Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Budi Riza Putra; Barak D.B. Aaronson; Elena Madrid; Klaus Mathwig; Mariolino Carta; Richard Malpass-evans; Neil B. Mckeown; Frank Marken

doi:10.1002/elan.201700247

Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Budi Riza Putra, Barak D.B. Aaronson, Elena Madrid, Klaus Mathwig, Mariolino Carta, Richard Malpass-evans, Neil B. Mckeown, Frank Marken

Department of Chemistry

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

10 Citations (SciVal)

Abstract

Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

Original language	English
Pages (from-to)	2217-2223
Number of pages	7
Journal	Electroanalysis
Volume	29
Issue number	10
Early online date	27 Jun 2017
DOIs	https://doi.org/10.1002/elan.201700247
Publication status	Published - 1 Oct 2017

Keywords

desalination
ionic diode
Ionomer
nanofluidics
polymer interface
voltammetry

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

Access to Document

10.1002/elan.201700247

Cite this

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title = "Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate",

abstract = "Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.",

keywords = "desalination, ionic diode, Ionomer, nanofluidics, polymer interface, voltammetry",

author = "Putra, {Budi Riza} and Aaronson, {Barak D.B.} and Elena Madrid and Klaus Mathwig and Mariolino Carta and Richard Malpass-evans and Mckeown, {Neil B.} and Frank Marken",

year = "2017",

month = oct,

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doi = "10.1002/elan.201700247",

language = "English",

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journal = "Electroanalysis",

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AU - Putra, Budi Riza

AU - Aaronson, Barak D.B.

AU - Madrid, Elena

AU - Mathwig, Klaus

AU - Carta, Mariolino

AU - Malpass-evans, Richard

AU - Mckeown, Neil B.

AU - Marken, Frank

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

AB - Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

KW - desalination

KW - ionic diode

KW - Ionomer

KW - nanofluidics

KW - polymer interface

KW - voltammetry

UR - http://www.scopus.com/inward/record.url?scp=85030642386&partnerID=8YFLogxK

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VL - 29

SP - 2217

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JO - Electroanalysis

JF - Electroanalysis

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ER -

Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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New Materials for Ionic Diodes and Ionic Photodiodes

Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly

Cite this

Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

New Materials for Ionic Diodes and Ionic Photodiodes

Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly

Cite this