Characterization of Pt microcrystals using high resolution electron microscopy

N. J. Long, R. F. Marzke, M. McKelvy, W. S. Glaunsinger

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Small colloidal particles of platinum have been produced with and without a protective agent (polyvinylpyrrolidone), and have been studied by high resolution electron microscopy. Initially, the protected particles have been found to be single crystals in the size range 5-30 Å. After continued beam exposure, the protective coating's effect is lost and the particles coalesce, forming both larger single crystals and multiply-twinned crystals. In contrast, a sample of the unprotected particles shows extensive initial linking and twinning, but no further beam-induced agglomeration.

Original languageEnglish (US)
Pages (from-to)15-20
Number of pages6
JournalUltramicroscopy
Volume20
Issue number1-2
DOIs
StatePublished - 1986

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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