DETERMINATION OF THE SURFACE AREAS OF SELECTED SOLIDS.
Research and development rept.,
NAVY MARINE ENGINEERING LAB ANNAPOLIS MD
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Because of the many applications of solid-gas interface phenomena in Navy technology, a study was made of methods for the determination of the surface area of solids with the purpose of investigating new adsorbents. After a review of the literature on the many techniques for measuring surface area, the dynamic flow methods using the Brunauer-Emmett-Teller theory of molecular adsorption was selected. The error in this method is less than 5 percent, and the instrumentation required is not overly complicated. The instrumentation was set up, sample treatment and measuring techniques were standardized, and the surface areas of selected materials were determined. The values ranged from a high of almost 1000 square meters per gram for activated carbon to a low of 0.078 squares meters per gram for glass beads. Author
- Atomic and Molecular Physics and Spectroscopy