Probing the electronic structures of Con (n = 1–5) clusters on γ-Al2O3 surfaces using first-principles calculations

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 (25) ◽  
pp. 16351-16358 ◽  
Author(s):  
Weiyang Yu ◽  
Zhili Zhu ◽  
Chun-Yao Niu ◽  
Chong Li ◽  
Jun-Hyung Cho ◽  
...  

Using first-principles density functional theory calculations, we investigate the geometries, electronic structures, and thermodynamic stabilities of substitutionally doped phosphorene sheets with group III, IV, V, and VI elements.


RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49214-49220 ◽  
Author(s):  
Xiaofeng Li ◽  
Junyi Du

Using an unbiased structure search method based on particle-swarm optimization algorithms in combination with density functional theory calculations, we investigate the phase stability and electronic properties of NbB3 under high pressures.


2013 ◽  
Vol 91 (1) ◽  
pp. 81-84
Author(s):  
Aqeel Mohsin Ali

The density functional theory calculations are applied for C20 cage fullerenes. Furan, pyrole, and phenylvinyle monomers are made to interact with a C20 cage at the same C position. An electric field was applied with varying strength. Computations were carried out for all cases at the B3LYP/6-31G* level. The structure, energetic, and relative stabilities of the compounds were compared with each other and analyzed. In addition, the electric field dependent and independent electronic transition spectra of the proposed stable neutral C20 cage are investigated.


2018 ◽  
Vol 47 (10) ◽  
pp. 3303-3320 ◽  
Author(s):  
F. Failamani ◽  
R. Podloucky ◽  
J. Bursik ◽  
G. Rogl ◽  
H. Michor ◽  
...  

The crystal structures of two novel borides τ5-Ni3Zn2B and τ6-Ni2ZnB, were determined. For these newly found phases as well as for τ3-Ni21Zn2B20 and τ4-Ni3ZnB2 density functional theory calculations (DFT-VASP) were performed.


RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 24867-24876
Author(s):  
B. Moses Abraham

We report the high pressure structural and vibrational properties of 5,5′-bitetrazole-1,1′-diolate based energetic ionic salts via dispersion-corrected density functional theory calculations.


2015 ◽  
Vol 17 (15) ◽  
pp. 9997-10003 ◽  
Author(s):  
Tao Hu ◽  
Jiemin Wang ◽  
Hui Zhang ◽  
Zhaojin Li ◽  
Minmin Hu ◽  
...  

Structural and vibrational properties of emerging Ti3C2and T-terminated Ti3C2T2(T = O, F, OH) monosheets are studied by density functional theory calculations.


2020 ◽  
Vol 22 (10) ◽  
pp. 5826-5831
Author(s):  
L. Wang ◽  
W. Pan ◽  
D. Han ◽  
W. X. Hu ◽  
D. Y. Sun

Multiple types of oxygen octahedral distortions are found in LAO/STO(001) superlattices by using density functional theory calculations.


2015 ◽  
Vol 29 (27) ◽  
pp. 1550160 ◽  
Author(s):  
Yanhua Wang ◽  
Xiaoyu Shang ◽  
Xiaowei Wang ◽  
Jianying Tong ◽  
Jingcheng Xu

Functionalization of [Formula: see text] monolayer doped by the transition-metal Fe adatom [Formula: see text]–[Formula: see text] and NO absorption on [Formula: see text]–[Formula: see text] has been investigated computationally using first-principles calculations based on the density functional theory. We found that the system of [Formula: see text]–[Formula: see text] remains a semiconductor, with spin polarization at the Fermi level. However, for the system with absorption of NO molecule on the surface of [Formula: see text]–[Formula: see text] monolayer, its spin polarization is turned over at the Femi level, which provides a promising material for spintronic sensors.


2020 ◽  
Vol 34 (24) ◽  
pp. 2050254 ◽  
Author(s):  
Shuangxi Wang ◽  
Ping Zhang

The adsorption properties of isolated H2O molecule on stoichiometric and reduced ceria(111) surfaces are theoretically investigated by first-principles calculations and molecular dynamics simulations. We find that the most stable adsorption configurations form two hydrogen bonds between the adsorbate and substrate. The water molecule is very inert on the stoichiometric surface unless up to a high temperature of 600 K. For the reduced surface, we find that the oxygen vacancy enhances the interaction. Moreover, simulations at low temperature of 100 K confirm that it is facilitated for water to dissociate into H and OH species.


2019 ◽  
Vol 21 (32) ◽  
pp. 17538-17545 ◽  
Author(s):  
Yang Wu ◽  
Zhongmin Wang ◽  
Peng-Fei Liu ◽  
Tao Bo ◽  
Chongyan Hao ◽  
...  

First principles calculations show that alloying and temperature could affect the solubility and diffusivity of hydrogen in Nb. Also, TM doping could greatly improve the hydrogen diffusion performance with good control of hydrogen embrittlement.


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