1. Single Graphene Layer on Pt(111) Creates Confined Electrochemical Environment via Selective Ion Transport
- Author
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Matthias Arenz, Yongchun Fu, Alexander V. Rudnev, and Gustav K. H. Wiberg
- Subjects
Graphene ,Intercalation (chemistry) ,Nanotechnology ,02 engineering and technology ,General Chemistry ,Permeation ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Ion ,law.invention ,Membrane ,law ,0210 nano-technology ,Confined space ,Ion transporter - 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.
- Published
- 2017