Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra
An effective methodology for the detailed analysis of thermal desorption spectra (TDS) of hydrogen in carbon structures at micro- and nanoscale was further developed and applied for a number of TDS data of one heating rate, in particular, for graphite materials irradiated with atomic hydrogen. The t...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/2311-5629/8/1/6 |
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| author | Yury S. Nechaev Evgeny A. Denisov Nadezhda A. Shurygina Alisa O. Cheretaeva Ekaterina K. Kostikova Sergei Yu. Davydov Andreas Öchsner |
| author_facet | Yury S. Nechaev Evgeny A. Denisov Nadezhda A. Shurygina Alisa O. Cheretaeva Ekaterina K. Kostikova Sergei Yu. Davydov Andreas Öchsner |
| author_sort | Yury S. Nechaev |
| collection | DOAJ |
| description | An effective methodology for the detailed analysis of thermal desorption spectra (TDS) of hydrogen in carbon structures at micro- and nanoscale was further developed and applied for a number of TDS data of one heating rate, in particular, for graphite materials irradiated with atomic hydrogen. The technique is based on a preliminary description of hydrogen desorption spectra by symmetric Gaussians with their special processing in the approximation of the first- and the second-order reactions. As a result, the activation energies and the pre-exponential factors of the rate constants of the hydrogen desorption processes are determined, analyzed and interpreted. Some final verification of the results was completed using methods of numerical simulation of thermal desorption peaks (non-Gaussians) corresponding to the first- and the second-order reactions. The main research finding of this work is a further refinement and/or disclosure of poorly studied characteristics and physics of various states of hydrogen in microscale graphite structures after irradiation with atomic hydrogen, and comparison with the related results for nanoscale carbon structures. This is important for understanding the behavior and relationship of hydrogen in a number of cases of high energy carbon-based materials and nanomaterials. |
| first_indexed | 2024-03-09T20:03:27Z |
| format | Article |
| id | doaj.art-ff5c5aa3b7b54d48a4ed82c4cdd4a6fb |
| institution | Directory Open Access Journal |
| issn | 2311-5629 |
| language | English |
| last_indexed | 2024-03-09T20:03:27Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | C |
| spelling | doaj.art-ff5c5aa3b7b54d48a4ed82c4cdd4a6fb2023-11-24T00:41:20ZengMDPI AGC2311-56292022-01-0181610.3390/c8010006Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption SpectraYury S. Nechaev0Evgeny A. Denisov1Nadezhda A. Shurygina2Alisa O. Cheretaeva3Ekaterina K. Kostikova4Sergei Yu. Davydov5Andreas Öchsner6G.V. Kurdjumov Centre of Metals Science and Physics, I.P. Bardin Research Institute for Ferrous Metallurgy, Radio Str., 23/9, Build. 2, 105005 Moscow, RussiaSolid State Electronics Department, St. Petersburg State University, Universitetskaya nab. 7/9, 198904 St. Petersburg, RussiaG.V. Kurdjumov Centre of Metals Science and Physics, I.P. Bardin Research Institute for Ferrous Metallurgy, Radio Str., 23/9, Build. 2, 105005 Moscow, RussiaResearch Institute of Progressive Technologies, Togliatti State University, Belorusskaya Str. 14, 445020 Togliatti, RussiaInstitute of Applied Mathematical Research, Karelian Research Centre of the Russian Academy of Science, Pushkinskaya Str., 11, 185910 Petrozavodsk, RussiaIoffe Physical Technical Institute, RAS, Polytechnicheskaya Str., 26, 194021 St. Petersburg, RussiaFaculty of Mechanical and Systems Engineering, Esslingen University of Applied Sciences, Kanalstrasse, 33, 73728 Esslingen, GermanyAn effective methodology for the detailed analysis of thermal desorption spectra (TDS) of hydrogen in carbon structures at micro- and nanoscale was further developed and applied for a number of TDS data of one heating rate, in particular, for graphite materials irradiated with atomic hydrogen. The technique is based on a preliminary description of hydrogen desorption spectra by symmetric Gaussians with their special processing in the approximation of the first- and the second-order reactions. As a result, the activation energies and the pre-exponential factors of the rate constants of the hydrogen desorption processes are determined, analyzed and interpreted. Some final verification of the results was completed using methods of numerical simulation of thermal desorption peaks (non-Gaussians) corresponding to the first- and the second-order reactions. The main research finding of this work is a further refinement and/or disclosure of poorly studied characteristics and physics of various states of hydrogen in microscale graphite structures after irradiation with atomic hydrogen, and comparison with the related results for nanoscale carbon structures. This is important for understanding the behavior and relationship of hydrogen in a number of cases of high energy carbon-based materials and nanomaterials.https://www.mdpi.com/2311-5629/8/1/6graphite irradiated with atomic hydrogenthermal desorption spectrarate constantsactivation energiesprocesses physics |
| spellingShingle | Yury S. Nechaev Evgeny A. Denisov Nadezhda A. Shurygina Alisa O. Cheretaeva Ekaterina K. Kostikova Sergei Yu. Davydov Andreas Öchsner Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra C graphite irradiated with atomic hydrogen thermal desorption spectra rate constants activation energies processes physics |
| title | Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra |
| title_full | Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra |
| title_fullStr | Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra |
| title_full_unstemmed | Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra |
| title_short | Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra |
| title_sort | revealing hydrogen states in carbon structures by analyzing the thermal desorption spectra |
| topic | graphite irradiated with atomic hydrogen thermal desorption spectra rate constants activation energies processes physics |
| url | https://www.mdpi.com/2311-5629/8/1/6 |
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