Electron microscopy study of delamination in dispersions of the perovskite-related layered phases K[Ca2Nan-3NbnO3n+1]: Evidence for single-layer formation

Michael Treacy, S. B. Rice, A. J. Jacobson, J. T. Lewandowski

Research output: Contribution to journalArticle

198 Citations (Scopus)

Abstract

Intercalation of basic surfactant molecules into the layered perovskites H[Ca2Nan-3NbnO3n+1], n = 3-5, can be used to cause spontaneous exfoliation of the structure into thin sheets that form stable dispersions in a polar solvent. The extent of exfoliation has been determined by examining Rutherford scattered intensities into a high-angle annular dark-field detector in a scanning transmission electron microscope. It is shown that for n ≤ 5, the layered perovskites can be exfoliated to form single layers. Exfoliation is easiest for the n = 3 and 4 materials.

Original languageEnglish (US)
Pages (from-to)279-286
Number of pages8
JournalChemistry of Materials
Volume2
Issue number3
StatePublished - 1990
Externally publishedYes

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Intercalation
Dispersions
Delamination
Surface-Active Agents
Perovskite
Electron microscopy
Surface active agents
Electron microscopes
Detectors
Scanning
Molecules
perovskite

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Electron microscopy study of delamination in dispersions of the perovskite-related layered phases K[Ca2Nan-3NbnO3n+1] : Evidence for single-layer formation. / Treacy, Michael; Rice, S. B.; Jacobson, A. J.; Lewandowski, J. T.

In: Chemistry of Materials, Vol. 2, No. 3, 1990, p. 279-286.

Research output: Contribution to journalArticle

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