High-resolution transmission electron microscopy study of epitaxial passive films on nanocubes of chromium

J. C. Rao, Xixiang Zhang, B. Qin, K. K. Fung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A significant proportion of the nanoparticles of chromium prepared by plasma gas condensation are nanocubes. We have found by electron diffraction and high-resolution transmission electron microscopy that each nanocube of chromium is enclosed by an epitaxial passive oxide film. The oxide film has been identified as fcc Cr2O3 with a lattice parameter of 0.407 nm. This cubic passive oxide, found in nanocubes of chromium that have remained unchanged in water for more than 4 years, may have important implications for protective oxide films involving chromium.

Original languageEnglish (US)
Pages (from-to)395-401
Number of pages7
JournalPhilosophical Magazine Letters
Volume83
Issue number6
DOIs
StatePublished - Jun 1 2003

ASJC Scopus subject areas

  • Condensed Matter Physics

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