Effective pair interactions in transition metal carbides and nitrides

1993 ◽  
Vol 90 (4) ◽  
pp. 407-411 ◽  
Author(s):  
J. Klima ◽  
P. Weinberger ◽  
P. Herzig ◽  
A. Neckel
1992 ◽  
Vol 96 (11) ◽  
pp. 1569-1572
Author(s):  
J. Klíma ◽  
P. Weinberger ◽  
P. Herzig ◽  
A. Neckel

1982 ◽  
Vol 21 ◽  
Author(s):  
J.P. Landesman ◽  
P. Turchi ◽  
F. Ducastelle ◽  
G. Treglia

ABSTRACTWe make a connection, via the calculation of the band energy, between the stability of MX1−α, ordered phases (M being a transition metal, X being C or N, and α the vacancy concentration) and effective pair interactions on the metalloïd sublattice of these NaCl type compounds.


2018 ◽  
Author(s):  
Marti Lopez ◽  
Luke Broderick ◽  
John J Carey ◽  
Francesc Vines ◽  
Michael Nolan ◽  
...  

<div>CO2 is one of the main actors in the greenhouse effect and its removal from the atmosphere is becoming an urgent need. Thus, CO2 capture and storage (CCS) and CO2 capture and usage (CCU) technologies are intensively investigated as technologies to decrease the concentration</div><div>of atmospheric CO2. Both CCS and CCU require appropriate materials to adsorb/release and adsorb/activate CO2, respectively. Recently, it has been theoretically and experimentally shown that transition metal carbides (TMC) are able to capture, store, and activate CO2. To further improve the adsorption capacity of these materials, a deep understanding of the atomic level processes involved is essential. In the present work, we theoretically investigate the possible effects of surface metal doping of these TMCs by taking TiC as a textbook case and Cr, Hf, Mo, Nb, Ta, V, W, and Zr as dopants. Using periodic slab models with large</div><div>supercells and state-of-the-art density functional theory based calculations we show that CO2 adsorption is enhanced by doping with metals down a group but worsened along the d series. Adsorption sites, dispersion and coverage appear to play a minor, secondary constant effect. The dopant-induced adsorption enhancement is highly biased by the charge rearrangement at the surface. In all cases, CO2 activation is found but doping can shift the desorption temperature by up to 135 K.</div>


2020 ◽  
Vol 124 (29) ◽  
pp. 15969-15976 ◽  
Author(s):  
Martí López ◽  
Francesc Viñes ◽  
Michael Nolan ◽  
Francesc Illas

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16197-16202 ◽  
Author(s):  
Qinggao Wang ◽  
Konstantin E. German ◽  
Artem R. Oganov ◽  
Huafeng Dong ◽  
Oleg D. Feya ◽  
...  

A simple understanding on the trend of stability for transition metal carbides.


2011 ◽  
Vol 31 (3) ◽  
pp. 421-427 ◽  
Author(s):  
Ji Zou ◽  
Guo-Jun Zhang ◽  
Shi-Kuan Sun ◽  
Hai-Tao Liu ◽  
Yan-Mei Kan ◽  
...  

2015 ◽  
Vol 17 (7) ◽  
pp. 5000-5005 ◽  
Author(s):  
Eunjeong Yang ◽  
Hyunjun Ji ◽  
Jaehoon Kim ◽  
Heejin Kim ◽  
Yousung Jung

MXenes are predicted to be a family of promising Na anode materials with desirable electrochemical properties using density functional theory.


Carbon ◽  
2021 ◽  
Vol 183 ◽  
pp. 1013
Author(s):  
Yin-hong Gao ◽  
Xu Nan ◽  
Yao Yang ◽  
Bing Sun ◽  
Wen-li Xu ◽  
...  

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