Surface Area Analysis from the Langmuir and BET Theories

  • S. Lowell
  • Joan E. Shields
  • Martin A. Thomas
  • Matthias Thommes
Part of the Particle Technology Series book series (POTS, volume 16)


The Langmuir [1] equation is more applicable to chemisorption (see chapter 12), where a chemisorbed monolayer is formed, but is also often applied to physisorption isotherms of type I. Although this type of isotherm is usually observed with microporous adsorbents, due to the high adsorption potential, a separation between monolayer adsorption and pore filling is not possible for many such adsorbents.


Relative Pressure Surface Area Analysis Porous Solid Pore Filling Triple Point Temperature 
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Copyright information

© Springer Science+Business Media New York 2004

Authors and Affiliations

  • S. Lowell
    • 1
  • Joan E. Shields
    • 2
  • Martin A. Thomas
    • 1
  • Matthias Thommes
    • 1
  1. 1.Quantachrome InstrumentsBoynton BeachUSA
  2. 2.C.W. Post Campus of Long Island UniversityUSA

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