Grants and Contracts Details
Description
We propose to develop new applications for Field-Flow Fractionation in the
separation and analysis of small particles. Field-Flow Fractionation provides highresolution
separation and size analysis of insoluble, particulate materials. 1 FFF combines
laminar flow hydrodynamics with a physical field imposed at a 90° angle to the flow. Most
previous applications of FFF involve nearly spherical particles, including ceramics,
colloidal silica, protein aggregates, etc. In particular, we will use Flow Field-Flow
Fractionation, FIFFF, to analyze (1) carbon nanotubes, with aspect ratios in the range of
1000:1; (2) carbonaceous soot. We will also carry out exploratory FFF work on (3)
laminar materials such as MOS2and its intercalation compounds; (4) usually-laminar
materials in nanofiber form; and (5) semiconductor nanoparticles. The size-classed
fractions produced with each analysis will be subjected to electron microscopy, mass
spectrometry and other subsequent analyses as appropriate. The project is collaborative
between Prof. John P. Selegue, University of Kentucky, and Dr. Vahid Majidi, Los
Alamos National Laboratory. Carbon nanotubes will be supplied by collaborators at the
University of Kentucky, including Prof. Robert Haddon (Chemistry, Physics and MRSEC
for Advanced Carbon Materials), Dr. Aparao Rao (Physics and Center for Applied Energy
Research) and Dr. David Jacques (CAER).
Status | Finished |
---|---|
Effective start/end date | 8/15/00 → 8/14/04 |
Funding
- Department of Energy: $225,000.00
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