1. Modelling of hydrogen thermal desorption spectra
- Author
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Irina Bessarabskaia, Serge Nyallang Nyamsi, Roman V. Denys, Volodymyr A. Yartys, and Mykhaylo Lototskyy
- Subjects
Materials science ,Hydrogen ,Magnesium ,Magnesium hydride ,Thermal desorption ,chemistry.chemical_element ,Thermodynamics ,02 engineering and technology ,Activation energy ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Desorption ,0210 nano-technology ,Ball mill ,Titanium - Abstract
In this work, we report about development of computer model of hydrogen Thermal Desorption Spectra (TDS) using a combination of modified Kissinger approach and combined form of differential kinetic equation. For an individual TDS peak, the developed model allows to adequately fit the experimental TDS data using up to 6 parameters, including the activation energy of desorption and the pre-exponent factor. The fitting procedure also allows visualizing the reaction model function using the experimental TDS data. The model was verified for the nanostructured magnesium hydride prepared by high-energy ball milling of magnesium in hydrogen, including its composites with carbon and titanium.
- Published
- 2018
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