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    Rights statement: This is the author’s version of a work that was accepted for publication in Sensors and Actuators B: Chemical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators B: Chemical, 270, 2018 DOI: 10.1016/j.snb.2018.05.035

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The electrochemical determination of formaldehyde in aqueous media using nickel modified electrodes

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The electrochemical determination of formaldehyde in aqueous media using nickel modified electrodes. / Trivedi, Dhruv; Crosse, John; Tanti, Jonathon; Cass, Alise J.; Toghill, Kathryn E.

In: Sensors and Actuators B: Chemical, Vol. 270, 01.10.2018, p. 298-303.

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Trivedi, Dhruv ; Crosse, John ; Tanti, Jonathon ; Cass, Alise J. ; Toghill, Kathryn E. / The electrochemical determination of formaldehyde in aqueous media using nickel modified electrodes. In: Sensors and Actuators B: Chemical. 2018 ; Vol. 270. pp. 298-303.

Bibtex

@article{ad0e909009344c61976e08a13a1c0fda,
title = "The electrochemical determination of formaldehyde in aqueous media using nickel modified electrodes",
abstract = "Abstract Glassy carbon (GC) electrodes were modified with nickel metal via a simple deposition procedure, followed by enrichment of the nickel in a potassium hydroxide solution to deliver the catalytic nickel hydroxide species (Ni(OH)2). In solutions of 1 M KOH, the nickel modified GC electrode (Ni-GC) contained a reproducible detection limit of the order of 1.1 × 10−5 M for formaldehyde additions. This is comparable and, in many cases, surpasses, platinum group metal modified electrodes. The potentiometric analytical method also allowed for the accurate determination of “unknown” formaldehyde concentrations, over a linear range of 1 × 10−5–1 × 10−3 M and a sensitivity of 22.7± 3.8 μA/mM. Furthermore, the Ni-GC electrode showed negligible response to formate and methanol, even when they were present in concentrations 10 times greater than the formaldehyde. The electrochemical performance was compared to a simple colorimetric approach to formaldehyde determination, wherein a detection limit of 6 × 10−6 M was obtained.",
keywords = "Nickel catalyst, Electrocatalysis, Formaldehyde, Non-enzymatic, CO2 reduction, Hantzsch",
author = "Dhruv Trivedi and John Crosse and Jonathon Tanti and Cass, {Alise J.} and Toghill, {Kathryn E.}",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Sensors and Actuators B: Chemical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators B: Chemical, 270, 2018 DOI: 10.1016/j.snb.2018.05.035",
year = "2018",
month = oct,
day = "1",
doi = "10.1016/j.snb.2018.05.035",
language = "English",
volume = "270",
pages = "298--303",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The electrochemical determination of formaldehyde in aqueous media using nickel modified electrodes

AU - Trivedi, Dhruv

AU - Crosse, John

AU - Tanti, Jonathon

AU - Cass, Alise J.

AU - Toghill, Kathryn E.

N1 - This is the author’s version of a work that was accepted for publication in Sensors and Actuators B: Chemical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators B: Chemical, 270, 2018 DOI: 10.1016/j.snb.2018.05.035

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Abstract Glassy carbon (GC) electrodes were modified with nickel metal via a simple deposition procedure, followed by enrichment of the nickel in a potassium hydroxide solution to deliver the catalytic nickel hydroxide species (Ni(OH)2). In solutions of 1 M KOH, the nickel modified GC electrode (Ni-GC) contained a reproducible detection limit of the order of 1.1 × 10−5 M for formaldehyde additions. This is comparable and, in many cases, surpasses, platinum group metal modified electrodes. The potentiometric analytical method also allowed for the accurate determination of “unknown” formaldehyde concentrations, over a linear range of 1 × 10−5–1 × 10−3 M and a sensitivity of 22.7± 3.8 μA/mM. Furthermore, the Ni-GC electrode showed negligible response to formate and methanol, even when they were present in concentrations 10 times greater than the formaldehyde. The electrochemical performance was compared to a simple colorimetric approach to formaldehyde determination, wherein a detection limit of 6 × 10−6 M was obtained.

AB - Abstract Glassy carbon (GC) electrodes were modified with nickel metal via a simple deposition procedure, followed by enrichment of the nickel in a potassium hydroxide solution to deliver the catalytic nickel hydroxide species (Ni(OH)2). In solutions of 1 M KOH, the nickel modified GC electrode (Ni-GC) contained a reproducible detection limit of the order of 1.1 × 10−5 M for formaldehyde additions. This is comparable and, in many cases, surpasses, platinum group metal modified electrodes. The potentiometric analytical method also allowed for the accurate determination of “unknown” formaldehyde concentrations, over a linear range of 1 × 10−5–1 × 10−3 M and a sensitivity of 22.7± 3.8 μA/mM. Furthermore, the Ni-GC electrode showed negligible response to formate and methanol, even when they were present in concentrations 10 times greater than the formaldehyde. The electrochemical performance was compared to a simple colorimetric approach to formaldehyde determination, wherein a detection limit of 6 × 10−6 M was obtained.

KW - Nickel catalyst

KW - Electrocatalysis

KW - Formaldehyde

KW - Non-enzymatic

KW - CO2 reduction

KW - Hantzsch

U2 - 10.1016/j.snb.2018.05.035

DO - 10.1016/j.snb.2018.05.035

M3 - Journal article

VL - 270

SP - 298

EP - 303

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

ER -