New paper: The Fingerprint method for analysis of thermal desorption spectra

Since 1982, hydrogen detrapping in steels has been analyzed using Gaussian peak fitting and Choo-Lee plots. But these methods rely on strong assumptions about TDS peak shapes and numbers.
Our new fingerprint method changes that!

By applying it to 8 TDS spectra from 3 Fe–C alloys, Philipp Hammer1, Oleg Peil2, Ahmad Azizpour2, Liese Vandewalle3, Kim Verbeken3, Tom Depover3, and Vsevolod Razumovskiy1 show it:

•    Identifies activation energy distributions with high sensitivity
•    Reveals each alloy’s unique “material fingerprint”
•    Works even with a single heating rate — boosting experimental efficiency

Read more about how the fingerprint method simplifies TDS analysis and unlocks deeper insight into hydrogen trapping behavior.

Link to paper: https://doi.org/10.1038/s41529-025-00718-z 

1Christian Doppler Laboratory for digital material design guidelines for mitigation of alloy embrittlement, Materials Center Leoben Forschung GmbH
2Materials Center Leoben Forschung GmbH
3Department of Materials, Textiles and Chemical Engineering, Ghent University