Nickel-decorated B12P12 nanoclusters as a strong adsorbent for SO2 adsorption: Quantum chemical calculations

2017 ◽  
Vol 95 (10) ◽  
pp. 958-962 ◽  
Author(s):  
Ali Shokuhi Rad ◽  
Ali Mirabi ◽  
Majid Peyravi ◽  
Mahmoud Mirzaei
Keyword(s):  
Density Functional ◽  
Bond Distance ◽  
Functional Theory ◽  
Boron Phosphide ◽  
So2 Adsorption ◽  
Highly Sensitive ◽  
Charge Analysis ◽  
Sensitive Sensor ◽  
Modified Surface ◽  
Orbital Analysis

In this study, we have researched the interaction of SO2 molecule onto boron phosphide (B12P12) and Ni-decorated B12P12 nanoclusters using density functional theory (DFT). While SO2 has weak physisorption on the surface of pristine B12P12 (–7.4 kJ/mol), high chemisorption is found in the case of Ni-decorated B12P12 depending on the location of the Ni-decorated atom (–140.9, –167.7, and –166.5 kJ/mol). We found three major sites for appropriate decoration of Ni on the surface of a nanocluster, so we tried to find the maximum SO2 adsorption of this modified surface by taking into account the calculations of adsorption energy, bond distance, dipole moment study, charge analysis, frontier orbital analysis, and density of states of all relaxed systems. Our observations reveal that Ni-decorated B12P12 are highly sensitive for SO2 molecules, which is beneficial for design of sensitive sensor.

High ozone chemisorption by using metal–cluster complexes: a DFT study on the nickel-decorated B12P12 nanoclusters

2017 ◽  
Vol 95 (8) ◽  
pp. 845-850 ◽  
Author(s):  
Ali Shokuhi Rad
Keyword(s):  
Adsorption Energy ◽  
Electronic Structures ◽  
Density Functional ◽  
Metal Cluster ◽  
Bond Distance ◽  
Frontier Orbital ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Charge Analysis ◽  
Orbital Analysis

In the present study, by using first-principle study within the density functional theory (DFT), we investigated the ozone (O3) chemisorption on the surface of pristine and nickel-decorated B12P12 nanoclusters. The important emphasis of this study is to follow changes in the electronic structures of the aforementioned nanoclusters upon adsorption of the O3 molecule. Although we found strong chemisorption of O3 on a pristine nanocluster (–282.7 kJ/mol), significant increases in adsorption were found by modifying the nanocluster’s surface. Firstly, we found there are three possible sites on the surface of the nanocluster for nickel (Ni) decoration. For each Ni-decorated nanocluster, we searched its potential for adsorption of O3 by using quantum chemical calculations. Depending on the location of decorated Ni, we found considerable increased values of O3 adsorption energy (–340.8, –376.8, and –382.4 kJ/mol). We carried out calculations by taking into account the values of adsorption energy, bond distance, dipole moment study, charge analysis, frontier orbital analysis, and density of states of all relaxed systems.

Surface Carboxylation of a Boron-Carbon BC5 Nanotube in the Development of Sensor Devices

2021 ◽  
Vol 887 ◽  
pp. 23-27
Author(s):  
I.V. Zaporotskova ◽  
E.S. Dryuchkov ◽  
D.E. Vilkeeva
Keyword(s):  
Density Functional ◽  
High Sensitivity ◽  
Dft Method ◽  
Molecular Cluster ◽  
Functional Theory ◽  
Highly Sensitive ◽  
The Density Functional Theory ◽  
Sensitive Sensor ◽  
Surface Modified ◽  
Boron Carbon

This article discusses the possibility of the fabrication of a highly sensitive sensor based on single-walled boron-carbon BC5 nanotubes surface modified with functional carboxyl groups (-COOH). The sensor potential for detection of alkali (lithium, potassium, and sodium) metals were investigated. The results of computer simulation of the interaction process between the sensor and an arbitrary surface of the modified tube containing atoms of the studied metals are presented. The carboxylated BC5 nanotube and a similarly modified BC3 nanotube was compared. The effect of boron atoms on sensory properties of the obtained system is concluded. The calculations were carried out within the framework of the density functional theory (DFT) method using the molecular cluster model. It has been proved that surface-modified boron-carbon nanotubes by carboxyl group show high sensitivity for the metal atoms under study and can be used as the sensor device.

