advancing sorption science

IMI-FLOW: Gas Sorption measurements by Dynamic sorption and thermal desorption

IMI instrument with integrated reactor option


In addition to all the features of the IMI Manometric systems, IMI-Flow permits measurements and sample treatments using flowing gas.

  • Multiple flow controlled gas inputs
  • Automatic gas species selection
  • Variable composition mixed gas experiments
  • Integration of Hiden Analytical Mass spectrometer with synchronised data acquisition
  • Extremely high sensitivity available from Mass spectrometric determination
    • Measurement of sorption capacity on milligram sized samples
    • Desorption of trace impurities
  • Sequential manometry, thermal desorption

Schematic of the instrument during IMI-FLOW operation

The layout of an IMI-FLOW instrument during flowing operation.

During Manometric measurements the system operates as the IMI.

Experimental Methods

  • Isotherm mapping of tiny samples (few mg) by sorption/flash desorption
  • Hydrogen storage capacity
  • Temperature Programmed Desorption (TPD)
  • Thermal Desorption Spectrometry (TDS)
  • Cyclic stability
  • In Situ activation and degas
  • Breakthrough curve determination
  • Temperature Programmed reaction studies (TPO/TPR)
  • PCT measurements
  • Sorption enthalpy determination
  • Kinetics

Application Areas

  • Metal Hydrides
  • Gas separation and purification
  • High pressure catalysis and catalyst deactivation
  • Gas separation and exchange reactions
  • Isotope exchange, e.g. Steady State Isotopic Transient Kinetic Analysis (SSITKA)
  • Adsorption on porous materials
  • Energy gas storage
  • Catalysis

See also

The IGA Gravimetric Analysers

For further information, or if you would like to discuss your application, please contact us.

Mercer Instruments specialises in the supply and support of scientific instruments for measurements of sorption, and characterisation of pore size and surface area.
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for gas and vapour sorption.
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