Characterization of ionic transport at the nanoscale

Junghoon Yeom; S. Prakash; M. A. Shannon; Niu Jin; I. Adesida

doi:10.1243/17403499JNN91

Characterization of ionic transport at the nanoscale

Junghoon Yeom, S. Prakash, M. A. Shannon, Niu Jin, I. Adesida

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

This paper reports on the development of a multi-layer microscale impedance measurement system with integrated working, counter, and reference electrodes that can be used to probe transport at the nanoscale. System fabrication and testing are carried out to demonstrate the feasibility of such a system for characterizing transport through nanocapillary array membranes (NCAMs). Results indicate that transport through NCAMs is a complex phenomenon, and impedance does not scale linearly with either pore diameter or ionic concentration. Use of a microscale construct for probing ionic transport at the nanoscale appears to be a promising path forward with further development.

Original language	English
Pages (from-to)	45-52
Number of pages	8
Journal	Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems
Volume	220
Issue number	2
DOIs	https://doi.org/10.1243/17403499JNN91
Publication status	Published - Jun 1 2006
Externally published	Yes

Keywords

aqueous ionic transport
electrochemical impedance spectroscopy
microscale
nanocapillaries
nanopore
water

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Electrical and Electronic Engineering

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AU - Yeom, Junghoon

AU - Prakash, S.

AU - Shannon, M. A.

AU - Jin, Niu

AU - Adesida, I.

PY - 2006/6/1

Y1 - 2006/6/1

N2 - This paper reports on the development of a multi-layer microscale impedance measurement system with integrated working, counter, and reference electrodes that can be used to probe transport at the nanoscale. System fabrication and testing are carried out to demonstrate the feasibility of such a system for characterizing transport through nanocapillary array membranes (NCAMs). Results indicate that transport through NCAMs is a complex phenomenon, and impedance does not scale linearly with either pore diameter or ionic concentration. Use of a microscale construct for probing ionic transport at the nanoscale appears to be a promising path forward with further development.

AB - This paper reports on the development of a multi-layer microscale impedance measurement system with integrated working, counter, and reference electrodes that can be used to probe transport at the nanoscale. System fabrication and testing are carried out to demonstrate the feasibility of such a system for characterizing transport through nanocapillary array membranes (NCAMs). Results indicate that transport through NCAMs is a complex phenomenon, and impedance does not scale linearly with either pore diameter or ionic concentration. Use of a microscale construct for probing ionic transport at the nanoscale appears to be a promising path forward with further development.

KW - aqueous ionic transport

KW - electrochemical impedance spectroscopy

KW - microscale

KW - nanocapillaries

KW - nanopore

KW - water

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Characterization of ionic transport at the nanoscale

Abstract

Keywords

ASJC Scopus subject areas

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