bragg reflections as well as absorption effects. Size distributions in bright field and dark field are compared. 1977 Blackwell Science Ltd

Original languageEnglish (US)
Pages (from-to)165-178
Number of pages14
JournalJournal of Microscopy
Issue number2
StatePublished - 1977
Externally publishedYes


ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

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