January 15, 2025
Mojtaba Farrokhbin

Mojtaba Farrokhbin

Academic Rank: Assistant professor
Address: Faculty of Nano and Biological Sciences - 1st Floor - Physics Department
Degree: Ph.D in Condensed Matter Physics
Phone: --
Faculty: Faculty of Nano and Biotechnology

Research

Title Modeling the influence of the external electric fields on water viscosity inside carbon nanotubes
Type Article
Keywords
Nanotubes, Electric Field, Molecular Dynamics, Viscosity
Journal EUROPEAN PHYSICAL JOURNAL E
DOI https://doi.org/10.1140/epje/s10189-023-00357-9
Researchers Mojtaba Farrokhbin (First researcher) , Amir Lohrasebi (Second researcher)

Abstract

Equilibrium molecular dynamics simulations were performed to explore the effects of external electric fields and confinement on water properties inside various carbon nanotubes (CNTs). Using different GHz electric field frequencies as well as various constant electric field strengths, the radial distribution function and density profile were investigated, by which the impact of the electric fields and confinement on the water structure are revealed. The results indicated water molecules inside the CNT form layered structures due to topological confinement applying external electric fields can disturb this ordered water molecules structure and increase the viscosity of confined water, particularly in the case of CNTs with a radius less than 13.5 Å. Conversely, for CNTs with a radius greater than13.5 Å, the viscosity decreases under the influence of external oscillating or constant electric fields.