Chemisorption is the chemical fixation of a molecule in gas state on a solid surface. An exchange of electrons occurs, leading to a quantifiable change in the material conductivity.

Desorption consists in the release of an adsorbed molecule from a material surface when the provided energy is important.

Technical data

Oven: quartz tube
Temperature : till 1000°C
Diluted gas: H₂, O₂, CO, CO₂, NH₃, SO₂
Carrier gas: Ar, He
Detector : MS Pfeiffer Thermostar and/or TCD
Consumables: quartz wool, quartz tube, seals

Analysis conditions / submit a sample

Sample: in solid state, from 2 to 100 mg

Gas flow: from 5 to 75 ml/min

Ramps: from 5 to 30°C/min

Contact Sécou Sall to be trained on the equipment.

At the end of the training you will obtain an access to book the chemisorption equipment on GRR (http://grricpees.prod.lamp.cnrs.fr/week_all.php?area=1).

Contacts and location

Scientific referee: Dominique Bégin
Technical and training referee: Sécou Sall
Location: R3N1