Interfacial layer effects on surface capacitances and electro-osmosis in electrolytes

Douwe Jan Bonthuis, Yuki Uematsu, Roland R. Netz

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Many properties of the interfacial layer of water at surfaces differ significantly from those of bulk water. The consequences are most significant for the doublelayer capacitance and the electrokinetic properties. We model the interfacial hydration layer by a modified dielectric constant and a modified local viscosity over a single interfacial width. Analytic expressions in the low-charge Debye-Hückel approximation are derived and shown to describe experimental surface capacitance and electro-osmotic data in a unified framework.

Original languageEnglish
Article number20150033
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Issue number2060
Publication statusPublished - Feb 13 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Engineering(all)
  • Physics and Astronomy(all)


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