Temperature Programmed Desorption

Catalysis on metals group

The self-constructed TPD (Temperature Programmed Desorption) setup allows the temperature induced desorption of different kinds of probe molecules like H2, CO, CO2 into a stream of inert gas. The desorption event itself is analyzed by mass spectrometry (QMS). Samples are possibly treated in a temperature window between –196 °C to +500 °C and at pressures up to 30 bar. Heating rates between 1 and 15 °C/min are generally applied, also for kinetic investigations.

Temperature range                   -196 -+500 °C

Heating rate                                1-10 °C/min

Pressure                                      Up to 30 bar

Sample sieve fraction               100-200 μm / 50 -200 mg

Available Gases                          H2, CO, CO2

Methods                                      TPD   

Detection                                     QMS

Inert Transfer                              possible