Controlled growth of alpha-FeOOH nanorods by exploiting-oriented aggregation

R. Lee Penn, Jasmine J. Erbs, Djuna M. Gulliver

Research output: Contribution to journalArticlepeer-review

93 Scopus citations


Over the last decade, nanocrystal growth by oriented aggregation has been established as an important mechanism by which nanocrystals grow, unique-often symmetry defying-morphologies are produced, and defects are incorporated into initially defect-free nanocrystals. First, we demonstrate particle size control in the preparation of ferrihydrite nanoparticles by forced hydrolysis from homogeneous solution. Second, we demonstrate particle size control by exploiting oriented aggregation in the formation of goethite (alpha-FeOOH) nanorods from the ferrihydrite nanoparticles. Specifically, we show that the size of the goethite nanocrystals formed depends directly on the size of the precursor ferrihydrite nanoparticles. These results are expected to be broadly applicable to crystals, of any composition, produced by oriented aggregation.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalJournal of Crystal Growth
Issue number1
StatePublished - Jul 15 2006

Bibliographical note

Funding Information:
The authors acknowledge financial support from the National Science Foundation (CAREER-0346385; EAR-0311869; MRI EAR-0320641) and the University of Minnesota.


  • A1. Crystal morphology
  • A1. Crystallites
  • A1. Nanostructures
  • B1. Minerals
  • B1. Nanomaterials
  • B1. Oxides


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