Article
Materials Science, Multidisciplinary
George Kim, Qing Gu, Philip Nash, Wei Chen
Summary: The properties of ternary Laves phases depend on the wide solubility ranges and site preferences of alloying elements, influencing performance significantly.
Article
Chemistry, Physical
Yudong Fu, Zifeng Li, Weihong Gao, Danni Zhao, Zhihao Huang, Bin Sun, Mufu Yan, Guotan Liu, Zihang Liu
Summary: This study reveals the incorporation mechanism of hydrogen into Nb4AlC3 MAX phase using ab initio calculations. The study finds that the interstice of the Nb-Al layer has thermal stability and is the most probable insertion site for hydrogen, while C vacancies and Al vacancies can also serve as possible sites for hydrogen incorporation. The introduction of vacancies significantly increases the hydrogen storage capacity of the MAX phase.
Article
Chemistry, Physical
H. Shen, S. S. Setayandeh, V. Paul-Boncour, N. Emery, Z. Li, P. Li, L. Jiang, P. A. Burr, M. Latroche, J. Zhang
Summary: Y0.95Ni2 intermetallic shows potential for hydrogen storage, but its low stability leads to hydrogen-induced amorphization. The stability can be controlled by the geometric factor rA/rB of the AB2 Laves phase. This study focuses on the Mn-Ni-Y system and finds that Mn substitution helps achieve a close-to-ideal rA/rB to avoid amorphization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Ende Yu, Yong Pan
Summary: The hydrogen evolution reaction activity of Pmmn borophene structure has been studied using ab-initio calculation. The results show that Pmmn borophene exhibits excellent hydrogen evolution reaction activity due to the enhanced electron transport capacity and unique charge distribution in the adsorbed state.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Mukesh Singh, Alok Shukla, Brahmananda Chakraborty
Summary: In this study, the hydrogen-storage properties of Zr-decorated g-graphyne monolayer were investigated using Density Functional Theory (DFT). The results predict that each Zr atom can adsorb up to seven H2 molecules with a hydrogen gravimetric density of 7.95 wt% and a desorption temperature of 574 K, making it suitable for fuel-cell applications. The strong attachment between decorated Zr atom and graphyne sheet is due to charge transfer, while hydrogen molecules adsorb on Zr decorated graphyne through Kubas type of interactions. The stability of Zr+g-graphyne was confirmed through ab-initio molecular dynamics simulations. Overall, these findings suggest that Zr functionalized on g-graphyne could be a promising solid-state hydrogen storage material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
M. Rkhis, R. Anoua, A. Alaoui-Belghiti, S. Laasri, S. Touhtouh, E. K. Hlil, M. Bououdina, K. Zaidat, S. Obbade, A. Hajjaji
Summary: ZrNi is a promising candidate for hydrogen storage and Ni-MH rechargeable batteries. Vacancy defects, especially nickel vacancies, have a significant impact on the dehydrogenation properties of ZrNiH3. The formation enthalpy decreases with increasing vacancy concentration, affecting the stability and hydrogen storage capability of the material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
K. Souleh, T. Smain, H. Lidjici, B. Lagoun, M. Boucenna, N. Bouarissa
Summary: The first-principles density-functional calculations were applied to study the band structure and magnetization of Zn1-xCoxO ternary magnetic alloys in three phases. The alloy was found to exhibit semiconductor character with gap nature dependent on the phase. Analysis of electronic charge density revealed a partially covalent bonding in ZnO, which weakens with increasing Co concentration. CoO was observed to have different total magnetizations in different phases.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Electrochemistry
F. Ladjailia, L. Mohammedi, Z. Ayat, A. Boukraa, H. Chaib, D. B. Mandjoubi
Summary: This study presents an ab initio electronic structure study of LiAlH4 and Li3AlH6 in their gamma-phase. The electronic band structures and optical properties of both compounds are calculated, showing that γ-LiAlH4 is a semiconductor with an energy bandgap of around 3.82 eV, while γ-Li3AlH6 is a metal-like compound without a noticeable bandgap. Furthermore, γ-Li3AlH6 exhibits better reversibility as an anode in lithium ion cells compared to γ-LiAlH4.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Samira Belkhouane, Ali Bentouaf, Habib Rached, Zahira Amel Bouyakoub
Summary: This study investigates the electronic structure and properties of PrCo2 and PrFe2 compounds using density functional calculations, finding good agreement with experimental data. The role of correlated electrons in accurately describing these compounds is highlighted through analysis of band structures and density of states. This is the first study to use the GGA + U approach for these binary Laves phases compounds.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Computer Science, Interdisciplinary Applications
Nariman Abu el Kher, Israa Zeid, Nayla El-Kork, Mahmoud Korek
Summary: The electronic structure of alkaline-earth metal hydride cations SrH+ and BaH+ have been studied, with various spectroscopic parameters and rovibrational constants determined.
These substances play a crucial role in the absorption spectrum of the sun, making theoretical studies on them essential.
JOURNAL OF COMPUTATIONAL SCIENCE
(2021)
Article
Physics, Condensed Matter
Xiao-Feng Wang, Jin-Wen Yang, Jing-Jing Zheng
Summary: This study systematically investigates the structure, mechanical properties, lattice dynamics, and thermo-physical properties of C15-Laves phase Mg2Ce using density functional theory and density functional perturbation theory. The research provides theoretical data and predictions on various properties of Mg2Ce and its mechanical and thermal behaviors under certain conditions.
