High density heterogenisation of molecular electrocatalysts in a rigid intrinsically microporous polymer host

Y. Rong, R. Malpass-Evans, M. Carta, N.B. McKeown, G.A. Attard, F. Marken

Research output: Contribution to journalArticle

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Abstract

A water-insoluble Polymer with Intrinsic Microporosity (or PIM, here for the particular case of the Tröger Base system PIM-EA-TB, BET area ca. 103 m2 -1g) is demonstrated to act as a rigid host environment for highly water-insoluble molecular catalysts, here tetraphenylporphyrinato-iron (FeTPP), surrounded by aqueous solution-filled micropores. A PIM-EA-TB film containing catalyst is deposited onto the electrode and immersed for voltammetry (i) with 4-(3-phenyl-propyl)-pyridine to give an organogel, or (ii) bare directly into aqueous solution. The porous host allows processes to be optimised as a function of solution phase, composition, and catalyst loading. Effective electron transfer as well as effective electrocatalysis is reported for aqueous oxygen and peroxide reduction. Given the use of completely water-insoluble catalyst systems, the methodology offers potential for application with a wide range of hitherto unexplored molecular electrocatalysts and catalyst combinations in aqueous media.

Original languageEnglish
Pages (from-to)26-29
Number of pages4
JournalElectrochemistry Communications
Volume46
Early online date12 Jun 2014
DOIs
Publication statusPublished - Sep 2014

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Electrocatalysts
Polymers
Catalysts
Water
Electrocatalysis
Microporosity
Peroxides
Voltammetry
Phase composition
Pyridine
Iron
Oxygen
Electrodes
Electrons

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High density heterogenisation of molecular electrocatalysts in a rigid intrinsically microporous polymer host. / Rong, Y.; Malpass-Evans, R.; Carta, M.; McKeown, N.B.; Attard, G.A.; Marken, F.

In: Electrochemistry Communications, Vol. 46, 09.2014, p. 26-29.

Research output: Contribution to journalArticle

Rong, Y. ; Malpass-Evans, R. ; Carta, M. ; McKeown, N.B. ; Attard, G.A. ; Marken, F. / High density heterogenisation of molecular electrocatalysts in a rigid intrinsically microporous polymer host. In: Electrochemistry Communications. 2014 ; Vol. 46. pp. 26-29.
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