BET, Specific surface area - chemisorption, physisorption
Catalysis on Metal group
Autosorb iQ2 – Gas Sorption Analyzer
PHYSISORPTION - Cryosync Option
T = 80 –120 K, liquid N2
CHEMISORPTION
for e.g. CO, H2, NH3, O2, SO2
Oven up to 1100 °C
Static volumetric or dynamic method
Autosorb 6B MP
• 6 stations
• Static-volumetric measure principle
• Adsorption and Desorption of Nitrogen at 77K
Autosorb Degasser (Sample prep. for physisorption analysis)
• 6 Stations
• Pretreatment in vacuum
• From RT to 350 °C
• Ramp from 1 to 10 (1 = 30 minutes to reach T)
Temperature range 77 K –1100 °C
Pressure 10-4 mbar to saturation concentration
Sample 10 m² absolute recommended; from 0.01 m2/g
Available Gases N2, Ar, Kr, CO2,CO, H2, O2, NH3
Methods BET, BJH, NLDFT, t-plot, TPR, TPO, TPD
Detection TCD, MS (external)
Inert Transfer physisorption cell YES
chemisorption cell NO