Long-range selective transport of anions and cations in graphene oxide membranes, causing selective crystallization on the macroscale
Journal article, 2021

Monoatomic nanosheets can form 2-dimensional channels with tunable chemical properties, for ion storage and filtering applications. Here, we demonstrate transport of K+, Na+, and Li+ cations and F- and Cl- anions on the centimeter scale in graphene oxide membranes (GOMs), triggered by an electric bias. Besides ion transport, the GOM channels foster also the aggregation of the selected ions in salt crystals, whose composition is not the same as that of the pristine salt present in solution, highlighting the difference between the chemical environment in the 2D channels and in bulk solutions.

Author

Vanesa Quintano

Consiglo Nazionale Delle Richerche

Alessandro Kovtun

Consiglo Nazionale Delle Richerche

Fabio Biscarini

University of Modena and Reggio Emilia

F. Liscio

Consiglo Nazionale Delle Richerche

A. Liscio

Consiglo Nazionale Delle Richerche

Vincenzo Palermo

Chalmers, Industrial and Materials Science, Materials and manufacture

Consiglo Nazionale Delle Richerche

Nanoscale Advances

25160230 (eISSN)

Vol. 3 2 353-358

Subject Categories

Physical Chemistry

Materials Chemistry

Nano Technology

DOI

10.1039/d0na00807a

More information

Latest update

2/16/2021