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Single Graphene Layer on Pt(111) Creates Confined Electrochemical Environment via Selective Ion Transport
Author(s) -
Fu Yongchun,
Rudnev Alexander V.,
Wiberg Gustav K. H.,
Arenz Matthias
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201705952
Subject(s) - graphene , electrochemistry , selectivity , intercalation (chemistry) , ion , materials science , permeation , nanotechnology , layer (electronics) , penetration (warfare) , membrane , chemical engineering , inorganic chemistry , chemistry , electrode , organic chemistry , catalysis , biochemistry , engineering , operations research
Graphene is a promising candidate for an ideal membrane material. Its ultralow (one‐atomic) thickness potentially provides high permeation and at the same time high selectivity. Here, it is shown that these properties can be used to create a confined, two‐dimensional electrochemical environment between a graphene layer and a single‐crystal Pt(111) surface. The well‐defined fingerprint voltammetric characteristics of Pt(111) provide an immediate information about the penetration and intercalation of ions into the confined space. These processes are shown to be highly selective.