Charge storage in nanotubes: the case of a 2-1 electrolyte
| Autor: | W. Schmickler, D. Henderson |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Condensed Matter Physics, Vol 20, Iss 3, p 33004 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1607-324X 2224-9079 |
| DOI: | 10.5488/CMP.20.33004 |
| Popis: | We consider a 2-1 electrolyte in contact with a narrow nanotube, which only allows one-dimensional storage along the axis. The asymmetry does not allow an a priori definition of the potential of zero charge; instead, the natural reference is the electrode potential at which both ions have the same electrochemical potential; the value of the latter can serve as a measure of ionophilicity. Near this potential, ionophobic tubes are filled with a dilute gas, ionophilic tubes are filled with a one-dimensional solid containing about the same number of the divalent ions and the monovalent counterions, a structure that is stabilized by a strong screening of the Coulomb interaction by an induced counter charge on the walls of the tube. The filling of the tube by the application of an electrode potential exhibits a complicated pattern of interactions between the two kinds of ions. |
| Databáze: | Directory of Open Access Journals |
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