BET Surface Area & Pore Volume Analyzer


Quanta chrome Autosorb 1C BET Surface Area & Pore Volume Analyzer is an instrument to determine the specific surface area of powders, solids and granules, the values are expressed in meter square per gram, pore size analysis, micropore analysis, pore size distribution by pore diameter, pore volume and pore surface area. The Quanta chrome Autosorb 1C BET Surface Area & Pore Volume Analyzer (Figure 1) was established in the Core Lab (201D) in 2009 with FIST (DST)grant of the Institute.

Basic Principle:

The adsorption/desorption isotherms and pore volumes of the adsorbents were determined by nitrogen adsorption–desorption isotherms, measured at 77 K using Quanta chrome Autosorb 1C system. The samples were degassed at 200°C 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:

Automatically performed Temperature programmed techniques (TPR/TPD/TPO. Flow-based, pulse titration method for rapid determination of active surface area, 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.


Department of Chemical Engineering,Core Lab 201D,
IIT Kanpur


Prof. Nishith Verma

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Figure 1

Figure 2