Identifying the catalytically active sites on the layered tri-chalcogenide compounds CoPS3 and NiPS3 for efficient hydrogen evolution reaction

2021 ◽  
Author(s):  
Khorsed Alam ◽  
Tisita Das ◽  
Sudip Chakraborty ◽  
Prasenjit Sen
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Density Functional ◽  
Electronic Structure Calculations ◽  
Functional Theory ◽  
Catalytically Active ◽  
Structure Calculations

Electronic structure calculations based on density functional theory are used to identify the catalytically active sites for the hydrogen evolution reaction on single layers of the two transition metal tri-chalcogenide...

A comparative study of hydrogen evolution reaction on pseudo-monolayer WS2 and PtS2: insights based on the density functional theory

2017 ◽  
Vol 7 (3) ◽  
pp. 687-692 ◽  
Author(s):  
Showkat H. Mir ◽  
Sudip Chakraborty ◽  
John Wärnå ◽  
Som Narayan ◽  
Prakash C. Jha ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Density Functional ◽  
Electronic Structure Calculations ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Structure Calculations

In this study, we investigated the catalytic activity of ultrathin PtS2 and WS2 nanostructures for the hydrogen evolution reaction by electronic structure calculations based on the spin-polarised density functional theory.

scholarly journals Metallic bands in chevron-type polyacenes

RSC Advances ◽  
2020 ◽  
Vol 10 (56) ◽  
pp. 33844-33850
Author(s):  
Mohammed A. Kher-Elden ◽  
Ignacio Piquero-Zulaica ◽  
Kamel M. Abd El-Aziz ◽  
J. Enrique Ortega ◽  
Zakaria M. Abd El-Fattah
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Density Functional ◽  
Expansion Method ◽  
Electronic Structure Calculations ◽  
Plane Wave Expansion ◽  
Plane Wave Expansion Method ◽  
Functional Theory ◽  
Structure Calculations ◽  
Molecular Nanostructures

We present electronic structure calculations based on a single-parameter plane wave expansion method for molecular nanostructures revealing excellent agreement with density functional theory and predicting metallic bands for chevron molecular dimers.

Theoretical investigation of energy gap bowing in CdSxSe1−x alloy quantum dots

2017 ◽  
Vol 19 (22) ◽  
pp. 14495-14502
Author(s):  
Laxman Tatikondewar ◽  
Anjali Kshirsagar
Keyword(s):  
Density Functional Theory ◽  
Quantum Dots ◽  
Electronic Structure ◽  
Theoretical Investigation ◽  
Density Functional ◽  
Energy Gap ◽  
Electronic Structure Calculations ◽  
Functional Theory ◽  
Alloy Quantum Dots ◽  
Structure Calculations

To investigate energy gap bowing in homogeneously alloyed CdSxSe1−x quantum dots (QDs) and to understand whether it is different from bulk, we perform density functional theory based electronic structure calculations for spherical QDs of different compositions x (0 ≤ x ≤ 1) and of varying sizes (2.2 to 4.6 nm).

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