Highly uniformed polyhedral γ-Fe(2)O(3) nanocrystals are prepared via a flame synthesis method by directly combusting the organic solution of iron-precursor. Systematic investigations reveal that the polyhedral γ-Fe(2)O(3) nanocrystals are 26-facet particles enclosed by six {100}, eight {111}, and twelve {110} facets, and these 26-facet γ-Fe(2)O(3) nanocrystals present excellent catalytic activities associated with their polyhedral structures.
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Zhao et al. (2009) studied this question.
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