Photoelectroanalytical Oxygen Detection with Titanate Nanosheet - Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity (PIM-1)

Frank Marken; Yuanzhu Zhao; Budi Riza Putra Putra; Bingbing Fan; Christian Harito; Dmitry V Bavykin; Frank C Walsh; Mariolino Carta; R. Malpass-Evans; Neil B. Mckeown

doi:10.1002/elan.202060353

Photoelectroanalytical Oxygen Detection with Titanate Nanosheet - Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity (PIM-1)

Frank Marken, Yuanzhu Zhao, Budi Riza Putra Putra, Bingbing Fan, Christian Harito, Dmitry V Bavykin, Frank C Walsh, Mariolino Carta, R. Malpass-Evans, Neil B. Mckeown

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6 Citations (SciVal)

Abstract

The polymer of intrinsic microporosity PIM-1 is employed to disperse and deposit a Pt@titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction voltammetric responses on glassy carbon or on platinum disk electrodes in the dark. Preliminary data are presented showing that with pulsed light from a blue LED (385 nm) oxygen reduction at the electrode is effectively “switched off”. A mechanism is tentatively assigned as photocatalytic depletion of oxygen near the electrode. Photoelectrochemical current responses are observed in aqueous NaOH, NaCl, Na2HPO4 and shown to be light intensity and oxygen concentration dependent. Electroanalytical applications are suggested.

Original language	English
Pages (from-to)	2756-2763
Journal	Electroanalysis
Volume	32
Issue number	12
Early online date	3 Sept 2020
DOIs	https://doi.org/10.1002/elan.202060353
Publication status	Published - 31 Dec 2020

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title = "Photoelectroanalytical Oxygen Detection with Titanate Nanosheet - Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity (PIM-1)",

abstract = "The polymer of intrinsic microporosity PIM-1 is employed to disperse and deposit a Pt@titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction voltammetric responses on glassy carbon or on platinum disk electrodes in the dark. Preliminary data are presented showing that with pulsed light from a blue LED (385 nm) oxygen reduction at the electrode is effectively “switched off”. A mechanism is tentatively assigned as photocatalytic depletion of oxygen near the electrode. Photoelectrochemical current responses are observed in aqueous NaOH, NaCl, Na2HPO4 and shown to be light intensity and oxygen concentration dependent. Electroanalytical applications are suggested.",

author = "Frank Marken and Yuanzhu Zhao and Putra, {Budi Riza Putra} and Bingbing Fan and Christian Harito and Bavykin, {Dmitry V} and Walsh, {Frank C} and Mariolino Carta and R. Malpass-Evans and Mckeown, {Neil B.}",

year = "2020",

month = dec,

day = "31",

doi = "10.1002/elan.202060353",

language = "English",

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T1 - Photoelectroanalytical Oxygen Detection with Titanate Nanosheet - Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity (PIM-1)

AU - Marken, Frank

AU - Zhao, Yuanzhu

AU - Putra, Budi Riza Putra

AU - Fan, Bingbing

AU - Harito, Christian

AU - Bavykin, Dmitry V

AU - Walsh, Frank C

AU - Carta, Mariolino

AU - Malpass-Evans, R.

AU - Mckeown, Neil B.

PY - 2020/12/31

Y1 - 2020/12/31

N2 - The polymer of intrinsic microporosity PIM-1 is employed to disperse and deposit a Pt@titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction voltammetric responses on glassy carbon or on platinum disk electrodes in the dark. Preliminary data are presented showing that with pulsed light from a blue LED (385 nm) oxygen reduction at the electrode is effectively “switched off”. A mechanism is tentatively assigned as photocatalytic depletion of oxygen near the electrode. Photoelectrochemical current responses are observed in aqueous NaOH, NaCl, Na2HPO4 and shown to be light intensity and oxygen concentration dependent. Electroanalytical applications are suggested.

AB - The polymer of intrinsic microporosity PIM-1 is employed to disperse and deposit a Pt@titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction voltammetric responses on glassy carbon or on platinum disk electrodes in the dark. Preliminary data are presented showing that with pulsed light from a blue LED (385 nm) oxygen reduction at the electrode is effectively “switched off”. A mechanism is tentatively assigned as photocatalytic depletion of oxygen near the electrode. Photoelectrochemical current responses are observed in aqueous NaOH, NaCl, Na2HPO4 and shown to be light intensity and oxygen concentration dependent. Electroanalytical applications are suggested.

U2 - 10.1002/elan.202060353

DO - 10.1002/elan.202060353

M3 - Article

SN - 1040-0397

VL - 32

SP - 2756

EP - 2763

JO - Electroanalysis

JF - Electroanalysis

IS - 12

ER -

Photoelectroanalytical Oxygen Detection with Titanate Nanosheet - Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity (PIM-1)

Abstract

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