The effect of surface hydrophobicity and hydrophilicity on ion–ion interactions at water–solid interfaces

Abstract

The investigation of alkali metal cations within the H-bonding network of water on graphite and graphene-Cu(111) surfaces reveals the high sensitivity of ion-ion interactions and ionic ordering to the surface hydrophobicity and hydrophilicity.

The structure-giving role of Rb+ ions for water–ice nanoislands supported on Cu(111)

“…These thermal effects are attenuated at cryogenic temperatures as used in low-temperature scanning tunneling microscopy (LT-STM). This method opened new insights into the nucleation and growth of water structures on metal 21,35 or oxide surfaces 36,37 with 21,[35][36][37] or without [23][24][25][26][28][29][30][38][39][40][41][42][43] co-adsorbates at the molecular level.…”

“…In contrast, very little is known about the interaction of ions with water on surfaces so far. 19,21,[35][36][37]45 Thereby, the influence of alkaline ions on water structures has been studied mainly to understand water-ion interactions. 21,35,37,45 On the macroscopic scale of a hydrogen-bonded network within an aqueous solution, ions are classified according to the structural influence they have on the network.…”

“…19,21,[35][36][37]45 Thereby, the influence of alkaline ions on water structures has been studied mainly to understand water-ion interactions. 21,35,37,45 On the macroscopic scale of a hydrogen-bonded network within an aqueous solution, ions are classified according to the structural influence they have on the network. They are categorized according to their tendency to weaken or strengthen the hydrogen bond network.…”

“…In contrast, very little is known about the interaction of ions with water on surfaces so far. 19,21,35–37,45 Thereby, the influence of alkaline ions on water structures has been studied mainly to understand water–ion interactions. 21,35,37,45…”

“…19,21,35–37,45 Thereby, the influence of alkaline ions on water structures has been studied mainly to understand water–ion interactions. 21,35,37,45…”