Surface Enrichment and Depletion Effects of Ions Dissolved in an Ionic Liquid: An X‐ray Photoelectron Spectroscopy Study | Zendy

Maier Florian | Zendy; Gottfried J. Michael | Zendy; Rossa Jürgen | Zendy; Gerhard Dirk | Zendy; Schulz Peter Steffen | Zendy; Schwieger Wilhelm | Zendy; Wasserscheid Peter | Zendy; Steinrück HansPeter | Zendy

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Surface Enrichment and Depletion Effects of Ions Dissolved in an Ionic Liquid: An X‐ray Photoelectron Spectroscopy Study

Author(s) -

Maier Florian,

Gottfried J. Michael,

Rossa Jürgen,

Gerhard Dirk,

Schulz Peter Steffen,

Schwieger Wilhelm,

Wasserscheid Peter,

Steinrück HansPeter

Publication year - 2006

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200602756

Subject(s) - x ray photoelectron spectroscopy , ionic liquid , ion , spectroscopy , x ray , chemistry , ionic bonding , analytical chemistry (journal) , inorganic chemistry , materials science , environmental chemistry , physics , nuclear magnetic resonance , optics , organic chemistry , catalysis , quantum mechanics

Surfaces of ionic liquids : Angle‐dependent X‐ray photoelectron spectroscopy (XPS) shows that the surface composition of a solution of [Pt(NH 3 ) 4 ]Cl 2 in the ionic liquid 1‐ethyl‐3‐methylimidazolium ethyl sulfate ([EMIM][EtOSO 3 ]) deviates considerably from the bulk composition. The [Pt(NH 3 ) 4 ] 2+ cation is enriched on the surface at the expense of the [EMIM] cation (see picture), while the Cl − anion is depleted to below the XPS detection limit.

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