Characterization & Properties

Characterization & Properties

Characterization & Properties

Characterization of Dune Nanosilver (NS20D)

Dune Sciences recognizes the importance of producing quality materials that are repeatable and reproducible as well as the importance of understanding the physical and chemical properties, especially for nanoscale materials.   Accordingly, we have spent a significant effort towards establishing methodologies and techniques to ensure that the materials we meet our quality standards. Among the different analytical methods we routinely use are: thermogravimetric analysis (TGA), electron microscopy, UV-Vis absorption spectroscopy, NMR, FTIR, solids content, x-ray photoelectron spectroscopy, and dynamic light scattering among others. Much of this analysis is performed at the Center for Advanced Materials Characterization in Oregon (CAMCOR).   The figures below show some representative data from the analyses.

fig_electron_micrographs

Transmission electron micrographs of NS20D

fig_absorption

UV/Vis Absorption spectroscopy

fig_xray

X-ray Photoelectron Spectroscopy

Physical/Chemical Properties of NS20D-1K aqueous suspensions.

Property Value
pH pH 7; neutral
Viscosity 1.002 cp
Boiling point 100C
Thermal decomposition
temperature
250C (to lose emulsifier)
Shelf life >5 yrs.
Photosensitivity None

Comments are closed.

Dune Science
1900 Millrace Dr.
Eugene, OR 97403

Phone: 541-359-4710
Fax: 541-550-1613
Email: dune@dunesciences.com