4.7 Article

Entrapment of metastable nanocrystals by polyoxometalates

Journal

CHEMICAL COMMUNICATIONS
Volume 59, Issue 29, Pages 4364-4367

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc00821e

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In this study, entirely inorganic polyoxometalate cluster-anion ligands are used to trap and impart heat resistance to metastable metal-oxide based NCs. This is demonstrated by trapping 6-line ferrihydrite NCs, which are intermediates in the spontaneous conversion of beta-FeOOH to hematite (alpha-Fe2O3). The results suggest that polyoxometalate ligation may be a general method for stabilizing metastable phases as the cores of entirely inorganic macro-anion like complexes.
Entirely inorganic polyoxometalate cluster-anion ligands are herein used to entrap and impart heat resistance to metastable metal-oxide based NCs. This is demonstrated by trapping 6-line ferrihydrite NCs that form as intermediates in the spontaneous conversion of beta-FeOOH to hematite (alpha-Fe2O3). The results suggest that polyoxometalate ligation may prove to be a general method for stabilizing metastable phases as the cores of entirely inorganic macro-anion like complexes.

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