Direct observation of ionic structure at solid-liquid interfaces: a deep look into the Stern Layer

Igor Siretanu; Daniel Ebeling; Martin Peter Andersson; Susan Louise Svane Stipp; Albert Philipse; Martien Cohen Stuart; Dirk van den Ende; Frieder Mugele

doi:10.1038/srep04956

Direct observation of ionic structure at solid-liquid interfaces: a deep look into the Stern Layer

Igor Siretanu, Daniel Ebeling, Martin Peter Andersson, Susan Louise Svane Stipp, Albert Philipse, Martien Cohen Stuart, Dirk van den Ende, Frieder Mugele

Department of Chemistry

120 Citations (Scopus)

Abstract

The distribution of ions and charge at solid-water interfaces plays an essential role in a wide range of processes in biology, geology and technology. While theoretical models of the solid-electrolyte interface date back to the early 20th century, a detailed picture of the structure of the electric double layer has remained elusive, largely because of experimental techniques have not allowed direct observation of the behaviour of ions, i.e. with subnanometer resolution. We have made use of recent advances in high-resolution Atomic Force Microscopy to reveal, with atomic level precision, the ordered adsorption of the mono- and divalent ions that are common in natural environments to heterogeneous gibbsite/silica surfaces in contact with aqueous electrolytes. Complemented by density functional theory, our experiments produce a detailed picture of the formation of surface phases by templated adsorption of cations, anions and water, stabilized by hydrogen bonding.

Original language	English
Article number	4956
Journal	Scientific Reports
Volume	4
ISSN	2045-2322
DOIs	https://doi.org/10.1038/srep04956
Publication status	Published - 22 May 2014

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title = "Direct observation of ionic structure at solid-liquid interfaces: a deep look into the Stern Layer",

abstract = "The distribution of ions and charge at solid-water interfaces plays an essential role in a wide range of processes in biology, geology and technology. While theoretical models of the solid-electrolyte interface date back to the early 20th century, a detailed picture of the structure of the electric double layer has remained elusive, largely because of experimental techniques have not allowed direct observation of the behaviour of ions, i.e. with subnanometer resolution. We have made use of recent advances in high-resolution Atomic Force Microscopy to reveal, with atomic level precision, the ordered adsorption of the mono- and divalent ions that are common in natural environments to heterogeneous gibbsite/silica surfaces in contact with aqueous electrolytes. Complemented by density functional theory, our experiments produce a detailed picture of the formation of surface phases by templated adsorption of cations, anions and water, stabilized by hydrogen bonding.",

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T1 - Direct observation of ionic structure at solid-liquid interfaces

T2 - a deep look into the Stern Layer

AU - Siretanu, Igor

AU - Ebeling, Daniel

AU - Andersson, Martin Peter

AU - Stipp, Susan Louise Svane

AU - Philipse, Albert

AU - Stuart, Martien Cohen

AU - van den Ende, Dirk

AU - Mugele, Frieder

PY - 2014/5/22

Y1 - 2014/5/22

N2 - The distribution of ions and charge at solid-water interfaces plays an essential role in a wide range of processes in biology, geology and technology. While theoretical models of the solid-electrolyte interface date back to the early 20th century, a detailed picture of the structure of the electric double layer has remained elusive, largely because of experimental techniques have not allowed direct observation of the behaviour of ions, i.e. with subnanometer resolution. We have made use of recent advances in high-resolution Atomic Force Microscopy to reveal, with atomic level precision, the ordered adsorption of the mono- and divalent ions that are common in natural environments to heterogeneous gibbsite/silica surfaces in contact with aqueous electrolytes. Complemented by density functional theory, our experiments produce a detailed picture of the formation of surface phases by templated adsorption of cations, anions and water, stabilized by hydrogen bonding.

AB - The distribution of ions and charge at solid-water interfaces plays an essential role in a wide range of processes in biology, geology and technology. While theoretical models of the solid-electrolyte interface date back to the early 20th century, a detailed picture of the structure of the electric double layer has remained elusive, largely because of experimental techniques have not allowed direct observation of the behaviour of ions, i.e. with subnanometer resolution. We have made use of recent advances in high-resolution Atomic Force Microscopy to reveal, with atomic level precision, the ordered adsorption of the mono- and divalent ions that are common in natural environments to heterogeneous gibbsite/silica surfaces in contact with aqueous electrolytes. Complemented by density functional theory, our experiments produce a detailed picture of the formation of surface phases by templated adsorption of cations, anions and water, stabilized by hydrogen bonding.

U2 - 10.1038/srep04956

DO - 10.1038/srep04956

M3 - Journal article

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SN - 2045-2322

VL - 4

JO - Scientific Reports

JF - Scientific Reports

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ER -

Direct observation of ionic structure at solid-liquid interfaces: a deep look into the Stern Layer

Abstract

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