A miniaturized injection-moulded flow-cell with integrated conducting polymer electrodes for on-line electrochemical degradation of azo dye solutions

Chemistry

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https://doi.org/10.1016/j.mee.2016.11.016
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Keywords

Miniaturization, Micro electrode, Injection moulding, Flow-cell, Methyl orange, Azo dyes, Electrochemical degradation, Carbon fiber

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A miniaturized injection-moulded flow-cell with integrated conducting polymer electrodes for on-line electrochemical degradation of azo dye solutions. / Mohammed Redha, Zainab; Abdulla Yusuf, Hayat; Ahmed, Hussain Ali et al.
In: Microelectronic Engineering, Vol. 169, 05.02.2017, p. 16-23.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{8c92de094b92440b92e8b11ef64db6c1,

title = "A miniaturized injection-moulded flow-cell with integrated conducting polymer electrodes for on-line electrochemical degradation of azo dye solutions",

abstract = "Abstract This study investigates the effectiveness of a novel micro electrochemical flow-cell containing carbon fiber electrodes for the degradation of Azo dye solutions. The flow-cell was fabricated by an injection moulding technique, integrating three electrodes system design using an overmoulding procedure. All electrodes were fabricated from carbon fiber polymer, however, the reference electrode was then coated with Ag/AgCl paste. The effect of the process variables such as flow-rate, NaCl concentration, applied bias current, and solution pH on the degradation process were comprehensively studied. At optimum conditions, complete degradation of the dye was achieved on the bare carbon fiber electrode, without the need for surface modification, in 150 min upon the application of 15 mA bias current. The degradation process was suggested to follow the indirect oxidation mechanism where the presence of chlorine ions was very essential. Moreover, the micro-flow-cell had proven its stability over the entire operation time, which indicates its practicality for such on-line applications.",

keywords = "Miniaturization, Micro electrode, Injection moulding, Flow-cell, Methyl orange, Azo dyes, Electrochemical degradation, Carbon fiber",

author = "{Mohammed Redha}, Zainab and {Abdulla Yusuf}, Hayat and Ahmed, {Hussain Ali} and Fielden, {Peter R.} and Goddard, {Nick J.} and Baldock, {Sara J.}",

year = "2017",

month = feb,

day = "5",

doi = "10.1016/j.mee.2016.11.016",

language = "English",

volume = "169",

pages = "16--23",

journal = "Microelectronic Engineering",

issn = "0167-9317",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - A miniaturized injection-moulded flow-cell with integrated conducting polymer electrodes for on-line electrochemical degradation of azo dye solutions

AU - Mohammed Redha, Zainab

AU - Abdulla Yusuf, Hayat

AU - Ahmed, Hussain Ali

AU - Fielden, Peter R.

AU - Goddard, Nick J.

AU - Baldock, Sara J.

PY - 2017/2/5

Y1 - 2017/2/5

N2 - Abstract This study investigates the effectiveness of a novel micro electrochemical flow-cell containing carbon fiber electrodes for the degradation of Azo dye solutions. The flow-cell was fabricated by an injection moulding technique, integrating three electrodes system design using an overmoulding procedure. All electrodes were fabricated from carbon fiber polymer, however, the reference electrode was then coated with Ag/AgCl paste. The effect of the process variables such as flow-rate, NaCl concentration, applied bias current, and solution pH on the degradation process were comprehensively studied. At optimum conditions, complete degradation of the dye was achieved on the bare carbon fiber electrode, without the need for surface modification, in 150 min upon the application of 15 mA bias current. The degradation process was suggested to follow the indirect oxidation mechanism where the presence of chlorine ions was very essential. Moreover, the micro-flow-cell had proven its stability over the entire operation time, which indicates its practicality for such on-line applications.

AB - Abstract This study investigates the effectiveness of a novel micro electrochemical flow-cell containing carbon fiber electrodes for the degradation of Azo dye solutions. The flow-cell was fabricated by an injection moulding technique, integrating three electrodes system design using an overmoulding procedure. All electrodes were fabricated from carbon fiber polymer, however, the reference electrode was then coated with Ag/AgCl paste. The effect of the process variables such as flow-rate, NaCl concentration, applied bias current, and solution pH on the degradation process were comprehensively studied. At optimum conditions, complete degradation of the dye was achieved on the bare carbon fiber electrode, without the need for surface modification, in 150 min upon the application of 15 mA bias current. The degradation process was suggested to follow the indirect oxidation mechanism where the presence of chlorine ions was very essential. Moreover, the micro-flow-cell had proven its stability over the entire operation time, which indicates its practicality for such on-line applications.

KW - Miniaturization

KW - Micro electrode

KW - Injection moulding

KW - Flow-cell

KW - Methyl orange

KW - Azo dyes

KW - Electrochemical degradation

KW - Carbon fiber

U2 - 10.1016/j.mee.2016.11.016

DO - 10.1016/j.mee.2016.11.016

M3 - Journal article

VL - 169

SP - 16

EP - 23

JO - Microelectronic Engineering

JF - Microelectronic Engineering

SN - 0167-9317

ER -

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