W. F. SchneiderCBE CBE Lecture 15 Introduction to Catalysis William F. Schneider Department of Chemical and Biomolecular Engineering Department of Chemistry and Biochemistry University of Notre Dame Fall Semester 2005

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● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ ● ○ W. F. SchneiderCBE Brunauer-Emmett-Teller Isotherm (BET) Solid Surface ΔH ads ΔH cond ΔH ads / ΔH cond Relaxes Langmuir restriction to single layer adsorption  Monolayer adsorption; multilayer condensation Useful for total surface area measurement  Adsorption of boiling N 2 (78 K)