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Micromeritics ASAP 2020

Materials with low surface areas such as powdered metals, glass fibers, and natural organic materials can also be analyzed.

Capabilities/Accessories

  • Permanently connected gases for adsorption and surface area measurements are

              - high purity N2 (Unit 1 and Unit 2),
              - high purity CO2 (Unit 1 and Unit 2),
              - krypton (Unit 1),

              - methane (Unit 1),

              - argon (Unit 1).

  • Temperature range:

          - standard bath (liquid N2): -196 °C;
          - variable temperature bath: -30 – 130 °C.

  • Pressure range: 10-6 – 800 Torr.
  • Vapor adsorption option (only for Unit 2): adsorption of water vapor, hydrocarbons etc. can be carried out at different temperatures by the aid of the cryo-compact circulator and variable temperature bath (-30 – 130 °C).
  • The Rate of Adsorption Option (only for Unit 2) allows the user to measure how quickly (or slowly) a sample adsorbs each dose of gas. Time resolution: 1 s.

Example/Application areas

Related publications:

Liu, Q., Cheung, O., Garcia-Bennett, A. E., Hedin, N.: Aluminophosphates for CO2 Separation. ChemSusChem 4 (2011) 91-97.

Akhtar, F., Ojuva, A., Wirawan, S.K., Hedlund, J., Bergström, L. Hierarchically porous binder-free silicalite-1 discs: A novel support for all-zeolite membranes (2011) Journal of Materials Chemistry, 21 (24), pp. 8822-8828.

Z. Bacsik, N. Ahlsten, A. Ziadi, G. Zhao, A. E. Garcia-Bennett, B. Martin-Matute, N. Hedin
Mechanisms and kinetics for sorption of CO2 on bicontinuous mesoporous silica modified with n-propylamine, Langmuir 2011, 27, 11118-11128.

CO2 adsorption isotherms for aminopropyl modified AMS-6 silica (AMS-6/APTES; solid lines) and for AMS-6 (dotted lines); recorded by ASAP2020 at 0 and 21 ºC (Langmuir 2011, 27, 11118-11128.)
CO2 adsorption isotherms for aminopropyl modified AMS-6 silica (AMS-6/APTES; solid lines) and for AMS-6 (dotted lines); recorded by ASAP2020 at 0 and 21 ºC (Langmuir 2011, 27, 11118-11128.)

 

Recharge Rates

MMK users: 10 SEK

With operator: additional 150 SEK/hour
Outside academic users: 20 SEK

With operator: additional 300 SEK/hour
Non-academic users: 40 SEK

With operator additional 600 SEK/hour

Time unit: per hour