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

Bailin Chen, Huijian Jiang, Van Zhu, Arthur Cammers, John P. Selegue

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

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.

Original languageEnglish
Pages (from-to)4166-4167
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number12
DOIs
StatePublished - Mar 30 2005

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)
  • Biochemistry
  • Colloid and Surface Chemistry

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