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BET surface area

The adsorption/desorption isotherms and pore volumes of the adsorbents were determined by nitrogen adsorption-desorption isotherms, measured at 77 K using a Quanta chrome Autosorb 1C system. The samples were degassed at 200oC under vacuum before starting N2 adsorption. Surface area and pore volumes (or pore size distribution) were determined using the Brunauer-Emmet-Teller (BET) equation, Barret-Joyner-Halenda (BJH), and DFT methods respectively.

Unique Features OF BET

Automatically performed Temperature programmed techniques (TPR/TPD/TPO. Flow-based, pulse titration method for rapid determination of active surface area, and degree of metal dispersion.Available vapor generator option with heated manifold for use with water and organic vapors. Available, integrated mass spectrometer option for identification of desorbed gases. High sensitivity, thermal conductivity detector (TCD) for TPR/TPD/TPO analysis and automatic physisorption and chemisorption by precise vacuum volumetric method for analysis of BET surface area, meso- and micropore size distribution, active surface area, degree of metal dispersion, heats of adsorption, etc.

General Information

Make: Quanta chrome

Model: Autosorb iQ3

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Quanta chrome Autosorb iQ3

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