B24N24 nanocages: a GIAO density functional theory study of 14N and 11B nuclear magnetic shielding and electric field gradient tensors

Identification and sensing of hydrogen fluoride (HF) on aluminum phosphide (Al24P24) nanocage in both gas and water phases: electronic study via density-functional theory computations

CONTEXT

Hydrogen fluoride (HF) is extensively present in environmental and industrial pollutants. It may harm the health of humans and animals. This work evaluated the adsorption of an (HF)n linear chain (n = 1, 2, 3, and 4) onto an AlP nanocage through ab initio calculations for the evaluation of its performance in sensing and monitoring (HF)n within aqueous and gaseous media.

METHODS

The present work adopted density functional theory (DFT) at the 6-311 G (d, p) basis set to analyze (HF)n linear chain adsorption onto AlP nanocages with the B3LYP functional. This paper examined the adsorption energy, configuration optimization, work function, and charge transfer. In addition, the contributions of the HF linear chain size to electronic properties and adsorption energy were measured. The dimer form of HF on the surface of AlP nanocages was found to have the highest stability based on the adsorption energy values. Once (HF)n was adsorbed onto the nanocage, the HOMO-LUMO energy gap experienced a large reduction from 3.87 to 3.03 eV, enhancing electrical conductivity. In addition, AlP nanocages may serve in the sensing of (HF)n under multiple environmental pollutants.

Monitoring of COS, SO2, H2S, and CS2 gases by Al24P24 nanoclusters: a DFT inspection

Through utilizing density functional theory (DFT), the current work investigates the potential uses of Al₂₄P₂₄ fullerene for detecting CS₂, H₂S, SO₂, and COS. The interaction order for the stability of these gases was SO₂ > H₂S > COS > CS₂. The moment of electric dipole and molecules' adsorption energy seems correlated. Al₂₄P₂₄ fullerene is regarded as an electronic sensor of the Ф-type for detecting SO₂ and CS₂. According to the findings, CS₂ and SO₂ might act as Al₂₄P₂₄ fullerenes when H₂S is present. Nevertheless, we cannot presume it to be a COS and H₂S sensor of Ф-type. At room temperature, the fullerene of Al₂₄P₂₄ has a quick recovery time of 0.50 μs and 0.17 s in CS₂ and SO₂ desorption from the surface. It can thus be inferred that it has the ability to function in moist media.