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Briki C, Belkhiria S, Almoneef M, Mbarek M, Abdelmajid J. Experimental study of the microstructures and hydrogen storage properties of the LaNi 4Mn 0·5Co 0.5 alloys. Heliyon 2023; 9:e17430. [PMID: 37441402 PMCID: PMC10333616 DOI: 10.1016/j.heliyon.2023.e17430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
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.
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Affiliation(s)
- Chaker Briki
- Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, Tunisia
| | - Sihem Belkhiria
- Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, Tunisia
| | - Maha Almoneef
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Mohamed Mbarek
- Laboratoire de Recherche: Synthèse asymétrique et ingénierie moléculaires des matériaux nouveaux pour l’électroniques Organiques (LR18ES19) Faculté des Sciences de Monastir, Université de Monastir-Tunisie, Tunisia
| | - Jemni Abdelmajid
- Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, 5019, Monastir, Tunisia
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Hendi A, Alkhraif R, Alshehri H, AlKallas F, Almoneef M, Laref A, Awad M, Alsaif N, Almuqrin AH, Alanazi M, Altowyan A, Ortashi K. Photovoltaic Performance of Thin-Film CdTe for Solar Cell Applications. j nanofluids 2021. [DOI: 10.1166/jon.2021.1763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the current investigation, we report a theoretical study to acquire the highest feasible efficiency of cadmium telluride (CdTe) thin-films. It is well recognized that CdTe crystallizes in cubic zinc-blende structure and its direct band gap of 1.5 eV turned it out as a potential candidate
for photovoltaic (PV) applications. Our calculations are founded on Shockley-Queisser (SQ) limit to simulate the open-circuit voltage, current density, and filling factor versus the variation of photon energy up to 4.0 eV. These key parameters of SQ change with the variation of energy between
0.3 to 3.5 eV. This is owing to the strong optical absorption (> 104 cm−1) and direct band gap of 1.5 eV, which make CdTe thin-film suitable for single junction solar cell and ideal for PV applications. It is observed that the optical absorption enhances as the
thickness of the absorbed layer increases. This will effectively provide a theoretical support to the industry of global solar energy that is anticipated to be sustainable in the future.
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Affiliation(s)
- A. Hendi
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - R. Alkhraif
- Department of Physics, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - H. Alshehri
- Department of Physics, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - F. AlKallas
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - M. Almoneef
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - A. Laref
- Department of Physics, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M. Awad
- King Abdullah Institute of Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - N. Alsaif
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Aljawhara H. Almuqrin
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - M. Alanazi
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - A. Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - K. Ortashi
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, 11451, Saudi Arabia
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