scholarly journals Zinc-Doped Boron Phosphide Nanocluster as Efficient Sensor for SO2

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Shahid Hussain ◽  
Shahzad Ali Shahid Chatha ◽  
Abdullah Ijaz Hussain ◽  
Riaz Hussain ◽  
Muhammad Yasir Mehboob ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Frontier Molecular Orbital ◽  
Functional Theory ◽  
Global Indices ◽  
Boron Phosphide ◽  
Adsorption Energies ◽  
Molecular Orbital Analysis ◽  
Orbital Analysis ◽  
Optimized Geometries

Adsorption of SO2 on pure B12P12 and Zn-doped B12P12 is investigated through density functional theory methods. Zn adsorption on BP delivers four optimized geometries: B-Top, P-top, b64, and ring-enlarged geometry with adsorption energies of −57.12 kJ/mol, −14.50 kJ/mol, −22.94 kJ/mol, and −14.83 kJ/mol, respectively. The adsorption energy of SO2 on pristine boron phosphide is −14.92 kJ/mol. Interaction of SO2 with Zn-doped boron phosphide gives four different geometries with adsorption energies of −69.76 kJ/mol, −9.82 kJ/mol, −104.92 kJ/mol, and −41.87 kJ/mol. Geometric parameters such as dipole moment, QNBO, frontier molecular orbital analysis, PDOS, and global indices of reactivity are performed to visualize the changes in electronic properties of B12P12 after Zn and SO2 adsorption.

Experimental and computational investigations of TiIrB: a new ternary boride with Ti1+x Rh2−x+y Ir3−y B3-type structure

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jan P. Scheifers ◽  
Kate A. Gibson ◽  
Boniface P. T. Fokwa
Keyword(s):  
Density Functional ◽  
Ternary Phase ◽  
Structure Type ◽  
X Ray Diffraction ◽  
Functional Theory ◽  
Arc Melting ◽  
Ternary Boride ◽  
Charge Analysis ◽  
First Time ◽  
Bader Charge Analysis

Abstract A new ternary phase, TiIrB, was synthesized by arc-melting of the elements and characterized by powder X-ray diffraction. The compound crystallizes in the orthorhombic Ti1+x Rh2−x+y Ir3−y B3 structure type, space group Pbam (no. 55) with the lattice parameters a = 8.655(2), b = 15.020(2), and c = 3.2271(4) Å. Density Functional Theory (DFT) calculations were carried out to understand the electronic structure, including a Bader charge analysis. The charge distribution of TiIrB in the Ti1+x Rh2−x+y Ir3−y B3-type phase has been evaluated for the first time, and the results indicate that more electron density is transferred to the boron atoms in the zigzag B4 units than to isolated boron atoms.

Ca12O12 nanocluster as highly sensitive material for the detection of hazardous mustard gas: Density-functional theory

2021 ◽  
pp. 109174
Author(s):  
Rudi Kartika ◽  
Forat H. Alsultany ◽  
Abduladheem Turki Jalil ◽  
Mustafa Z. Mahmoud ◽  
Mohammed N. Fenjan ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Mustard Gas ◽  
Sensitive Material ◽  
Functional Theory ◽  
Gas Density ◽  
Highly Sensitive

Nitrogen induced phosphorene formation on the boron phosphide (111) surface: a density functional theory study

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108621-108626 ◽  
Author(s):  
J. Guerrero-Sánchez ◽  
M. Lopez-Fuentes ◽  
F. Sánchez-Ochoa ◽  
Noboru Takeuchi ◽  
Gregorio H. Cocoletzi
Keyword(s):  
Density Functional Theory ◽  
Dft Calculations ◽  
Density Functional ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Boron Phosphide

Nitrogen induced phosphorene formation on top of the BP (111) surface is investigated using periodic density functional theory (DFT) calculations.

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