Boron-Doped Diamond Dual-Plate Microtrench Electrode for Generator-Collector Chloride/Chlorine Sensing

Andrew Gross, Frank Marken

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Abstract

A novel generator-collector dual-plate boron-doped diamond microtrench sensor is fabricated and its operation demonstrated for chloride/chlorine detection in the harsh anodic potential range. Detection is made sensitive by minimising the inter-electrode gap to ≤ 10 micron wide and setting the generator and collector potentials to enable repetitive redox cycling. The concentration and potential-dependant impact on the generator and collector currents are reported and optimised conditions suitable for quantitative determination are demonstrated. The diffusional redox cycling currents for chloride in buffer solution are kinetically controlled and first order over a concentration range of 1 to 140 mM.
Original languageEnglish
JournalElectrochemistry Communications
Volume46
Publication statusPublished - Jul 2014

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Diamond
Boron
Chlorine
Chlorides
Diamonds
Electrodes
Buffers
Sensors
Oxidation-Reduction

Cite this

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title = "Boron-Doped Diamond Dual-Plate Microtrench Electrode for Generator-Collector Chloride/Chlorine Sensing",
abstract = "A novel generator-collector dual-plate boron-doped diamond microtrench sensor is fabricated and its operation demonstrated for chloride/chlorine detection in the harsh anodic potential range. Detection is made sensitive by minimising the inter-electrode gap to ≤ 10 micron wide and setting the generator and collector potentials to enable repetitive redox cycling. The concentration and potential-dependant impact on the generator and collector currents are reported and optimised conditions suitable for quantitative determination are demonstrated. The diffusional redox cycling currents for chloride in buffer solution are kinetically controlled and first order over a concentration range of 1 to 140 mM.",
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journal = "Electrochemistry Communications",
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AU - Gross, Andrew

AU - Marken, Frank

PY - 2014/7

Y1 - 2014/7

N2 - A novel generator-collector dual-plate boron-doped diamond microtrench sensor is fabricated and its operation demonstrated for chloride/chlorine detection in the harsh anodic potential range. Detection is made sensitive by minimising the inter-electrode gap to ≤ 10 micron wide and setting the generator and collector potentials to enable repetitive redox cycling. The concentration and potential-dependant impact on the generator and collector currents are reported and optimised conditions suitable for quantitative determination are demonstrated. The diffusional redox cycling currents for chloride in buffer solution are kinetically controlled and first order over a concentration range of 1 to 140 mM.

AB - A novel generator-collector dual-plate boron-doped diamond microtrench sensor is fabricated and its operation demonstrated for chloride/chlorine detection in the harsh anodic potential range. Detection is made sensitive by minimising the inter-electrode gap to ≤ 10 micron wide and setting the generator and collector potentials to enable repetitive redox cycling. The concentration and potential-dependant impact on the generator and collector currents are reported and optimised conditions suitable for quantitative determination are demonstrated. The diffusional redox cycling currents for chloride in buffer solution are kinetically controlled and first order over a concentration range of 1 to 140 mM.

M3 - Article

VL - 46

JO - Electrochemistry Communications

JF - Electrochemistry Communications

SN - 1388-2481

ER -