The ASAP 2020 Options
The ASAP 2020 Series is designed to provide high-quality surface area, porosity, and chemisorption data to materials analysis laboratories with ever-expanding needs. The standard model can be upgraded to perform a full range of surface characterizing analyses. All options, including the degas and chemi systems, are designed to be integrated into the ASAP 2020 cabinet and require no additional bench space.
HighVac Option
When equipped with a 10-mm Hg transducer and a turbo molecular pump, the standard system becomes a HighVac System. This system provides the low-pressure capability and pressure measurement resolution required for low surface area analyses using krypton as the adsorptive.
Micropore Option
The HighVac System upgraded with a 1-mm Hg transducer becomes the powerful Micropore System. The Micropore System delivers accurate porosity data on pores between 0.35 and 3 nanometers and provides a comprehensive selection of micropore reports.
With the Micropore Option, the report set is expanded to include high-resolution distributions of micropore volume and area by pore size using the methods of:
- Dubinin-Radushkevich (D-R)
- Dubinin-Astakhov (D-A)
- Horvath-Kawazoe (H-K)
- H-K with Cheng & Yang correction for slit-shaped pores
- H-K with Saito & Foley model for cylindrical pores
Chemisorption Option
A chemisorption upgrade added to a HighVac or Micropore System provides surface characterization analysis of catalytic materials. The Chemi System automatically determines active metal surface area and percent metal dispersion, crystallite size, adsorption energy, and more. An optional integrated mass spectometer is also available.
The ASAP 2020 Chemisorption Option broadens the capabilities of the instrument system to include chemical adsorption experiments. Reported data include:
- Active metal area
- Heat of chemical adsorption
- Crystallite size
- Strong and weak chemisorption
- Active metal dispersion
Enhanced Chemical Resistance Option
The ASAP 2020’s stainless-steel manifold is available with chemically resistant Kalrez® seals to support analyses using stronger gases or vapors as the adsorptive. It is ideal for experiments with unsaturated hydrocarbons such as benzene and toluene. Studies using water vapor as the adsorptive can also be performed on any ASAP 2020 with the optional water vapor accessory.