A DFT study of the adsorption of O2 and H2O on Al(111) surfaces

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 56303-56312 ◽  
Author(s):  
Xin Wei ◽  
Chaofang Dong ◽  
Zhanghua Chen ◽  
Kui Xiao ◽  
Xiaogang Li

Using first-principles calculations that are based on density functional theory, the molecular and dissociative adsorptions of O2 and H2O on a clean and O pre-adsorbed Al(111) surface were systematically investigated.

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79836-79843 ◽  
Author(s):  
Xin Wei ◽  
Chaofang Dong ◽  
Zhanghua Chen ◽  
Kui Xiao ◽  
Xiaogang Li

Using first-principles calculations based on van der Waals density functional theory, we systematically studied the co-adsorption behavior of H2O and O2 on Al(111) surfaces.


2018 ◽  
Vol 20 (5) ◽  
pp. 3602-3607 ◽  
Author(s):  
Zhe Fang ◽  
Jianfeng Wang ◽  
Shijie Zhu ◽  
Xiaofan Yang ◽  
Yu Jia ◽  
...  

Adsorption of short peptides, including three dipeptides: Arg–Gly, Gly–Asp, Arg–Asp, and one tripeptide RGD, on the surfaces of Mg and Mg alloys (Mg–Zn, Mg–Y, and Mg–Nd), was studied using first-principles calculations based on density functional theory (DFT), considering van der Waals (vdW) correction.


2021 ◽  
Author(s):  
H. R. Mahida ◽  
Deobrat Singh ◽  
Yogesh Sonvane ◽  
Sanjeev K. Gupta ◽  
P. B. Thakor ◽  
...  

In the present study, we have investigated the structural, electronic, and charge transport properties of pristine, hydrogenated, and oxidized Si2BN monolayers via first-principles calculations based on density functional theory (DFT).


2017 ◽  
Vol 19 (5) ◽  
pp. 3679-3687 ◽  
Author(s):  
Tao Yang ◽  
Masahiro Ehara

Using density functional theory calculations, we discussed the geometric and electronic structures and nucleation of small Co clusters on γ-Al2O3(100) and γ-Al2O3(110) surfaces.


2015 ◽  
Vol 17 (45) ◽  
pp. 30598-30605 ◽  
Author(s):  
Ming-Kai Hsiao ◽  
Chia-Hao Su ◽  
Ching-Yang Liu ◽  
Hui-Lung Chen

We employed monolayer tungsten metal to modify the Fe(111) surface, denoted as W@Fe(111), and calculated the adsorption and dehydrogenation behaviors of NH3 on W@Fe(111) surface via first-principles calculations based on density functional theory (DFT).


2014 ◽  
Vol 1015 ◽  
pp. 377-380
Author(s):  
Tao Chen ◽  
Ying Chen ◽  
Yin Zhou ◽  
Hong Chen

Using the first-principles calculations within density functional theory (DFT), we investigated the electronic and magnetic properties of (100) surface of inverse Heusler alloy Mn2CoSb with five different terminations. Our work reveals that the surface Mn atom moves to vacuum while surface Co atom moves to slab. Moreover, duo to the reason that the surface atom lost half of the nearest atoms with respect to the bulk phase, resulting in the decrease of hybridization, the atom-resolved spin magnetic moments of surface atoms are enhanced. Further investigation on DOS and PDOS showed that half-metallicity was preserved only in SbSb-termination while was destroyed in MnCo-, MnSb-, MnMn-, and CoCo-termination due to the appearance of surface states.


2009 ◽  
Vol 1200 ◽  
Author(s):  
Markus E. Gruner

AbstractThis contribution reports static ionic displacements in ferromagnetic disordered Fe70Pd30 alloys obtained by relaxation of the ionic positions of a 108-atom supercell within the framework of density functional theory. Comparison with a simple statistical model based on Lennard-Jones pair interactions reveals that these displacements are significantly larger than can be explained by the different sizes of the elemental constituents. The discrepancies are presumably related to collective displacements of the Fe atoms. Corresponding distortions are experimentally observed for ordered Fe3Pt and predicted by first-principles calculations for all ordered Fe-rich L12 alloys with Ni group elements and originate from details of the electronic structure at the Fermi level.


RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25900-25911 ◽  
Author(s):  
Esmaeil Pakizeh ◽  
Jaafar Jalilian ◽  
Mahnaz Mohammadi

In this study, based on the density functional theory and semi-classical Boltzmann transport theory, we investigated the structural, thermoelectric, optical and phononic properties of the Fe2ZrP compound.


2020 ◽  
Vol 22 (17) ◽  
pp. 9677-9684 ◽  
Author(s):  
Mehdi Ghambarian ◽  
Zahra Azizi ◽  
Mohammad Ghashghaee

A drastic improvement in the phosgene sensitivity of black phosphorene with defect engineering is reported for the first time within a periodic density functional theory framework.


2017 ◽  
Vol 19 (23) ◽  
pp. 15021-15029 ◽  
Author(s):  
Yusheng Wang ◽  
Nahong Song ◽  
Min Jia ◽  
Dapeng Yang ◽  
Chikowore Panashe ◽  
...  

First principles calculations based on density functional theory were carried out to study the electronic and magnetic properties of C2N nanoribbons (C2NNRs).


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