temperature programmed desorption

What Information Can Be Derived from TPD Data?

The analysis of a TPD spectrum can provide several valuable insights:
- Desorption Temperatures: The temperatures at which different species desorb can indicate the strength of the interaction between the adsorbate and the catalyst surface.
- Activation Energies: By analyzing the desorption peaks, it is possible to estimate the activation energies for desorption processes.
- Surface Coverage: The area under desorption peaks can be related to the amount of adsorbed species, providing information on surface coverage.
- Adsorption Sites: Multiple peaks can indicate the presence of different types of adsorption sites on the catalyst surface.

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