Molecular Structure Effects on Ionic Diode Performance in Desalination: Ultrahigh Rectification in Butylated Intrinsically Microporous Polyamine (PIM-EA-TB)

Zhongkai Li; Mariolino Carta; Neil B. McKeown; Raphael E Agbenyeke; Jean-Charles Eloi; David J Fermin; Omotayo Arotiba; Frank Marken

doi:10.1002/celc.202300807

Molecular Structure Effects on Ionic Diode Performance in Desalination: Ultrahigh Rectification in Butylated Intrinsically Microporous Polyamine (PIM-EA-TB)

Zhongkai Li, Mariolino Carta, Neil B. McKeown, Raphael E Agbenyeke, Jean-Charles Eloi, David J Fermin, Omotayo Arotiba, Frank Marken^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

2 Citations (Scopus)

Abstract

Ionic diodes are components in ionic circuits for AC-electricity driven desalination and ion extraction processes. Independent of the ionic diode type/mechanism, achieving ionic current rectification at high ionic strengths is challenging but important, for example in seawater desalination and treatment of brine. Here, the butylation of a molecularly rigid (glassy) polymer of intrinsic microporosity (PIM-EA-TB) is shown to give anionic diodes with ultrahigh rectification effects (associated with interfacial resistivity) even in high ionic strength aqueous 2 M NaCl solution. The effect is rationalised based on polymer structure affecting ion transport.

Original language	English
Article number	e202300807
Number of pages	9
Journal	ChemElectroChem
Volume	11
Issue number	9
DOIs	https://doi.org/10.1002/celc.202300807
Publication status	Published - 7 Mar 2024

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© 2024 The Authors. ChemElectroChem published by Wiley-VCH GmbH.

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Solution-Processed Inorganic Thin-Film Photovoltaic Devices (SolPV)
Fermin, D. J. (Principal Investigator)
1/08/21 → 31/01/25
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title = "Molecular Structure Effects on Ionic Diode Performance in Desalination: Ultrahigh Rectification in Butylated Intrinsically Microporous Polyamine (PIM-EA-TB)",

abstract = "Ionic diodes are components in ionic circuits for AC-electricity driven desalination and ion extraction processes. Independent of the ionic diode type/mechanism, achieving ionic current rectification at high ionic strengths is challenging but important, for example in seawater desalination and treatment of brine. Here, the butylation of a molecularly rigid (glassy) polymer of intrinsic microporosity (PIM-EA-TB) is shown to give anionic diodes with ultrahigh rectification effects (associated with interfacial resistivity) even in high ionic strength aqueous 2 M NaCl solution. The effect is rationalised based on polymer structure affecting ion transport.",

author = "Zhongkai Li and Mariolino Carta and McKeown, {Neil B.} and Agbenyeke, {Raphael E} and Jean-Charles Eloi and Fermin, {David J} and Omotayo Arotiba and Frank Marken",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors. ChemElectroChem published by Wiley-VCH GmbH.",

year = "2024",

month = mar,

day = "7",

doi = "10.1002/celc.202300807",

language = "English",

volume = "11",

journal = "ChemElectroChem",

issn = "2196-0216",

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TY - JOUR

T1 - Molecular Structure Effects on Ionic Diode Performance in Desalination

T2 - Ultrahigh Rectification in Butylated Intrinsically Microporous Polyamine (PIM-EA-TB)

AU - Li, Zhongkai

AU - Carta, Mariolino

AU - McKeown, Neil B.

AU - Agbenyeke, Raphael E

AU - Eloi, Jean-Charles

AU - Fermin, David J

AU - Arotiba, Omotayo

AU - Marken, Frank

PY - 2024/3/7

Y1 - 2024/3/7

N2 - Ionic diodes are components in ionic circuits for AC-electricity driven desalination and ion extraction processes. Independent of the ionic diode type/mechanism, achieving ionic current rectification at high ionic strengths is challenging but important, for example in seawater desalination and treatment of brine. Here, the butylation of a molecularly rigid (glassy) polymer of intrinsic microporosity (PIM-EA-TB) is shown to give anionic diodes with ultrahigh rectification effects (associated with interfacial resistivity) even in high ionic strength aqueous 2 M NaCl solution. The effect is rationalised based on polymer structure affecting ion transport.

AB - Ionic diodes are components in ionic circuits for AC-electricity driven desalination and ion extraction processes. Independent of the ionic diode type/mechanism, achieving ionic current rectification at high ionic strengths is challenging but important, for example in seawater desalination and treatment of brine. Here, the butylation of a molecularly rigid (glassy) polymer of intrinsic microporosity (PIM-EA-TB) is shown to give anionic diodes with ultrahigh rectification effects (associated with interfacial resistivity) even in high ionic strength aqueous 2 M NaCl solution. The effect is rationalised based on polymer structure affecting ion transport.

U2 - 10.1002/celc.202300807

DO - 10.1002/celc.202300807

M3 - Article (Academic Journal)

SN - 2196-0216

VL - 11

JO - ChemElectroChem

JF - ChemElectroChem

IS - 9

M1 - e202300807

ER -

Molecular Structure Effects on Ionic Diode Performance in Desalination: Ultrahigh Rectification in Butylated Intrinsically Microporous Polyamine (PIM-EA-TB)

Abstract

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Solution-Processed Inorganic Thin-Film Photovoltaic Devices (SolPV)

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