Single Graphene Layer on Pt(111) Creates Confined Electrochemical Environment via Selective Ion Transport

Yongchun Fu; Alexander V Rudnev; Gustav K H Wiberg; Matthias Arenz

doi:10.1002/anie.201705952

Single Graphene Layer on Pt(111) Creates Confined Electrochemical Environment via Selective Ion Transport

Angew Chem Int Ed Engl. 2017 Oct 9;56(42):12883-12887. doi: 10.1002/anie.201705952. Epub 2017 Sep 7.

Authors

Yongchun Fu¹, Alexander V Rudnev^{1

2}, Gustav K H Wiberg¹, Matthias Arenz¹

Affiliations

¹ Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.
² A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia.

PMID: 28763143
DOI: 10.1002/anie.201705952

Abstract

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.

Keywords: electrochemistry; graphene; nanocatalysis; platinum surface; selective ion transport.

Publication types

Research Support, Non-U.S. Gov't