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Monitoring the growth of polyoxomolybdate nanoparticles in suspension by flow field-flow fractionation.

Author
Abstract
:

We follow the evolution of polyoxomolybdate nanoparticles in suspensions derived from the keplerate (NH4)42[MoVI72MoV60O372(CH3CO2)30(H2O)72].ca..300H2O.ca..10CH3CO2NH4 ({Mo132}) by flow field-flow fractionation (FlFFF) to monitor the particle-size distribution in situ, atomic force and high-resolution transmission electron microscopy (AFM, SEM, and HRTEM) to confirm particle sizes, inductively coupled plasma-optical emission spectrometry (ICP-OES) to determine the Mo content of the FlFFF-separated fractions, and UV/visible spectroscopy to confirm the identity of the species in suspension. We observe the formation of 3-75-nm polyoxomolybdate particles in suspension and the dynamic growth of {Mo132} crystals.

Year of Publication
:
2005
Journal
:
Journal of the American Chemical Society
Volume
:
127
Issue
:
12
Number of Pages
:
4166-7
Date Published
:
2005
ISSN Number
:
0002-7863
URL
:
https://doi.org/10.1021/ja045067r
DOI
:
10.1021/ja045067r
Short Title
:
J Am Chem Soc
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