SOLID STATE COMMUNICATIONS
(2022)
Article
Thermodynamics
Yuxiang Zhu, Chong-Wen Zhou, Alexander A. Konnov
Summary: In this study, the reaction kinetics of hydrogen-abstraction reactions from methoxymethanol by various radicals were investigated using high-level ab initio calculations. It was found that the H-abstraction reactions from the secondary carbon atom of methoxymethanol are favored pathways. Different radicals have different rate constants for hydrogen-abstraction reactions at different temperatures.
COMBUSTION AND FLAME
(2021)
Article
Chemistry, Physical
Kristina M. Herman, Sotiris S. Xantheas
Summary: We have introduced a new formulation of the many-body expansion (MBE) that connects gas-phase clusters to infinite solids via a hierarchical procedure. The validity of the method has been demonstrated for periodic systems by comparing computed lattice energies up to the 4-body in the MBE with those obtained using periodic boundary conditions and an Ewald summation for the 7 ice polymorphs. This development allows for the quantification of many-body contributions to the lattice energy of various ice polymorphs, which range from 7 to 24% of the total lattice energies.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Kristina M. Herman, Sotiris S. Xantheas
Summary: We present a new formulation of the many-body expansion (MBE) for periodic systems and apply it to 7 ice polymorphs. The method is validated by comparing the lattice energies computed using the MBE with those obtained using periodic boundary conditions and Ewald summation. This development enables the quantification of many-body contributions to the lattice energy of ice polymorphs and provides insights into their solid-state properties.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
W. Gierlotka, A. Debski, S. Terlicka, W. Gasior, M. Peska, J. Dworecka-Wojcik, M. Polanski
Summary: In this study, ab initio calculations were used to investigate the phase diagram and mechanical properties of the Mg-Pt system. A preliminary phase diagram and crystal structure of the MgPt phase were proposed. The results showed that the MgPt phase had the most negative formation free energy change.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Physics, Applied
Mohammad Hosseinzadeh, Shaban Reza Ghorbani, Hadi Arabi
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2018)
Article
Physics, Applied
Narjess Sadat Kiafiroozkoohi, Shaban Reza Ghorbani, Hadi Arabi
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2018)
Article
Physics, Condensed Matter
N. S. Kia, S. R. Ghorbani, H. Arabi, M. S. A. Hossain
SOLID STATE COMMUNICATIONS
(2018)
Article
Materials Science, Multidisciplinary
Reza Ghanbari, Shaban Reza Ghorbani, Hadi Arabi, Javad Foroughi
Article
Electrochemistry
S. Rumh Kadhim, R. Etefagh, H. Arabi
JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS
(2018)
Article
Materials Science, Multidisciplinary
Reza Ghanbari, Shaban Reza Ghorbani, Hadi Arabi, Javad Foroughi
MATERIALS RESEARCH EXPRESS
(2018)
Article
Materials Science, Ceramics
Nasrin Azad, Hadi Arabi, Shaban Reza Ghorbani, Ali Davodi
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2018)
Article
Materials Science, Ceramics
Y. Ghasemian Sorboni, H. Arabi, A. Kompany
CERAMICS INTERNATIONAL
(2019)
Article
Physics, Applied
Nasrin Azad, Hadi Arabi, Shaban Reza Ghorbani, Ali Davodi
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2019)
Article
Physics, Applied
Mohammad Hosseinzadeh, Shaban Reza Ghorbani, Hadi Arabi
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2020)
Article
Materials Science, Multidisciplinary
R. Etefagh, S. M. Rozati, H. Arabi
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Chemistry, Physical
M. Komeili, H. Arabi, R. Yusupov, S. R. Ghorbani, F. G. Vagizov, F. Pourarian
Summary: The Zr-2(Co0.5Fe0.2Ni0.2V0.1) intermetallic alloy prepared by arc melting method shows promising potential for practical applications with its high hydrogen capacity and good anti-disproportionation behavior at room temperature. The alloy exhibits a decrease in hydrogen capacity in the first few cycles followed by stability, likely due to the high stability of the hydride. The study highlights interesting features of the hydride that could be considered for practical use.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Physics, Applied
A. Amirabadizadeh, M. Hassanzadeh, R. Sarhaddi, M. R. Rasouli
Summary: This study compared the effects of tungsten on cobalt-based ribbons, and experimented with covering ribbons with PVA/Fe3O4 nanocomposite films. The results showed significant enhancements in GMI and sensitivity of the ribbons, providing a new efficient method for increasing GMI and sensitivity in biosensor applications.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Chemistry, Physical
Afsaneh Zareie-Darmian, Hossein Farsi, Alireza Farrokhi, Reza Sarhaddi, Zhihai Li
Summary: This study demonstrates a combined theoretical and experimental investigation into the electronic structure, optical properties, and electrochemical behavior of beta-Ag2MoO4 and Ag2O. The results suggest that beta-Ag2MoO4 and Ag2O can serve as effective electrocatalysts for water splitting and CO2 reduction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
R. Etefagh, S. M. Rozati, H. Arabi
INDIAN JOURNAL OF PHYSICS
(2020)