کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
201197 | 460538 | 2013 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ionic hydration of Na+ inside carbon nanotubes, under electric fields Ionic hydration of Na+ inside carbon nanotubes, under electric fields](/preview/png/201197.png)
Molecular dynamics simulations were performed to study the hydration of Na+ inside carbon nanotubes (CNTs) under external electric fields from 0 to 0.1 V/nm. The simulation results show that the hydration of Na+ varies with the electric field intensity (E). The coordination number in the first hydration shell of Na+ increases with the increase of E. The analysis of orientation distributions for water dipole shows the Na+ hydration is strengthened when the direction of external field is aligned with the electric field generated by Na+, and is weakened when these are opposite. When E is aligned with the electric field of Na+, the strength of hydration is non-monotonic as E and reaches its maximum when E is equal to 0.01 V/nm. This finding provides some guidance for the application of electric field in ion-transporting channels.
Journal: Fluid Phase Equilibria - Volume 353, 15 September 2013, Pages 1–6