Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys
In the present study, the absorption and desorption kinetics of hydrogen and the isotherm (P–C-T)) of the LaNi4Mn0·5Co0.5 alloy were measured at values of 283 K, 303 K, and 313 K. The morphological states of this sample were examined using characterization techniques, including X-ray diffraction and...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023046388 |
| _version_ | 1827919386454786048 |
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| author | Chaker Briki Sihem Belkhiria Maha Almoneef Mohamed Mbarek Jemni Abdelmajid |
| author_facet | Chaker Briki Sihem Belkhiria Maha Almoneef Mohamed Mbarek Jemni Abdelmajid |
| author_sort | Chaker Briki |
| collection | DOAJ |
| description | In the present study, the absorption and desorption kinetics of hydrogen and the isotherm (P–C-T)) of the LaNi4Mn0·5Co0.5 alloy were measured at values of 283 K, 303 K, and 313 K. The morphological states of this sample were examined using characterization techniques, including X-ray diffraction and scanning electron microscopy. The thermodynamic functions for the absorption-desorption of hydrogen by hydrides, such as enthalpy (H) and entropy (S), were calculated from the experimental data or by using a model that exists in the literature and is premised on the adjustment of isotherm curves at various temperatures. This model is based on an integrated form of the Van't Hoff equation and a simultaneous examination of the isotherms. According to the experimental results, the amount of hydrogen absorbed or desorbed by the sample is significantly affected by the partial substitution of the nickel atom by the elements Mn and Co. However, this substitution increased the absorption or de-sorption plateau pressure. |
| first_indexed | 2024-03-13T03:57:05Z |
| format | Article |
| id | doaj.art-8dd8b7e05a434a0393f45a52be3b30b3 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-13T03:57:05Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-8dd8b7e05a434a0393f45a52be3b30b32023-06-22T05:04:28ZengElsevierHeliyon2405-84402023-06-0196e17430Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloysChaker Briki0Sihem Belkhiria1Maha Almoneef2Mohamed Mbarek3Jemni Abdelmajid4Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, Tunisia; Corresponding author.Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, TunisiaDepartment of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi ArabiaLaboratoire de Recherche: Synthèse asymétrique et ingénierie moléculaires des matériaux nouveaux pour l’électroniques Organiques (LR18ES19) Faculté des Sciences de Monastir, Université de Monastir-Tunisie, TunisiaLaboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, TunisiaIn the present study, the absorption and desorption kinetics of hydrogen and the isotherm (P–C-T)) of the LaNi4Mn0·5Co0.5 alloy were measured at values of 283 K, 303 K, and 313 K. The morphological states of this sample were examined using characterization techniques, including X-ray diffraction and scanning electron microscopy. The thermodynamic functions for the absorption-desorption of hydrogen by hydrides, such as enthalpy (H) and entropy (S), were calculated from the experimental data or by using a model that exists in the literature and is premised on the adjustment of isotherm curves at various temperatures. This model is based on an integrated form of the Van't Hoff equation and a simultaneous examination of the isotherms. According to the experimental results, the amount of hydrogen absorbed or desorbed by the sample is significantly affected by the partial substitution of the nickel atom by the elements Mn and Co. However, this substitution increased the absorption or de-sorption plateau pressure.http://www.sciencedirect.com/science/article/pii/S2405844023046388Hydrogen storageIsothermEnthalpy (ΔH)Entropy (ΔS)KineticsLaNi4Mn0·5Co0.5 alloy |
| spellingShingle | Chaker Briki Sihem Belkhiria Maha Almoneef Mohamed Mbarek Jemni Abdelmajid Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys Heliyon Hydrogen storage Isotherm Enthalpy (ΔH) Entropy (ΔS) Kinetics LaNi4Mn0·5Co0.5 alloy |
| title | Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys |
| title_full | Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys |
| title_fullStr | Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys |
| title_full_unstemmed | Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys |
| title_short | Experimental study of the microstructures and hydrogen storage properties of the LaNi4Mn0·5Co0.5 alloys |
| title_sort | experimental study of the microstructures and hydrogen storage properties of the lani4mn0·5co0 5 alloys |
| topic | Hydrogen storage Isotherm Enthalpy (ΔH) Entropy (ΔS) Kinetics LaNi4Mn0·5Co0.5 alloy |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023046388 |
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