Polymers of intrinsic microporosity in electrochemistry: anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes

Yuanyang Rong; Adam Kolodziej; Elena Madrid; Mariolino Carta; Richard Malpass-Evans; Neil B. McKeown; Frank Marken

doi:10.1016/j.jelechem.2015.11.038

Polymers of intrinsic microporosity in electrochemistry: anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes

Yuanyang Rong, Adam Kolodziej, Elena Madrid, Mariolino Carta, Richard Malpass-Evans, Neil B. McKeown, Frank Marken

University of Edinburgh

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

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Abstract

Anion uptake and charge transport in a polymer of intrinsic microporosity (here PIM-EA-TB) is investigated for three cases: (i) the oxidation of ferrocene embedded into a thin film of PIM-EA-TB on a glassy carbon electrode, (ii) the reduction of protons absorbed into a thin film of PIM-EA-TB on a platinum electrode, and (iii) the potential-driven transport of anions and protons in an asymmetrically deposited free-standing PIM-EA-TB membrane working as a current rectifier or "ionic diode". In all three cases the competing effects of the diameter and hydrophobicity (size and hydration energy) of the anion are important. For free-standing membranes very high ionic diode rectification ratios (>10³ at ±1V) are observed in particular for thicker deposits of PIM-EA-TB and for chloride or perchlorate containing electrolyte.

Original language	English
Pages (from-to)	241-249
Number of pages	9
Journal	Journal of Electroanalytical Chemistry
Volume	779
Early online date	30 Nov 2015
DOIs	https://doi.org/10.1016/j.jelechem.2015.11.038
Publication status	Published - 15 Oct 2016

Keywords

Catalysis
Ferrocene
Ion exchange
Permselectivity
Voltammetry
Water

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10.1016/j.jelechem.2015.11.038

Polymers of intrinsic microporosity
The published version is available via: http://dx.doi.org/10.1016/j.jelechem.2015.11.038
Accepted author manuscript, 2.01 MBLicence: CC BY-NC-ND

Cite this

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title = "Polymers of intrinsic microporosity in electrochemistry: anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes",

abstract = "Anion uptake and charge transport in a polymer of intrinsic microporosity (here PIM-EA-TB) is investigated for three cases: (i) the oxidation of ferrocene embedded into a thin film of PIM-EA-TB on a glassy carbon electrode, (ii) the reduction of protons absorbed into a thin film of PIM-EA-TB on a platinum electrode, and (iii) the potential-driven transport of anions and protons in an asymmetrically deposited free-standing PIM-EA-TB membrane working as a current rectifier or {"}ionic diode{"}. In all three cases the competing effects of the diameter and hydrophobicity (size and hydration energy) of the anion are important. For free-standing membranes very high ionic diode rectification ratios (>103 at ±1V) are observed in particular for thicker deposits of PIM-EA-TB and for chloride or perchlorate containing electrolyte.",

keywords = "Catalysis, Ferrocene, Ion exchange, Permselectivity, Voltammetry, Water",

author = "Yuanyang Rong and Adam Kolodziej and Elena Madrid and Mariolino Carta and Richard Malpass-Evans and McKeown, {Neil B.} and Frank Marken",

year = "2016",

month = oct,

day = "15",

doi = "10.1016/j.jelechem.2015.11.038",

language = "English",

volume = "779",

pages = "241--249",

journal = "Journal of Electroanalytical Chemistry",

issn = "1572-6657",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Polymers of intrinsic microporosity in electrochemistry

T2 - anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes

AU - Rong, Yuanyang

AU - Kolodziej, Adam

AU - Madrid, Elena

AU - Carta, Mariolino

AU - Malpass-Evans, Richard

AU - McKeown, Neil B.

AU - Marken, Frank

PY - 2016/10/15

Y1 - 2016/10/15

N2 - Anion uptake and charge transport in a polymer of intrinsic microporosity (here PIM-EA-TB) is investigated for three cases: (i) the oxidation of ferrocene embedded into a thin film of PIM-EA-TB on a glassy carbon electrode, (ii) the reduction of protons absorbed into a thin film of PIM-EA-TB on a platinum electrode, and (iii) the potential-driven transport of anions and protons in an asymmetrically deposited free-standing PIM-EA-TB membrane working as a current rectifier or "ionic diode". In all three cases the competing effects of the diameter and hydrophobicity (size and hydration energy) of the anion are important. For free-standing membranes very high ionic diode rectification ratios (>103 at ±1V) are observed in particular for thicker deposits of PIM-EA-TB and for chloride or perchlorate containing electrolyte.

AB - Anion uptake and charge transport in a polymer of intrinsic microporosity (here PIM-EA-TB) is investigated for three cases: (i) the oxidation of ferrocene embedded into a thin film of PIM-EA-TB on a glassy carbon electrode, (ii) the reduction of protons absorbed into a thin film of PIM-EA-TB on a platinum electrode, and (iii) the potential-driven transport of anions and protons in an asymmetrically deposited free-standing PIM-EA-TB membrane working as a current rectifier or "ionic diode". In all three cases the competing effects of the diameter and hydrophobicity (size and hydration energy) of the anion are important. For free-standing membranes very high ionic diode rectification ratios (>103 at ±1V) are observed in particular for thicker deposits of PIM-EA-TB and for chloride or perchlorate containing electrolyte.

KW - Catalysis

KW - Ferrocene

KW - Ion exchange

KW - Permselectivity

KW - Voltammetry

KW - Water

UR - http://www.scopus.com/inward/record.url?scp=84949663969&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1016/j.jelechem.2015.11.038

U2 - 10.1016/j.jelechem.2015.11.038

DO - 10.1016/j.jelechem.2015.11.038

M3 - Article

AN - SCOPUS:84949663969

SN - 1572-6657

VL - 779

SP - 241

EP - 249

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

ER -

Polymers of intrinsic microporosity in electrochemistry: anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes

Abstract

Keywords

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

Autolab Potentiostat & FRA32M module

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Polymers of intrinsic microporosity in electrochemistry: anion uptake and transport effects in thin film electrodes and in free-standing ionic diode membranes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

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

Equipment

Autolab Potentiostat & FRA32M module

Cite this