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.
Recharge Rates
MMK users: 10 SEK
With operator: additional 250 SEK/hour
Outside academic users: 20 SEK
With operator: additional 800 SEK/hour
Non-academic users: 40 SEK
With operator additional 1000 SEK/hour