Morphological dependence of passive epitaxial oxide films on nanoparticles of iron

摘要

@@ Nanoparticles of iron passivated by thin oxide films are {110} rhombic dodecahedra truncated by {100} planes with various degree of truncation.The degree of truncation is defined as the ratio of the edge length of the truncated part to the full edge length of the rhombic dodecahedron.Uyeda and coworkers have shown that nanoparticles with low degree of truncation are bounded by six small {100} and twelve large {110} facets while nanoparticles with high degree of truncation are bounded by large {100} and small {110} facets[1].