Journal article
Probing Nanoconfined Ion Transport in Electrified 2D Laminate Membranes with Electrochemical Impedance Spectroscopy
X Wang, Q Liang, WJ Jiang, P Wang, J Liao, Z Xiong, D Li
Small Methods | WILEY-V C H VERLAG GMBH | Published : 2022
Abstract
The recent emergence of electrically conductive nanoporous membranes based on graphene and other 2D materials opens up new opportunities to revisit some longstanding nanoconfined ion transport problems under electrification. This work probes the ionic resistance in electrified multilayered graphene membranes with electrochemical impedance spectroscopy. This study demonstrates that the combination of additive-free feature and tunable slit pore sizes in the sub-10 nm range in graphene-based membranes has made it possible to deconvolute the different ionic processes from the impedance obtained and examine the exclusive influence of pore size on the ionic resistance in a quantitative manner. The..
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Awarded by Australian Research Council
Funding Acknowledgements
The authors thank the Australian Research Council (FL180100029, DE190100445, DP220103498, and DE220100746) for financial support. The authors are also grateful to Prof. Zhe Liu and Ms. Yang Cao for their very helpful discussion. Open access publishing facilitated by The University of Melbourne, as part of the Wiley -The University of Melbourne agreement via the Council of Australian University Librarians.