ChemMaster and BET Sorptometer

ChemMaster is designed as a versatile tool to investigate and extract information about surface chemistry and surface structure, which are important for the design, production, and application of catalytic materials. PMI's ChemMaster measures the quantity of adsorbed or desorbed molecules, allowing determination of these characteristics.

ChemMaster and BET Sorptometer

Overview

ChemMaster is designed as a versatile tool to investigate and extract information about surface chemistry and surface structure, which are important for the design, production, and application of catalytic materials. PMI's ChemMaster measures the quantity of adsorbed or desorbed molecules, allowing determination of these characteristics. All measurements are performed quickly with high repeatability.

Additionally, a BET Sorptometer is provided to extend surface area measurement capability for a wide variety of materials.

PMI's BET Sorptometer is a fully automated volumetric gas sorption analyzer used to accurately measure adsorption and desorption isotherms for the characterization of surface area, pore size distribution, pore volume, and pore structure of microporous and mesoporous materials, as well as adsorption kinetics.

PMI's BET Sorptometer uses the same sample chamber for both micropore and mesopore analysis. The same sample chamber is used for outgassing and testing.

  • Automated Control.
  • Display of full adsorption and desorption isotherms.
  • Graph overlays.
  • BJH pore size distribution.
  • DFT pore size analysis method.
  • αs plot (Alpha-s Plot).
  • f-ratio plot.
  • Freundlich and Temkin isotherms.
  • Langmuir surface area.
  • Horvath–Kawazoe method.
  • Dubinin–Radushkevich method.
  • Dubinin–Astakhov method.
  • Micropore size distribution (Horvath–Kawazoe method).
  • de Boer t-plot method (for measurement of micropore volume in cc/g and micropore area in m²/g).
  • Dead-end and through-pore analysis capability.

Specifications

Accuracy± 0.15% of full scale
Adsorption Temperature−195.6 °C (Nitrogen)
Analysis GasesN2, O2, Ar, Kr, CO2, CO, H2, CH4, or other non-corrosive gases
In situ outgassingNo need for additional outgassing stations
Micropore VolumeDetectable within 0.0001 cc/g
Pore Size Range0.35 to 500 nm or higher
Power Requirements110 / 220 VAC, 50/60 Hz
Pressure Transducer1 sample chamber, 1000 Torr
Regeneration System (Pretreatment system)Temperature Range: Ambient to 400 °C
Resolution1 part in 60,000
Surface Area Range (in m²/g)0.0005 and above for all sample stations
Ultimate VacuumUp to 5 × 10⁻10 mbar

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